IDS-20 next generation ICE DETECTION SYSTEM for wind power...
Transcript of IDS-20 next generation ICE DETECTION SYSTEM for wind power...
IDS-20 next generation
ICE DETECTION SYSTEM for wind power industry
한국대리점
길우트레이딩서울특별시 영등포구 선유로 33길 15, 703호(양평동 3가, 에이스테크노타워)02)2636-0009(대) 02)2636-4753(팩스)[email protected] www.gilwoo.co.kr
SOM ME R was founded in 1987 and
provides more than 30 years experience
in development and production of high
quality and innovative measurement
equipment for hydrology and
meteorology.
Som mer is active internationally with
distributers in more than 60 countries
worldwide.
SOM ER opened its first overseas
office in 2018 in Kula Lumpur, Malaysia.
History - Sommer
SOMMER Headquarters
SOMMER production facility – opened May 2015
History - Sommer
SOMMER began 30 years ago with the production
of data acquisition and logging systems. Soon after,
SOMMER kick-started the development of its first
snow measurement and analysis systems.
SO MMER has used its world-leading technology
and experience in snow-pack analysis to develop a
unique ice detection system.
3) SOMMER headquarters in western Austria
Sommer Snow Pack analyzer installed in
Kirgizstan (top) and in Antarctica
(bottom). High quality instruments for the
roughest conditions.
IDS-20 Installed at Vienna Airport
The IDS-20 is a unique ice
detection system used in
different applications.
Information - Sommer
SOMMER headquarter is located in
western Austria, the heart of Europe, in
the border region of Austria, Germany and
Switzerland.
The location in the European Alps provides
the possibly to study the effects of ICE in
our daily life.
SOMMER is a family owned company
with excellent reputation. Customer focus,
reliability, excellent service and high-end
products are our commitment to you.
SOMMER headquarters in western Austria
Switzerland
In Winter, 60 % of the Northern hemisphere is covered with snow.
But, the area with risk for icing, is much larger.
Very often Icing occurs in areas where warm, humid air form the south collides with cold, dry
air from the north. This not necessarily happens in snow-covered areas.
Introduction
Main problems with icing in the Wind power
industry:
Shutdown of turbines
Loss of power production
Loss of aerodynamics
Vibrations
Increased maintenance
Danger of ice-throw
Icing related shutdowns cause more loss of energy
production than shutdowns in warm locations.
Introduction
Introduction
Why is a reliable and accurate ice detection system
important?
Prevent or reduce shutdowns
Switch on blade-heating only when necessary
Avoid damage caused by vibrations
Protect people
Save money
The unique Technology of the IDS-20 can detect
92%* of all icing events.
(*Value reached in internal field tests)
ICE DETECTION SYSTEM
IDS-20
Ice detection system - System components
Ice-sensors
• Ice and water content
• Ice thickness (from 0.1mm to
5mm)
• Sensor surface temperature
IDS Sensor
surface
Ice
Meteorological variables
• Air temperature
• Air humidity
IDS-Controller
• Possibility to connect 1 or 2
sensors
• Recognition of ice and icing-
rate
• Frost point, dew point
• Verification of detected icing
with meteorological variables
• Interface for system
integration
Electric
field
(5mm)
Ice detection system - Schema
Separation of
ice and water
Ice
sensor
Ice point
Dew point
Air temp.
Air humidity
Verification
and
plausibility
check
Instrumental icing Metrological icing
IDS Controller
System control
Supply 10-30 V
Heating 24 V AC
Camera (optional)
Data logging and
Data transmission (optional)
ModBus RTU
RS-485
SDI-12
CANopen
(via converter)
optional
optional
Two step measurement principle
Ice detection system - interfaces
Very easy system integration
– SDI-12
– RS-485 ASCII-Protocol
– RS-485 MODBUS
– 3 Relay outputs
• A = ice, water or icing rate exceed limit value
• B = ice, water or icing rate exceed limit value
• C = control relay (system ok – self check)
Additional PLC integration (optional)
– CANopen, PROFIBUS, PROFINET, EtherCAT
• via converter
SOMMER data logger connection (optional)
– CSV-file transfer via mobile internet or satellite
– Periodic image transfer from on-site camera
– Remote access to sensor and data logger
– Remote access via Android app
– SOMMER MDS Cloud
Ice detection system
Advantages of IDS-20:
2-step measurement to reach excellent reliability. The IDS-20
will detect more than 92% of all icing events.
Real-time measurement and discrimination of ice and water
as well as transformation form water to ice
Very easy interpretation of measurements with simple
relay functions
Easy integration into control systems and retrofit of older
systems
Short, optimized heating cycles
Actual ice thickness
Not affected by ambient interferences
Detection of extremely thin ice layers for early warning
Easy and flexible mounting on sensor rack
The IDS-20 is the only ice detection system that can reliably
distinguish water and ice.
Ice detection system – Advantages
Option to measure heavy ice loads with the
IDS-20:
Additional sensor connected to IDS-20 system
Rod-80 sensor can measure ice thickness from
1mm to 80mm
Information about heavy ice loads on tower and nacelle
Additional to the Cube-5 sensor the Rod-80 sensor provides
information about the total ice thickness on non-heated parts
of the wind turbine.
Ice detection system – Advantages
DATA ANALYSIS
(APPLICATION EXAMPLES)
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Example:
Effect of dew point and surface
temperature on the transformation of
water to ice.
Thin to medium ice layers
IDS-20 with Cube 5 sensor
Measuring range: 0.1 ... 5 mm
The Sensor surface temperature falls
below the dew point temperature.
Condensation starts (water still liquid)
mm
Application
Suddenly, water freezes!
Icing limit is exceeded
Relay is switched to ON
mm
Application
Ice is growing slower
Relay is switched to OFF
mm
Application
Ice is accumulating faster again
Icing limit is exceeded
Relay is switched to ON
mm
Application
Ice has reached maximum thickness
Sensor heating is turned on
until ice has melted and the
sensor is dry again, ready for
the next measurement cycle
mm
Application
The Sensor surface temperature falls
below the dew point temperature.
Condensation starts (water still liquid)
mm
Application
Suddenly, water freezes!
Icing limit is exceeded
Relay is switched to ON
mm
Application
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Example:
Icing events on wind turbine over a
period of 2 month
thin to medium ice layers
IDS-20 Cube 5 sensor
Measuring range: 0.1 ... 5 mm
Heating cycles
Icing events during 11. February – 11. March 2017
Ice content Cube sensor
Status B: more Ice than threshold Status A: Icing
Temperature Frost point Humidity
Icing events
Humidity 100%
Low Temperature
Date Time
12.02.2017 09:00
Ice content Cube sensor Water content Cube sensor
Status B: more Ice than threshold Status A: Icing
Several small icing-events
have formed ice on the turbine
Relay A output: Icing
ice is growing
Relay B output: Threshold
Ice thickness has exceeded limit value
Date Time
12.02.2017 13:00
Ice content Cube sensor Water content Cube sensor
Status B: more Ice than threshold Status A: Icing
Date Time
13.02.2017 08:00
Ice content Cube sensor Water content Cube sensor
Status B: more Ice than threshold Status A: Icing
After a long period of icing, massive
ice build-up on the wind turbine
Cube sensor of the IDS has no ice
because of smart heating system
Date Time
13.02.2017 10:00
Ice content Cube sensor Water content Cube sensor
Status B: more Ice than threshold Status A: Icing
Date Time
13.02.2017 19:00
Ice content Cube sensor Water content Cube sensor
Status B: more Ice than threshold Status A: Icing
No icing events
Relay A output: Icing
switched off
Extremely short heating cycles thanks to smart heating system. Sensor only heats until surface
is dry and then sensor cools down again.
Status B: more Ice than threshold Status A: Icing
Ice content Cube sensor
Temperature
Extremely short heating cycles thanks to smart heating system. Sensor only heats until surface
is dry and then sensor cools down again.
Status B: more Ice than threshold Status A: Icing
Ice content Cube sensor
Temperature
Ice has reached max. ice
thickness, heating starts
Sensor is dry,
heating stops
New ice is formed
on the sensor
Heating cycle is less than
3 min. (depending on the ice
thickness)
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Example:
Accumulation of ice over one month
due to small icing events
Small icing-rates and total ice thickness
IDS-20 Cube 5 sensor
ROD-80 Sensor (Optional)
Measuring range: 0.1 ... 80 mm
Reference plate
Application – Diedamskopf (Austria)
Icing and total ice thickness
Date Time
28.02.2017 14:30
Ice thickness Rod sensor Water content Rod sensor
Ice thickness Cube sensor
No ice
Currently no icing condition
Application – Diedamskopf (Austria)
Icing and total ice thickness
Date Time
01.03.2017 14:30
Ice thickness Rod sensor Water content Rod sensor
Ice thickness Cube sensor
Icing event 10mm of ice
Currently no icing condition
Application – Diedamskopf (Austria)
Icing and total ice thickness
Date Time
02.03.2017 13:30
Ice thickness Rod sensor Water content Rod sensor
Ice thickness Cube sensor
Icing event
40mm of ice
Application – Diedamskopf (Austria)
Icing and total ice thickness
Date Time
02.03.2017 17:00
Ice thickness Rod sensor Water content Rod sensor
Ice thickness Cube sensor
Weather has changed
Ice starts to melt
Application – Diedamskopf (Austria)
Icing and total ice thickness
Date Time
03.03.2017 07:00
Ice thickness Rod sensor Water content Rod sensor
Ice thickness Cube sensor
Weather got warm
All ice melted off
Ice fell off the sensor
SUMMARY
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Summary
Ice detection system:
Controller unit + sensor + meteorological measurement
Different IDS-Sensors available and combinable
Configurable for different applications and business fields
Summary
Detection of Icing and icing conditions:
Measurement of metrological and instrumental icing
Measurement of ice thickness from 0.1mm to 0.5mm (Wind
power application), optionally up to 80mm
Detection of water, ice and freezing rain on surfaces
Very reliable and repeatable measurements due to the use of
two independent measurement methods with integrated
plausibility check
Summary
Detection of Icing and icing conditions:
Self check
Easy system integration
Heating included
Combinable with remote access unit
(including data logging and data transmission)
Visual site monitoring with camera (optional)
Any Questions?
Thank you for your attention!