Automating Substation and Distribution Systems for a Smarter Grid · 2010-08-05 · Automating...

Automating Substation and Distribution Systems for a Smarter Grid

• Expertise in communications, computing, and control

• Designed for substation environments

• IEEE 1588 version 2 precision timing

• IEC 61850-3 and IEEE1613 certified (KEMA tested)

• Zero-packet-loss Ethernet switches

Smart Grid Power T&D

Industrial Networking/Com

puting

Substation LAN

IP/Ethernet Substation Networks — The Cornerstone of a Smart GridThe smart grid will be more intelligent, responsive, and adaptable than The smart grid will be more intelligent, responsive, and adaptable than power grids that exist today by becoming more decentralized. Information power grids that exist today by becoming more decentralized. Information gathering and decision making will occur further down, at the substation gathering and decision making will occur further down, at the substation level. The electricity dispatching control center supervises the grid level. The electricity dispatching control center supervises the grid intelligence strategic management, while the transmission and distribution intelligence strategic management, while the transmission and distribution automated management conducts operations. Information then goes automated management conducts operations. Information then goes to intelligent substations. The intelligent substation will report electricity to intelligent substations. The intelligent substation will report electricity to intelligent substations. The intelligent substation will report electricity to intelligent substations. The intelligent substation will report electricity consumption, switchboard operation, information gathering, and station consumption, switchboard operation, information gathering, and station decision making back to the electricity dispatching control center. In decision making back to the electricity dispatching control center. In addition, smart grid substations will play a larger role in AMI backhaul and addition, smart grid substations will play a larger role in AMI backhaul and distribution automation initiatives to secure private networking for advanced distribution automation initiatives to secure private networking for advanced metering.

An intelligent grid will require a smart backbone made up of a strong An intelligent grid will require a smart backbone made up of a strong network and communications infrastructure. The requirements of the network and communications infrastructure. The requirements of the communications network are inextricably tied to those of the smart grid communications network are inextricably tied to those of the smart grid itself, encompassing issues such as scalable bandwidth, robust security, itself, encompassing issues such as scalable bandwidth, robust security, high network reliability and availability, and cost–effectiveness. There is an high network reliability and availability, and cost–effectiveness. There is an ongoing and gradual convergence of power transmission systems towards ongoing and gradual convergence of power transmission systems towards a common IP and Ethernet infrastructure at both the local substation a common IP and Ethernet infrastructure at both the local substation LAN level and in wide area substation WAN connectivity. Ethernet-based LAN level and in wide area substation WAN connectivity. Ethernet-based substation networks will become an indispensable tool to revolutionize substation networks will become an indispensable tool to revolutionize power system communications.

1

Toward a Smarter Grid

Power T&D Trends

Modern electricity providers must navigate a precise course between business realities, the energy demands of modern society, and Modern electricity providers must navigate a precise course between business realities, the energy demands of modern society, and the sustainability requirements of the environment in which we live. This has produced a revolution of “Smart Grid” technology that the sustainability requirements of the environment in which we live. This has produced a revolution of “Smart Grid” technology that draw on advanced monitoring, control, and communications technologies. This revolution provides new ways of thinking about how draw on advanced monitoring, control, and communications technologies. This revolution provides new ways of thinking about how to deliver energy efficiently and reliably in the future. to deliver energy efficiently and reliably in the future.

Power substations transport electricity from power plants to homes, businesses, and factories, and are a critical component of the Power substations transport electricity from power plants to homes, businesses, and factories, and are a critical component of the smart grid. The modernization of legacy Transmission and Distribution (T&D) systems to provide reliable T&D information for electric smart grid. The modernization of legacy Transmission and Distribution (T&D) systems to provide reliable T&D information for electric power management is a key goal for today’s smart grid applications.power management is a key goal for today’s smart grid applications.

Electricity consumption, switchboard operation, information gathering, station decision making feedback

Grid intelligence strategic decision, T&D automated management

Substation LAN

Power Dispatching

Control Center

2

Complete Substation-specific Functionalities PowerTrans Series IEC 61850-3 Ethernet switches

PTC-101 SeriesIEC 61850-3 media converters

CN 2650 SeriesRS-232/422/485 terminal server

DA-681 SeriesIEC 61850-3 embedded computers

PowerTrans Series IEC 61850-3 Ethernet switches

Moxa’s Networking and Computing Solutions

• IEEE 1613 and IEC 61850-3 EMI Immunity (KEMA tested)

• Wide operating temperature -40 to 85°C (fanless)

• Fast ring recovery time (< 20 ms) with a full load of 250 Ethernet switches

• Isolated dual redundant power supplies

• High integration between serial devices, • High integration between serial devices, LANs, and WLANs

Pas

s KEMA Test

3

Moxa’s Networking and Computing Solutions for Substation Environments

Power T&D Product Offerings

IEC 61850-3 Ethernet Switches

1 Protocol Converter• Basic data processing ability• Connects to many serial devices• Converts protocols from many different sources

2 Protection and Management Computer• Converts protocol from different IEDs• Manages the system• Can connect IEDs using different protocols• Instantly reacts and deals with emergencies

3 Front-end Communication Computer• Collect information from other protocol converter

computers and deliver them to the control center• More powerful processor than normal protocol

converters• HMI support (depends)

• IEC 61850-3, GOOSE, and IEEE 1613 Class 2 compliant (KEMA tested)

• Zero packet loss under harsh EMI stress

• Nanosecond-precise time synchronization with IEEE 1588 v2

• Isolated redundant power inputs at 24/48 VDC or 110/220 VDC/VAC

• Fast ring recovery time (20 ms with 250 switches)

• -40 to 85°C operating temperatures

PT-7800/7700 series

PT-7700-PTP series

PT-500 series

PTC-101 series

DA-710 series

DA-682 series

DA-681 series

• 10/100BaseT(X) auto-negotiation and auto-MDI/MDI-X• Link Fault Pass-Through (LFP)• Power failure alarm by relay output (LV model only)• -40 to 85°C operating temperature range• Redundant dual DC power inputs• Integrated high-reliability power supply eliminates the need for external power transformer

Connecting Legacy Devices to Ethernet• Connect legacy serial RTUs, PLCs,

and meters to Ethernet networks• Complete virtual COM drivers for

Windows and Linux• Versatile operation modes to

customize application behavior• Ruggedized design to extend

operating temperature• Varied mounting options to adapt to

different installation scenarios

NPort 5000A series

NPort® S8000 seriesNPort® S8000 series

CN2600 seriesCN2600 series

5 3 4

2 1

IEC 61850-3 Media Converters

Serial to Ethernet Servers

Industrial Embedded Computers

PT-500 series

DA-660 seriesDA-660 series

Industrial Embedded Computer Features and Applications

19” Rack Mounting PT-7828 4G+24-port, Layer 3 switching

PT-7728-PTP 4G+24-port, 14-port IEEE 1588 v2 support

PT-7728 4G+24-port

PT-G7509 9G-port, full gigabit

PT-7710 2G+8-port, panel mounting options

DIN-Rail MountingPT-508 8-port, with 2 fiber ports

PT-510 10-port, with 2 fiber ports

Device ServerNPort 5000A Series 1/2/4-port RS-232/422/485 with surge protection for serial/Ethernet/power lines

Terminal ServerCN2600 Series 8 and 16-port RS-232/422/485 terminal servers with LAN redundancy

Combo Switch/Serial Device ServerNPort® S8000 Series 4-port RS-232/422/485 serial device server with built-in 5-port managed Ethernet switch

4

Product Offerings

IEEE 1588 v2-based Technology to Synchronize the Sampled Values

4 Tele-control Communication Computer• Support for 4 to 6 LANs• High performance processor required• High system reliability and fanless design• IEC 61850-3 certified

5 Backend Host• HMI interface/display function• Control function • SCADA software support • Powerful processing ability

Tomorrow’s substation automation systems will increase electric efficiency and uptime by improving monitoring and troubleshooting capability. Moxa’s IEC 61850 Ethernet switches provide critical real-time network connec-tions between the substation and power system.

Multi-port Mirroring

The World’s First IEC 61850-3-certified Rackmount ComputerTo ensure a high level of power substation reliability, Moxa’s DA-681 meets IEC 61850-3 substation certification - the first embedded computer in the world to do so. • Strong EMC protection• -40 to 75 °C wide operating

temperature• Resistant to vibration and shock

x86-based Rackmount Embedded ComputersDA-710 2 serial ports, quad LANs, VGA, 4 DIs, 4 DOs, USB, and 4 peripheral expansion slots

DA-681 4 isolated RS-232 and 8 isolated RS-485 ports, 6 LANs, VGA, CompactFlash, USB, IEC 61850-3 certified (DPP model only)

DA-682 VGA, 4 Gigabit Ethernet ports, 2 periph-eral expansion slots, CompactFlash, USB

RISC-based Rackmount Embedded ComputersDA-660/661/662/662-I 8 or 16 serial ports, Ethernet LANs, PCMCIA, CompactFlash, USB

Redundant COM with Zero Switching TimeThe “Redundant COM” operation mode can be used to set up a redundant LAN between the CN2600’s COM ports and the host computer. If either of the two LANs fails, the other LAN will continue transmitting packets between the serial devices and the host through the CN2600. The switching time in Moxa’s redundant COM mode is zero, which means that if one of the LANs fail, data transmission between the PC host and the serial devices will not be interrupted.

Optical Fiber Twisted Pair Serial

Station Bus

Process Bus

Process Level

Bay Level

Station Level

500/220 kV Substations in China

400 kV Substation in Africa

Requirements

Why Moxa?

Products

• PT-7728 IEC 61850-3 24+4G-port rackmount modular managed Ethernet switches

Requirements

Why Moxa?

Products


China’s State Grid Corp.

Efacec

Power T&D Success Stories

Enabling High Availability and Reliability for SAS

5 7

Power T&D Application Solutions

Manageability Stay in Control of Your Power Distribution Networks with Industrial NMS

Monitor Your Valuable Assets 24/7

Improved Flexibility and Advanced RedundancyMoxa Turbo Chain - Highly Resilient for Complex Power Distribution Networks

Auto Topology Visualization

Remote Device Management Real-time Event Management

Comprehensive Performance Reports

Substation Connectivity and Distribution Automation

Precise Time SynchronizationIEEE 1588 v2-based Technology to Synchronize the Sampled Values on the Substation Process Bus In IEC 61850-9 operations, digital CTs and PTs provide measured values of current and voltage through MUs to bay level IEDs with the process bus. In any given system there may be a great number of MUs operating at once. These different streams of sampled values must be accurately time-synchronized before they can be used.SNTP is able to provide synchronization accuracy within about 1 ms. However, this is not precise enough for raw data sampled values. Moxa’s PT-7728-PTP IEC 61850-3 fast Ethernet switches support the latest version of IEEE 1588 v2 technology to fulfill precise time synchronization requirements for protection and control applications. These Ethernet switches guarantee time-stamping accuracy within 1μs for the IEC 61850 process layer. They can be configured for 1558 v2 Master, Boundary Clock, and Transparent Clock functionality.

Constant on-site management and maintenance is impractical in an application as large as a typical power distribution networks. Administrators need network management software to help diagnose the health of the network, preemptively fix problems, and reduce the time expended on troubleshooting large-scale networks.Moxa’s MXview industrial network management software is designed to analyze, monitor, configure, and troubleshoot the remote network connections formed by Moxa’s managed Ethernet switches and industrial wireless AP/Bridge/Clients, as well as other SNMP networked devices for industrial automation. It visualizes the physical wiring map of your network via a simple, user-friendly web browser UI for remote management. You can easily track real-time network status, identify failure points , and reduce the troubleshooting response time of complex and critical network operations with MXview.

Increased Availability A substation Ethernet LAN is an integral part of a mission-critical protection and control systems. These systems must perform extremely reliably to create a reliable and non-stop communication network, as well as to optimize and prioritize the data communications between systems.

Enhanced ReliabilityZero Packet Loss Under Harsh EMI StressWhen high voltage circuit breakers open or close they generate extremely strong electromagnetic fields in their vicinity. High voltages When high voltage circuit breakers open or close they generate extremely strong electromagnetic fields in their vicinity. High voltages and very large currents are involved in these events. It is exactly at these moments when EMI is the strongest that the Ethernet and very large currents are involved in these events. It is exactly at these moments when EMI is the strongest that the Ethernet network is most critical and must operate flawlessly to insure that the protective relay function occurs. Moxa’s PowerTrans Ethernet network is most critical and must operate flawlessly to insure that the protective relay function occurs. Moxa’s PowerTrans Ethernet switches are designed to work reliably without experiencing any communications loss under a variety of EMI phenomena commonly switches are designed to work reliably without experiencing any communications loss under a variety of EMI phenomena commonly found in substations. found in substations.

Adding Intelligent Codes Creates Exceptionally Efficient and Reliable networksTwo heads are better than one. Adding locally intelligent nodes can create networks of exceptional efficiency and reliability. Without Two heads are better than one. Adding locally intelligent nodes can create networks of exceptional efficiency and reliability. Without Moxa’s solutions, substation control centers often have four different parallel systems—the protection management server, SCADA host, five-point prevention system, and a data logger server. By using Moxa’s DA-710 x86-based embedded computer, all of the systems were integrated into a single central management system. It also functions as a substation back-end host to ensure availability for personnel at the remote dispatch control center.

IEC 61850-based Substation Automation SystemIEC 61850 standard has world-wide acceptance IEC 61850 standard has world-wide acceptance from various utilities and manufacturers. The standard from various utilities and manufacturers. The standard offers interoperability, overall cost saving, and simple offers interoperability, overall cost saving, and simple architecture. However, in order to realize these benefits, architecture. However, in order to realize these benefits, thoughtful Substation Automation System (SAS) design thoughtful Substation Automation System (SAS) design engineering is required which can address the challenges engineering is required which can address the challenges for practical implementation.for practical implementation.

Discover Moxa’s Business BenefitsSubstations are extremely demanding environments, so the Ethernet networks that operate in them must Substations are extremely demanding environments, so the Ethernet networks that operate in them must be rugged enough to deliver high communications reliability, availability, and uptime. To meet the strict be rugged enough to deliver high communications reliability, availability, and uptime. To meet the strict requirements of substation operations, Moxa has introduced IEC 61850-3 and IEEE 1613 compliant Ethernet requirements of substation operations, Moxa has introduced IEC 61850-3 and IEEE 1613 compliant Ethernet switches, industrial embedded computers, and secure terminal servers for connecting legacy devices.switches, industrial embedded computers, and secure terminal servers for connecting legacy devices.

Non-stop Operation• Turbo Ring media redundancy with faster ring recovery (20 ms with 250 switches)• Isolated redundant power inputs at 24/48 VDC or 110/220 VDC/VAC• -40 to 85°C operating temperatures (no fans)

Enhanced Determinism for Data Transmission• IEC 61850-3 and GOOSE messaging (KEMA tested)• GMRP, IGMP snooping, and VLAN• Fiber-optic Gigabit Ethernet

Today, utility systems have not only grown larger and more numerous, they have also forged connections between one another and with remote facilities such as substations. This distribution system carries electric power from the transmission system and delivers it to consumers. Consequently, a typical power distribution system consists of a complex network with many power utility connections.

Fast Recovery Fast Recovery (< 20 ms)

Saves InstallationCost and Time

Easy Extension(Can Link to STP, RSTP, Turbo Ring, Turbo Chain)

Monitor Your Valuable Assets 24/7

• Isolated redundant power inputs at 24/48 VDC or 110/220 VDC/VAC

Pas

s KEMA Test

Moxa’s innovative breakthrough Turbo Chain technology offers a highly flexible self-healing Ethernet technology solution for extremely complex power distribution networks. It allows the creation of multiple redundant networks beyond the current limitations of redundant ring technology.

Turbo Chain is easy to configure by linking two user-configured end ports within the same segment. Turbo Chain™ easily connects and extends existing redundant networks by enabling high network availability with its self-healing capability (recovery time < 20 ms). Moreover, compared with Turbo Ring in power distribution systems, Turbo Chain is more flexible and cost-efficient and has the potential to save a significant amount on development costs, time, effort, cabling, and Ethernet ports.

• Fast fault recovery < 20 ms • Flexible, unlimited redundant network expansions • Live node expansion without system interruptions • Enormous savings on cabling costs

Product Offerings


4 Tele-control Communication Computer

5 Backend Host


The World’s First IEC 61850-3-certified Rackmount Computer





Redundant COM with Zero Switching Time

8


Station Bus

Process Bus


Station Bus

Process Bus

Process LevelFacilitates the time-critical Facilitates the time-critical communication between communication between protection and control IED to protection and control IED to the process, such as sampled the process, such as sampled values, binary status signals.values, binary status signals.

Bay Level Protects and controls different Protects and controls different bay IEDs

Station LevelFunctions that include Functions that include more than one bay are more than one bay are performed at this levelperformed at this level

500/220 kV Substations in China

400 kV Substation in Africa

Requirements

Why Moxa?

Products


Requirements

Why Moxa?

Products



Efacec



Product Offerings


4 Tele-control Communication Computer

5 Backend Host


The World’s First IEC 61850-3-certified Rackmount Computer





Redundant COM with Zero Switching Time


Station Bus

Process Bus

Process Level

Bay Level

Station Level

500/220 kV Substations in ChinaThe State Grid Corporation of China (SGCC), the largest electric power transmission and distribution company in China, employed PT-7728 IEC 61850-3 Ethernet switches for use in substation automation and Smart Grid applications. Hundreds of PT-7728 were installed in 500/220 kV high voltage substations to create highly reliable communications networks in harsh electric utility substation environments. The PT-7728 series emerged as the clear leader after a rigorous and extensive selection process that evaluated several potential global suppliers of substation-hardened industrial networking equipment. Selection criteria included exacting requirements such as EMI shielding that can deliver error-free performance in a variety of destructive EMI stress scenarios.

400 kV Substation in AfricaEfacec is the largest provider of energy, engineering, and transportation solutions in Portugal; they employ around 4000 people and has a yearly revenue of almost 500 million Euros. As part of a modernization program for 400 kV substations, Efacec deployed Moxa’s PT-7728 IEC 61850-3 Ethernet switches in the transmission substation automation system. These switches connect with protection relays and other intelligent electronic devices (IED), and also form a ring topology that is highly self-healing in the event of a network failure. Several PT-7728 Ethernet switches connect to the local SCADA monitoring server and redundant substation central units so that system operators can efficiently monitor operations at field sites. The PT-7728 switches come with four Gigabit ports to power high bandwidth networks and provide the capacity necessary for a redundant ring uplink backbone, with a spare port available for uplink to the core switches. The modular rackmount design with rear cabling simplifies installation and maintenance.

Requirements• Zero packet loss under harsh EMI interference• IEC 61850 compliant networking devices

Why Moxa?• Zero packet loss in communications• Real-time fault recorder for better

troubleshooting• IEC 61850-3 and IEEE1613 compliant (Tested

by KEMA)• Reliable operations under extreme temperature

variations

Products


Requirements• Non-stop operation for mission-critical

applications• Network devices that are IEC 61850-3 and • Network devices that are IEC 61850-3 and

IEEE 1613 compliant • Modular rackmount capacity and rear

cabling with front display for ease of installation and maintenance

Why Moxa?• Isolated redundant power input with 88 to

300 VDC and Turbo Ring redundancy with fast recovery (< 20 ms with 250 switches) for fast recovery (< 20 ms with 250 switches) for high network availability

• IEC 61850-3 and IEEE1613 certified (tested • IEC 61850-3 and IEEE1613 certified (tested by KEMA)

• High EMI resistance without experiencing any communications loss

• Flexible installation for front or rear cabling method

Products


9


Efacec



Substation Modernization for an Aluminum Smelter PlantA transmission company supplied three 132 KV power transmission lines to an aluminum smelter plant, each with its own power substation to convert the electrical energy for use in the smelting process. The existing network infrastructure was hub-based Ethernet and the network design was not redundant. In order to improve the reliability of the system, the operator sought to modernize the entire automation network, including a substation automation network that was originally installed in 2000.

Substation Automation for a German CityA German utility company supplying electricity and services needed a reliable solution for their power grid. The company, with around 2500 employees, is responsible for roughly 530,000 subscribers, all of whom need constant, around-the-clock power. The utility company sought to create a resilient grid that could sustain a blackout at one substation without impacting other substations by deploying Moxa’s PT-7728 to each substation in a star topology. Furthermore, by standardizing around a single Ethernet switch model in the control center, small substations, and large substations, the customer saved maintenance costs on replacement parts and units.

RequirementsBuild star network on top of the existing substation backbone to have direct connection to each substation in backbone to have direct connection to each substation in case of a blackout.

Why Moxa?Moxa was able to provide a versatile solution with just one Moxa was able to provide a versatile solution with just one product that offers multiple different configurations. Using product that offers multiple different configurations. Using just one model of Ethernet switches reduces maintenance just one model of Ethernet switches reduces maintenance complexity and costs. Moxa’s software also offered key competitive advantages; simple and straightforward, it also unlocks future expansion with Turbo Chain upgrades also unlocks future expansion with Turbo Chain upgrades in the future. Non-redundant stars can be reconfigured to in the future. Non-redundant stars can be reconfigured to redundant Turbo Chains.

Products


• ABC-01 Configuration backup and restoration tool for managed Ethernet switches

Requirements• A redundant Ethernet infrastructure with secure data communication• Network devices that are IEC 61850-3 and IEEE 1613 compliant to ensure reliable operations in the harsh electrical environment• Ethernet switches with modular connectivity to make PLC upgrades and configurations easier

Why Moxa?• Moxa Turbo Ring redundancy with fast

recovery (< 20 ms with 250 switches)• The PT-7828 Layer 3 Ethernet switches

support IP routing protocols• Moxa’s PowerTrans series Ethernet

switches are IEC 61850-3 and IEEE 1613 switches are IEC 61850-3 and IEEE 1613 certified (tested by KEMA)

• With the modular construction of the PowerTrans Ethernet switches, future upgrades will be effortless

Products

• PT-7828 L3 IEC 61850-3 24+4G-port modular managed Ethernet switches

• PT-7728 L2 IEC 61850-3 24+4G-port modular managed Ethernet switches

• PT-G7509 L2 IEC 61850-3 9G-port standalone managed Ethernet switches

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Germany

Africa

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Reliable Unmanned Power Substation Automation in China

BackgroundA steel plant in China deploys embedded computers to upgrade unmanned power substation. In 2006, the steel output of this steel plant in China was more than 12 million tons and ranked 6th in the nation. In 2007, they merged with other plants and became one of the top 3 steel producers in China. Despite a rapidly expanding business with over 100 power substations, they lacked a proper communication computer for data processing, relying instead on IPCs and multiport serial board connections for data acquisition. However, the IPC system had several problems including instability, processing inefficiency, and constant maintenance. Looking ahead, the customer decided to adopt embedded computers ensure reliability for their unmanned substation automation.

In fact, power substations use a variety of devices for transmitting and distributing power. In order to keep the operation running smoothly, it is absolutely essential to set up a reliable device monitoring system. In the past, engineers monitored device performance themselves, but this is a costly and unreliable solution since it takes time for engineers to locate which devices have failed. A more reliable solution would be to synchronize the management of different parts of the substation by channeling monitoring signals from all parts of the substation to one central location. In recent years, power substations have migrated to using automated monitoring systems.

System SolutionsThe steel company decided to install Moxa’s DA-662 and UC-7408 embedded computers to ensure the reliability of their unmanned substation automation networks. The embedded computers are not only used for protocol conversion, but also function as front-end communication computers for data acquisition, processing, and transmission back to the control center.

Requirements

Why Moxa?• Fanless, cableless, no hard drive, and low • Fanless, cableless, no hard drive, and low

power consumption design offers a reliable power consumption design offers a reliable solution for substation automationsolution for substation automation

• Ready-to-run platform • Ready-to-run platform provides greater flexibility, provides greater flexibility, multi-level open data multi-level open data transmission, and stability transmission, and stability for easy integration with third-for easy integration with third-party devices

• Moxa’s embedded computers • Moxa’s embedded computers use software to provide use software to provide ready and effective protocol ready and effective protocol conversions that facilitate conversions that facilitate data communication between data communication between legacy devices using a variety legacy devices using a variety of protocols

• Rackmount design for easy • Rackmount design for easy installation and system installation and system management

• Pre-installed real-time • Pre-installed real-time operating system for quicker operating system for quicker system response

• DA-662 or UC-7408 • DA-662 or UC-7408 conversions that facilitate web conversions that facilitate web server for remote monitoringserver for remote monitoring

Products

• DA-662 RISC-based 19-inch rackmount data acquisition computer with 16 serial ports, quad LANs, PCMCIA, CompactFlash, USB

• UC-7408 RISC-based data acquisition computers with 8 serial ports, 8 DI/DO channels, dual LANs, PCMCIA, CompactFlash

• Front-end communication computer for data processing and protocol conversions

• Ability to handle multiple devices using different protocols for data communication

• Quick system response

• Defense against strong onsite EMI/EMS fields• Support for 110/220 VAC and VDC power inputs• Long MTBF to enhance system reliability• Multiple built-in Ethernet ports for network redundancy to

ensure system reliability and continuous operation

China


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Flexible Turbo Chain Technology for Guangzhou City’s Smart Power Distribution Networks

BackgroundGuangzhou is the third largest city in China and the capital of Guangdong Province, southern China’s largest city and a key transportation hub. With a population of eight million people in an area of over 16,000 square kilometers, it is the most populous city in the province and the third most populous metropolitan area in China. Guangzhou discovered that the reliability of Moxa’s PowerTrans IEC 61850-3 Ethernet switches was perfect for its demanding smart distribution automation project. Guangzhou’s power distribution system consists of a complex web of power utility network connections over several districts, with correspondingly complex wiring requirements. It was time to look at new technologies that would enable high-value, efficient and reliable operations to address the critical factors found in large-scale power distribution automation projects.

Moxa’s SolutionsMoxa’s breakthrough Turbo Chain redundancy technology dramatically simplifies the creation of multiple redundant connections over a widely dispersed power distribution network. With Turbo Chain, PowerTrans Ethernet switches can be daisy-chained together from one Ring Main Unit (RMU) to another, with each “chain” connected to the distribution substations. If a chain segment fails, the blocked path will rapidly activate within 20 milliseconds to ensure high network availability. Moxa’s breakthrough Turbo Chain flexible redundancy technology frees system builders from the costly limitations of conventional ring architecture. Compared with conventional ring topology, Turbo Chain eliminates the need for kilometers of extra cable and additional Ethernet ports to form ring coupling paths. In addition, the PowerTrans PT-7828 Layer 3 Ethernet switches also support Open Shortest Path First (OSPF), which uses “link state” instead of “hop count” to determine the network route. Compared to Routing Information Protocol (RIP), OSPF has faster network convergence and consumes less network traffic.

Requirements• High network availability to ensure proper electricity transmission over different districts• A cost-effective network architecture to simplify network connections over a far-ranging power distribution network • Reliable performance under extreme temperatures • Layer 3 switching capability for large scale networks

Why Moxa?• Using Moxa Turbo Chain saves a significant amount on development cost, time, effort, cabling, and Ethernet ports over an extensive

power distribution network.• Beyond the limitations of conventional redundant ring technology, Moxa’s Turbo Chain addresses the challenging environment found

in complex power distribution network connection and enables high network availability with its self-healing capability (recovery time < 20 ms).

• Moxa’s PowerTrans series is designed for fanless operations in a wide temperature range of -40 to 85ºC.• Moxa’s PT-7828 Layer 3 Ethernet switches support Open Shortest Path First (OSPF) to improve traffic flow and network efficiency.

Products

PT-7828 IEC 61850-3 Layer 3 24+4G-port rackmount modular managed Ethernet switch

PT-7710 IEC 61850-3 8+2G-port modular managed Ethernet switch

Industrial Networking and Computing Products:• Industrial Ethernet Switches• Industrial Wireless Products• Remote I/O• Industrial Media Converters• Industrial IP Video Solutions• Serial-to-Ethernet Products• Industrial Computing Products

Moxa HeadquartersFl.4, No.135, Lane 235Pao-Chiao Rd., Shing-Tien CityTaiwan, R.O.C.Tel: +886-2-8919-1230Fax: [email protected]

© 2010 Moxa Inc., All Rights Reserved.The MOXA logo is a registered trademark of Moxa Inc. All other logos appearing in this brochure are the intellectual property of the respective company, product, or organization associated with the logo.

Moxa AmericasToll Free: 1-888-MOXA-USA(1-888-669-2872)Tel: +1-714-528-6777Fax: [email protected]

Moxa EuropeTel: +49-89-3 70 03 99-0Fax: +49-89-3 70 03 99-99www.moxa.comwww.moxa.com/dewww.moxa.com/[email protected]

Moxa Asia-PacificTel: +886-2-8919-1230Fax: +886-2-8919-1231www.moxa.comwww.moxa.com.twjapan.moxa.comasia@moxa.com

P/N: 1900001001510

Moxa [email protected]

Shanghai OfficeTel: +86-21-5258-9955Fax: +86-21-5258-5505

Beijing OfficeTel: +86-10-6872-3959/60/61Fax: +86-10-6872-3958

Shenzhen OfficeTel: +86-755-8368-4084/94Fax: +86-755-8368-4148

Founded in 1987, Moxa is a total quality (ISO 9001:2000 and ISO 14001 certified) manufacturer of industrial communications solutions designed for continuous, reliable, and long-term operations in even the harshest industrial settings. One specific dimension of Moxa’s expertise is application-specific solutions, including Class I, Div 2/Zone 2 solutions for hazardous locations, DNV/GL solutions for marine use, IEC 61850-3 and IEEE1613 solutions for substation, NEMA TS2 for road traffic, EN50155 and EN50121-4 for rail traffic, and more. These approvals guarantee high adaptability to any severe condition, such as vibration and shock, humidity, extreme temperatures, strong electromagnetic fields, a corrosive atmosphere, or explosive hazards.

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Automating Substation and Distribution Systems for a Smarter Grid · 2010-08-05 · Automating...

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