Journal article · Ahead of Print article
Distributed Voltage Control based on ADMM for Large Scale Wind Farm Cluster connected to VSC HVDC
Technical University of Denmark1
Department of Electrical Engineering, Technical University of Denmark2
Center for Electric Power and Energy, Centers, Technical University of Denmark3
Electric Power Systems, Center for Electric Power and Energy, Centers, Technical University of Denmark4
Shandong University5
Harvard University6
Hunan University7
A distributed voltage control scheme (DVC) based on the alternating direction method of multipliers (ADMM) is proposed for the large-scale wind farm cluster (WFC) connected to VSC-HVDC. The proposed scheme coordinates the reactive power output among several wind farms and wind turbines (WTs) inside each wind farm, which keeps the collector bus voltage of each wind farm and WT terminal voltages within the feasible range, and minimizes active power losses.
Firstly, a distributed reactive power control scheme based on the consensus ADMM is designed for the WFC, which can achieve fair reactive power sharing among wind farms with the optimal reactive power utilization ratio, to regulate the collector bus voltage close to the rated voltage. Secondly, a decentralized reactive power control scheme based on the standard ADMM is designed for each wind farm, which can effectively regulate reactive power outputs of all WTs within the wind farm.
The ADMM algorithm is used to reduce the calculation burden of wind farm controller. Moreover, the proposed decentralized control scheme coordinates the voltage regulation and economical operation. The DVC is able to effectively reduce the computation burden of the WFC and wind farm controllers, and the communication cost is reduced.
A WFC with 8 wind farms was used to validate the proposed DVC scheme.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2020 |
| Pages: | 584-594 |
| ISSN: | 19493037 and 19493029 |
| Types: | Journal article and Ahead of Print article |
| DOI: | 10.1109/TSTE.2019.2898102 |
| ORCIDs: | Wu, Qiuwei , 0000-0003-1179-6959 , 0000-0002-2037-163X , 0000-0001-5816-8621 , 0000-0002-1376-4531 and 0000-0001-9116-7487 |
Alternating direction method of multipliers (ADMM) Convex functions HVDC power convertors HVDC power transmission Loss measurement Reactive power Voltage control Voltage measurement WFC wind farm controllers WT Wind farms collector bus voltage close consensus decentralised control decentralized reactive power control scheme decentralized voltage control distributed power generation distributed reactive power control scheme distributed voltage control scheme large-scale wind farm cluster optimal reactive power utilization ratio optimisation power control power generation control reactive power reactive power control reactive power output voltage control voltage source converter-high voltage wind farm cluster (WFC) wind farm controller wind power plants wind turbines
