Zertifizierung von WEA auf Prüfständen: Von der Forschung in die Richtlinien - Branchentag ...
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Zertifizierung von WEA auf Prüfständen:
Von der Forschung in die Richtlinien
Dr. Uwe Jassmann
Managing Chief Engineer
1 Zertifizierung von WEA auf Prüfständen - von der Forschung in die Richtlinien
12. Branchentag Windenergie NRW | Wissenschaftspark Gelsenkirchen | 27.-28. August 2020
Dr. Uwe Jassmann
Agenda
• Nacelle System Test Benches – Overview and Motivation
• Mechanical-level HiL for Test Benches
• Validation of HiL by means of Certification Measurements
• Summary and Outlook
2 Zertifizierung von WEA auf Prüfständen - von der Forschung in die Richtlinien
12. Branchentag Windenergie NRW | Wissenschaftspark Gelsenkirchen | 27.-28. August 2020
Dr. Uwe Jassmann
Nacelle System Test Benches
Overview and Motivation General
Benefits / Goals
Testing of complete nacelle before installed in the
field (System Integration Test)
Freely definable and reproducible test conditions
Certification measurement campaigns compliant
with grid codes (CertBench)
© RWTH Aachen
Prime Mover
Test Bench Properties
Prime Mover Grid Emulator
– 4MW rated Power – 21MVA rated Power
Wind Load Unit – 3.4MNm max. Torque – Freq. Range 48-52Hz
Nacelle – … – …
3 Zertifizierung von WEA auf Prüfständen - von der Forschung in die Richtlinien
12. Branchentag Windenergie NRW | Wissenschaftspark Gelsenkirchen | 27.-28. August 2020
Dr. Uwe Jassmann
Nacelle System Test Benches
History: Test Benches, Research Projects, Guidelines
CWD 1MW CWD 4MW Research
Test Bench Test Bench Wind Turbine
CWD
1st HiL-Test HiL-Test Commercial HiL-Test
Vestas V52 2.7MW WEA ext. HiL-Test Enercon
2011 Aerodyn
91b propos. Wind Turbine
2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020
Start Adapt. Techn. Start Adapt. IEC
FVA-Gondel Guideline TR3 CertBench 61400-21-4
Vestas LORC Clemson LORC LORC
(20MW) (10MW) (15MW) (10MW) (25MW)
Clemson Fhg IWES
(7,5MW) (10MW)
4 Zertifizierung von WEA auf Prüfständen - von der Forschung in die Richtlinien
12. Branchentag Windenergie NRW | Wissenschaftspark Gelsenkirchen | 27.-28. August 2020
Dr. Uwe Jassmann
Nacelle System Test Benches
History: Test Benches, Research Projects, Guidelines
CWD 1MW CWD 4MW Research
Test Bench Test Bench Wind Turbine
CWD
1st HiL-Test HiL-Test Commercial HiL-Test
Vestas V52 2.7MW WEA ext. HiL-Test Enercon
2011 Aerodyn
91b propos. Wind Turbine
2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020
Start Adapt. Techn. Start Adapt. IEC
FVA-Gondel Guideline TR3 CertBench 61400-21-4
Vestas LORC Clemson LORC LORC
(20MW) (10MW) (15MW) (10MW) (25MW)
Clemson Fhg IWES
(7,5MW) (10MW)
5 Zertifizierung von WEA auf Prüfständen - von der Forschung in die Richtlinien
12. Branchentag Windenergie NRW | Wissenschaftspark Gelsenkirchen | 27.-28. August 2020
Dr. Uwe Jassmann
From Research to Guidelines
Bridging the Gap with research Project CertBench
Obstacles or “CertBench Motivation”
• Many Stakeholders need to understand and
trust the correctness of Nacelle Test Benches
• Missing Requirements for hard- and software
• Missing Validation of test benches against field
Goals of CertBench
• Definition of required modelling detail (rotor)
• Design of mechanical-level HiL-Systems and
Control
• Assessment of the grid emulator’s influence
• Validation of results with the help of commercial
ENERCON Turbine and field tests
6 Zertifizierung von WEA auf Prüfständen - von der Forschung in die Richtlinien
12. Branchentag Windenergie NRW | Wissenschaftspark Gelsenkirchen | 27.-28. August 2020
Dr. Uwe Jassmann
HiL-Systems for Wind Turbine System Test Benches
Detailed Perspective HiL-Systems
User Interface
Wind Speed Grid Properties
Turbulence …
Sensor-Actuator
Rotor-Drivetrain
Emulation Grid Emulation
Emulation
Park Controller
Aerodynamics Grid Model
Windsensor Model
Yaw Model
Pitch Model
Internal Rotor &
Turbine Model
Nacelle
Test Bench (DUT) Pitch Controller Main Controller Converter Control
Drive Control
Auxiliary
Devices
AC DC U, I, f Test Bench
G Converter
Prime Mover and ~ DC AC
Wind Load Unit
mHiL-Operated Test Bench Power-HiL-Operated Test Bench
7 Zertifizierung von WEA auf Prüfständen - von der Forschung in die Richtlinien
12. Branchentag Windenergie NRW | Wissenschaftspark Gelsenkirchen | 27.-28. August 2020
Dr. Uwe Jassmann
HiL-Systems for Wind Turbine System Test Benches
Decisions to make
Modelling Details: Rotor Modes Controller Performance
0Hz 2Hz 10Hz 20Hz
No. Description of mode MT0 MT2 MT10 MT20
1 1st tower fore-aft swing 0.63 0.61 0.61 0.61
2 1st tower lateral swing 0.63 0.63 0.63 0.63
3 1st asym. blade flap bending axis - 0.98 0.98 0.98
4 1st asym. blade flap yaw axis - 0.98 0.98 0.98
5 1st collective blade flap - 1.04 1.03 1.03
6 1st sym.blade edgewise mode - 1.76 1.76 1.76
7 1st asym. blade edgewise mode - 1.80 1.80 1.80
8 1st rotor edgewise-drive train mode 2.91 2.46 2.45 2.45
9 2nd asym. blade flap bending axis - - 2.80 2.80
10 2nd asym. blade flap yaw axis - - 2.84 2.84
11 2nd collective blade flap - - 2.90 2.90
12 2nd rotor edgewise-drive train - 5.87 4.51 4.50
mode
• Investigated MT0; MT2 and MT10 • Controller Bandwidth depends on modelling depth
• Torque change rate of >1 MNm/s
8 Zertifizierung von WEA auf Prüfständen - von der Forschung in die Richtlinien
12. Branchentag Windenergie NRW | Wissenschaftspark Gelsenkirchen | 27.-28. August 2020
Dr. Uwe Jassmann
HiL-Systems for Wind Turbine System Test Benches
Evaluation of Performance - General
Simulation vs. Test Bench Measurement Test Bench Measurement vs. Field
Take Away
Modelling Details are represented at Test Bench
! Test Bench will not be better then the Model
9 Zertifizierung von WEA auf Prüfständen - von der Forschung in die Richtlinien
12. Branchentag Windenergie NRW | Wissenschaftspark Gelsenkirchen | 27.-28. August 2020
Dr. Uwe Jassmann
HiL-Systems for Wind Turbine System Test Benches
Evaluation of Performance – Certification Measurement
For each test we… Derived Requirements
• Compare field measurement • Rotormodell: at least MT2
with CWD and IWES results The rotor model reproduces the mechanical properties of the rotor
• Impact of Modelling Depth in such a way that each blade is considered individually.
• Windfeld: 3D und turbulent
Example: Active Power Peaks The wind field is to be created according to IEC 61400-1 using
standard tools, whereby the selected turbulence intensity must
Vergleich Modelltiefen correspond to the site classification valid for the WTG.
1,04 • Netzemulator: without special requirements
1,03
1,02
• Recommendations for carrying out measurements:
1,01 Each point of time stored in the wind field (e.g. 0-600s) may only
1,00
be run through once during the ten-minute measurement
0,99
0,98 Common trigger between HiL system and measurement system
0,97 to ensure the synchronization of wind field and measurement
P_0.2 P_60 P_600
Feld MT 4 (GE) MT4 Laminar (PG) (*) MT0 (GE) (*)
11 Zertifizierung von WEA auf Prüfständen - von der Forschung in die Richtlinien
12. Branchentag Windenergie NRW | Wissenschaftspark Gelsenkirchen | 27.-28. August 2020
Dr. Uwe JassmannExploitation of Results and Experience
From Research to Guidelines to Business
• Using the results in the guidelines
IEC 61400-21-4 & FGW TR3 (in future also TR8)
Not only modelling depth, but especially recommendations for test execution
Identified gaps in test procedures Forthcoming presentation FGH
Final Report latest CWD Conference for Wind Power Drives March 2021 Aachen
• Present and Future Tasks and Challenges
V-Modell: Integration in Customer Development Cycle
Further virtualization and down-strapping of WTG System
• Commercialization
The University is not the place for commercialization
Enable Customers to certify at their test benches
Enable Customers to seamlessly integrate their models into HiL-System
Driving forward the down strapping of WTG System with modular HiL-Systems
RWTH Spin-Off
12 Zertifizierung von WEA auf Prüfständen - von der Forschung in die Richtlinien
12. Branchentag Windenergie NRW | Wissenschaftspark Gelsenkirchen | 27.-28. August 2020
Dr. Uwe JassmannThank you for your attention. Dr.-Ing. Uwe Jassmann Managing Chief Engineer RWTH Aachen University conatys GmbH u.Jassmann@irt.rwth-aachen.de uwe.jassmann@conatys.com +49 241 80 28033 +49 241 4120 9751
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