Microgrid Test Bed Implementation at the PPL Electric Utilities Power Lab
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Transcript of Microgrid Test Bed Implementation at the PPL Electric Utilities Power Lab
Microgrid Test Bed Implementation at the PPL Electric Utilities Power Lab
Peter Idowu, Ph.D., P.EMicrogrid Development Team: Joyer Lobo – MSEE student (Laboratory Implementation)Ameya Chandrayan – MSEE student (Laboratory Implementation)LE B. Chen (Brandon) – MSEE student (MAS-based control and Co-simulation)Sri Jagannathan – MSEE student (Function Block based control) Lucas McCoy – MSEE student (Mesh communication network performance)Lavinia Pintuita – M.Eng. EE student (PSH conceptual Testbed in ETAP)Three new graduate students joining in the Fall 2014 semesterFaculty advisors with backgrounds in communications, computer security, etc.
Presentation outline
• The Legacy electric power grid• The Smart Grid• The Microgrid• Microgrid test facilities• The Microgrid at PPL Electric Power Lab
The Legacy Electric GridFigure at http://upload.wikimedia.org/wikipedia/commons/5/56/Electricity_grid_schema-_lang-en.jpg
What is the Smart Grid?
A construct that is expected to embrace all the following:1. Assess grid health in real time (ss-dynamic-transient stability, …)2. Predict and anticipate behavior (load, faults, resource availability, …)3. Adapt to new environment (DGRs, storage, smart loads, etc.)4. Handle stochastic demand-response requirements of smart loads5. Provide self-correction, reconfiguration, and restoration (protection, …)6. Handle random nature of demand and market participation in real-time7. Create environment for interactive exchanges between intelligent
devices, communication protocols, smart algorithms, transportation systems
One of many possible definitions …
• “The smart grid is an advanced digital two-way power flow power system capable of self-healing, adaptive, resilient, and sustainable, with foresight for prediction under different uncertainties. Equipped for interoperability with present and future standards for components, devices, and cyber-secured against malicious attack” – James Momoh, Howard University, DC
National Institute of Standards and Technology (NIST) Smart Grid Conceptual Model
http://smartgrid.ieee.org/ieee-smart-grid/smart-grid-conceptual-model
Microgrid
• … if the Smart Grid is a wide area power provider with sophisticated automated decision support structures, the Microgrid is a local power provider with limited advanced control tools …
• Microgrid - “ … a group of interconnected loads and distributed energy resources within clearly defined electrical boundaries that acts as a single controllable entity with respect to the grid and that connects and disconnects from such grid to enable it to operate in both grid-connected or island mode.” - State of Connecticut Public Act No. 12-148
Purpose of microgrid test facilitiesConsortium for Electric Reliability Technology Solutions (CERTS) Test Bed
The objective of the large scale CERTS Microgrid Test Bed -1. Enhance the ease of integrating small energy sources into a microgrid2. Significantly reduce the level of custom field engineering needed to
operate microgrids3. Demonstrate advanced techniques collectively referred to as the CERTS
Microgrid concept: a. Effecting automatic and seamless transitions between grid-
connected and islanded modes b. Coordinate protection within the microgrid without depending
on high fault currentsc. Achieve stability and microgrid control of voltage and frequency
under islanded conditions without high-speed communications
Purpose of microgrid test facilitiesFlorida International University’s Smart Power System
Florida International University’s Smart Power System
• Model realistic behavior of a large power system• Use setup for research and for teaching power systems concepts –
– phasor measurement units (PMU), – grid integration of distributed energy resources (DER), – intelligent protection and control, – hybrid ac-dc systems– etc.
Goals for the PPL Lab Microgrid• Interaction of simulated transmission network with hardware-based
microgrid• Environment to facilitate power system co-simulation• Multi Agent System (MAS) based distributed operation of power
system, including protection coordination, microgrid control, demand-side load management, load signature studies
• Demand-side dynamic load modeling• Power system stabilizer design• Performance of ZigBee mesh networks, other topologies• Distributed resources and storage integration• Network control with utility grade digital relays and synchrophasors• Smart grid security in collaboration with computer science group
Resources
• Our smart and very well motivated students• SEL and Novatech digital relays and IEDs• Orion LX and SEL-RTAC Automation controllers• Omicron relay test set• dSPACE hardware-in-the loop development system• SMA industrial grade bidirectional inverter(s)• MG set with industrial grade excitation system• Silicon Labs EM357 development system, IAR compiler• Smart meters, sensors, transducers, • Controllers, high performance PCs• Software systems – ETAP, MATLAB, JADE, ZEUS, etc.
Questions