demo 1 - best paths projectbestpaths-project.eu/.../berlin_de_3_demo1_luis-martin.pdf · 2016. 10....
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DEMO 1DEVELOPMENT OF A DC FACILITY TO SIMULATE OFFSHORE MULTITERMINAL HVDC GRIDS AND THEIR INTERACTION WITH WIND TURBINE GENERATORS
“INNOVATIVE NETWORK TECHNOLOGIES AND THE FUTURE OF EUROPE'S ELECTRICITY GRID” BEST PATHS DISSEMINATION WORKSHOPBERLIN, 26 NOVEMBER 2016
Luis Martín
Iberdrola Renewables
27 October 2016
DEMO 1: Overview
HVDC equipment manufacturers provide “black boxes”
We intend to use open models
?
Detailed models
Simulation & validation
DEMO 1: Objectives
3
1. To investigate the electrical interactions between the HVDC link converters and thewind turbine converters in offshore windfarms
2. To de-risk the multivendor and multiterminal schemes from the point of view ofresonances, power flow and control
3. To demonstrate the results in a laboratory environment using scaled models (4-terminal DC grid with 60 kW MMC VSC prototypes and a Real Time Digital Simulatorsystem to emulate the AC grid)
4. To use the validated models to simulate a real grid with offshore wind farmsconnected in HVDC
DEMO 1: Activities
4
WP 3: R&DTask 3.1 - Development of models: WTG, offshore wind farm HVDC links & TSO grid
Task 3.2 – Development of WTG and associated converters control algorithms and strategies
Task 3.3 – Simulation of WTG interaction scenarios
Task 3.4 – Technical assessment of the simulation results
WP 8: Demonstration
Task 8.1 – definition, model and engineering of the scaled equipment
Task 8.2 – Procurement and construction of test facility
Task 8.3 – Definition of tests
Task 8.4 – Demonstration
D8.1 – Detailed specification of the demonstrator. (SINTEF, M27)
D8.2 – Specification of tests and documentation of results. (Iberdrola, M39)
D3.1 – Models of WTG, HVDC links, offshore grid. Control algorithms, models and strategies.
(Tecnalia, M15) Already delivered
D3.2 – Results and conclusions from the simulations and studies. (Cardiff, M24) Delayed to late Nov.
DEMO 1: Status
5
Models and Control Algorithms
• A set of models and control algorithms has been developed, simulated andassessed. The models have been implemented in a MATLAB/Simulink.
• To maximise dissemination and impact, the models will be published in the BEST PATHSwebsite as open access toolbox.
• Specific blocks include models of:
o Converter stations;
o High level controllers;
o AC grid;
o DC cables;
o Wind farm.
• Documentation of these models has been already produced. Details can be found inDeliverable D3.1.
DEMO 1: Status
6
Models and Control Algorithms
• A number of topologies has been modelled,simulated and analysed.
• The topologies considered constitute likelyscenarios to be adopted for the transmissionof offshore wind energy in future years.
• Point-to-point
• Three terminal
• Six-terminal with AC coupling
• Six-terminal with DC coupling
• Twelve-terminal meshed grid
• DC interarray
• The performance of the models is currently being evaluated with a set of Key Performance Indicators. The results will be presented in D3.2
GSC #3Pg3,Qg3
Onshore
AC Grid #3
(Vdc vs. P) and Q
Controller
Vdc_g3
Vdc_g3* Qg3*
GSC #2Pg2,Qg2
Onshore
AC Grid #2
(Vdc vs. P) and Q
Controller
Vdc_g2
Vdc_g2* Qg2*
GSC #1Pg1,Qg1
Onshore
AC Grid #1
(Vdc vs. P) and Q
Controller
Vdc_g1
Vdc_g1* Qg1*
DC
NETWORK
Offshore Onshore
Pw1
AC Voltage
Control
fw1*Vac_w1*
Vac_w1
Offshore
Grid #1
WFC #1
θw1*
Pw2
AC Voltage
Control
fw2*Vac_w2*
Vac_w2
Offshore
Grid #2WFC #2
θw2*
Pw3
AC Voltage
Control
fw3*Vac_w3*
Vac_w3
Offshore
Grid #3WFC #3
θw3*
Pw6
AC Voltage
Control
fw6* Vac_w6*
Vac_w1
Offshore
Grid #6
WFC #6
θw6*
Pw5
AC Voltage
Control
fw5* Vac_w5*
Vac_w2
Offshore
Grid #5WFC #5
θw5*
Pw6
AC Voltage
Control
fw6* Vac_w6*
Vac_w3
Offshore
Grid #6WFC #6
θw6*
GSC #6Pg6,Qg6
Onshore
AC Grid #6
(Vdc vs. P) and Q
Controller
Vdc_g6
Vdc_g6* Qg6*
GSC #5Pg5,Qg5
Onshore
AC Grid #5
(Vdc vs. P) and Q
Controller
Vdc_g5
Vdc_g5* Qg5*
GSC #4Pg4,Qg4
Onshore
AC Grid #4
(Vdc vs. P) and Q
Controller
Vdc_g4
Vdc_g4* Qg4*
DC
NETWORK
Offshore Onshore
GSC
Pw1
Pg1,Qg1Onshore
AC Grid #1
DC CABLE
Vdc and Q
Controller
AC Voltage
Control
Vdc_g1
Vdc_g1*fw1*|Vac_w1*|
Vac_w1
Offshore
Grid #1WFC Offshore Onshore
Qg1*
θw1*
DEMO 1: Status
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Demonstrator
• Demonstration will be carried out in SINTEF laboratory in Trondheim, Norway.
• The design of the power and control boards was finished and most of the parts to build the demonstrator have been ordered or already received. The assembly of components is ongoing.
DEMO 1: Status
8
Demonstrator
Assembly ongoing
DEMO 1: Status
9
Demonstrator
• Converter cabinets will be installed in the recently upgraded SINTEF laboratory.
DEMO 1: Next Steps
10
Deliverable D3.2 – Results and conclusions from simulation studies
• The date for submission of this deliverable was postponed Sept. to late Nov.
o All simulation topologies have been finalised and validated.
o A general methodology for KPI assessment applicable for all topologies has been defined, with contributions from all partners.
o KPI assessment is being carried out. Tests performed so far show KPIs are met.
o The analysis and simulation of power electronic solutions to habilitate the connection of wind turbines to DC collector systems is currently being carried out.
o A summary of the results obtained in DIgSILENT PowerFactory from the Western Danish grid studies will be included in D3.2.
Deliverable D3.1 – Models of WTG, HVDC links, offshore grid, control
algorithms, models and strategies
• There have been changes to the models reported previously in this deliverable, so it needs to be updated.
DEMO 1: Next Steps Demonstrator
o Full demonstrator built by the end of 2016 Full specification in D8.1
o Tasks that will be carried out during 2017
• Commissioning of the demonstrator milestone M8.1
• Specification of tests to validate software models
• Model validation tests and analysis of results Deliverable 8.2
DEMO 1: Expected Results & Impact
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o Improve the knowledge on the integration of OWFs via HVDC linksor future multi-terminal DC (MTDC) grids
o Identify possible interactions between wind turbines, converters,HVCD links and/or grids, and the onshore grid
o Reduce uncertainties from OWFs connected to MTDC and multi-vendor HVDC schemes, and, consequently, de-risk the use of thesetechnologies
o Provide open models to the industry, that are validated in ademonstrator
o Provide access to a laboratory with scaled-down MMC converters thatwill allow the industry to test their controls and equipment
CONTACT
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Luis Martín
www.bestpaths-project.euFollow us on Twitter: @BestPaths_eu