scholarly journals Combined active and reactive power control strategy to improve power system frequency stability with DFIGs

2017 ◽  
Vol 2017 (13) ◽  
pp. 2021-2025 ◽  
Author(s):  
Congwei Tu ◽  
Jun Cao ◽  
Lei He ◽  
Ye Fang
Keyword(s):  
Power System ◽  
Power Control ◽  
Control Strategy ◽  
Reactive Power ◽  
Frequency Stability ◽  
Reactive Power Control ◽  
Active And Reactive Power ◽  
System Frequency

scholarly journals An Optimal Reactive Power Control Strategy for a DFIG-Based Wind Farm to Damp the Sub-Synchronous Oscillation of a Power System

Energies ◽  
2014 ◽  
Vol 7 (5) ◽  
pp. 3086-3103 ◽  
Author(s):  
Bin Zhao ◽  
Hui Li ◽  
Mingyu Wang ◽  
Yaojun Chen ◽  
Shengquan Liu ◽  
...  
Keyword(s):  
Power System ◽  
Power Control ◽  
Control Strategy ◽  
Wind Farm ◽  
Reactive Power ◽  
Synchronous Oscillation ◽  
Reactive Power Control

scholarly journals MPC Based Coordinated Active and Reactive Power Control Strategy of DFIG Wind Farm with Distributed ESSs

Energies ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3906
Author(s):  
Hesong Cui ◽  
Xueping Li ◽  
Gongping Wu ◽  
Yawei Song ◽  
Xiao Liu ◽  
...  
Keyword(s):  
Power Control ◽  
Control Strategy ◽  
Wind Farm ◽  
Reactive Power ◽  
Stable Operation ◽  
Reactive Power Control ◽  
Active And Reactive Power ◽  
Control Scheme ◽  
Optimal Control Scheme ◽  
Grid Side

The ESS is considered as an effective tool for enhancing the flexibility and controllability of a wind farm, and the optimal control scheme of a wind farm with distributed ESSs is vital to the stable operation of wind power generation. In this paper, a coordinated active and reactive power control strategy based on model predictive control (MPC) is proposed for doubly fed induction generator (DFIG)-based wind farm (WF) with distributed energy storage systems (ESSs). The proposed control scheme coordinates the active and reactive power output among DFIG wind turbines (WTs), grid-side converters (GSCs), and distributed ESSs inside the WF, and the aim is to decrease fatigue loads of WTs, make the WT terminal voltage inside the extent practicable, and take the WF economic operation into consideration. Moreover, the best reactive power references of DFIG stator and GSC are produced independently based on their dynamics. At last, the control scheme generates optimal power references for all ESS to make the SOC of each ESS converge to their average state. With the distributed ESSs, the WF controller regulates the WTs inside WF more flexibly. A WF composed of 10 DFIG WTs was utilized to verify the control performance of the proposed coordinated active and reactive power control strategy.

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