Reactive power control strategy of DFIG wind farms for regulating voltage of power grid

2014 ◽  
Author(s):  
Jingjing Zhai ◽  
Haoming Liu
Keyword(s):  
Power Control ◽  
Control Strategy ◽  
Reactive Power ◽  
Power Grid ◽  
Wind Farms ◽  
Reactive Power Control

Reactive Power Control Strategy of Demand Side Back-to-Back Converter Based on VSM

2020 ◽  
Vol 13 (8) ◽  
pp. 1242-1255
Author(s):  
Xiao Lyu ◽  
Gang Ma
Keyword(s):  
Power Control ◽  
Control Strategy ◽  
Reactive Power ◽  
Power Grid ◽  
Supply And Demand ◽  
Control Model ◽  
Demand Side ◽  
Control Loop ◽  
Reactive Power Control ◽  
Side Load

Background: The Demand Side Management (DSM) technology is playing an increasingly important role in the power system, in order to promote the real-time supply and demand balance of the power grid and improve the economy and safety of the power grid. Objective: To realize the flexible and continuous reactive power control of demand side load, a reactive power control strategy for the demand side back-to-back converter (DS-B2BC) is proposed. Methods: First, DS-B2BC is proposed. Then, the reactive power control model of DS-B2BC and its control loop are designed, and the reactive power control model, based on the Virtual Synchronous Motor (VSM), is established. Results: The simulation results verify that the reactive power control strategy proposed in this paper is effective, which can control the demand side load reactive power flexibly and continuously. Conclusion: Moreover, the strategy can counteract the disturbance from the power grid simultaneously.

scholarly journals An Anti-Fluctuation Compensator Design and Its Control Strategy for Wind Farm System

Energies ◽  
2021 ◽  
Vol 14 (19) ◽  
pp. 6413
Author(s):  
Feng-Chang Gu ◽  
Hung-Cheng Chen
Keyword(s):  
Power Control ◽  
Control Strategy ◽  
Large Scale ◽  
Wind Farm ◽  
Reactive Power ◽  
Wind Farms ◽  
Voltage Regulation ◽  
Current Control ◽  
Reactive Power Control ◽  
Control Scheme

Large-scale wind farms in commercial operations have demonstrated growing influence on the stability of an electricity network and the power quality thereof. Variations in the output power of large-scale wind farms cause voltage fluctuations in the corresponding electrical networks. To achieve low-voltage ride-through capability in a doubly fed induction generator (DFIG) during a fault event, this study proposes a real-time reactive power control strategy for effective DFIG application and a static synchronous compensator (STATCOM) for reactive power compensation. Mathematic models were developed for the DFIG and STATCOM, followed by the development of an indirect control scheme for the STATCOM based on decoupling dual-loop current control. Moreover, a real-world case study on a commercial wind farm comprising 23 DFIGs was conducted. The voltage regulation performance of the proposed reactive power control scheme against a fault event was also simulated. The simulation results revealed that enhanced fault ride-through capability and prompt recovery of the output voltage provided by a wind turbine generator could be achieved using the DFIG along with the STATCOM in the event of a three-phase short-circuit fault.

scholarly journals Research of reactive power control strategy to reduce the reactive power exchange of AC and DC power grid

2017 ◽  
Vol 2017 (13) ◽  
pp. 751-755
Author(s):  
Tu Ren-chuan ◽  
Zhao Cheng-gong ◽  
Liu Zhi-jun ◽  
Cui Yong ◽  
Xie Wei ◽  
...  
Keyword(s):  
Power Control ◽  
Control Strategy ◽  
Reactive Power ◽  
Power Grid ◽  
Reactive Power Control ◽  
Dc Power ◽  
Power Exchange
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