A Cooperative Approach of Frequency Regulation Through Virtual Inertia Control and Enhancement of Low Voltage Ride-through in DFIG-based Wind Farm  

作　　者：Preeti Verma Seethalekshmi K. Bharti Dwivedi 

机构地区：[1]Department of Electrical Engineering,Institute of Engineering and Technology,Lucknow 226021,Uttar Pradesh,India,which is a constituent institute of Dr.A.P.J.Abdul Kalam Technical University,Lucknow,Uttar Pradesh(U.P.),India [2]IEEE

出　　处：《Journal of Modern Power Systems and Clean Energy》2022年第6期1519-1530,共12页现代电力系统与清洁能源学报（英文）

摘　　要：Doubly-fed induction generator(DFIG)-based wind farms(WFs)are interfaced with power electronic converters.Such interfaces are attributed to the low inertia generated in the WFs under high penetration and that becomes prevalent in a fault scenario.Therefore,transient stability enhancement along with frequency stability in DFIG-based WFs is a major concern in the present scenario.In this paper,a cooperative approach consisting of virtual inertia control(VIC)and a modified grid-side converter(GSC)approach for low voltage ride-through(LVRT)is proposed to achieve fault ride-through(FRT)capabilities as per the grid code requirements(GCRs)while providing frequency support to the grid through a synthetic inertia.The proposed approach provides LVRT and reactive power compensation in the system.The participation of the VIC in a rotor-side converter(RSC)provides frequency support to the DFIG-based WFs.The combined approach supports active power compensation and provides sufficient kinetic energy support to the system in a contingency scenario.Simulation studies are carried out in MATLAB/Simulink environment for symmetrical and unsymmetrical faults.The superiority of the proposed scheme is demonstrated through analysis of the performance of the scheme and that of a series resonance bridge-type fault current limiter(SR-BFCL).

关 键 词：Virtual inertia controller(VIC) doubly-fed induction generator(DFIG) fault ride-through(FRT)capability wind farm(WF) fault current limiter(FCL) 

分 类 号：TM614[电气工程—电力系统及自动化]