Performance Analysis and Research on LVRT of PMSG Wind Power Systems with SDBR
This paper proposes a low-voltage ride-through(LVRT)protection scheme without fault current limiter(FCL)on the grid-side inverter(GSI),based on energy balance characteristics of permanent magnet synchronous generator(PMSG)wind power systems during the grid voltage drop.The scheme utilizes a series dynamic braking resistor(SDBR)to consume the excess active power from the PMSG transmitting to the grid during the voltage drop.A detailed design procedure and control strategy for the SDBR is presented.The theoretical analysis and the PSCAD/EMTDC simulation results prove that the proposed protection scheme can boost GSI voltage,limit GSI over-current,stabilize DC-link voltage,guarantee the safe and stable operation of the converters,and then improve LVRT capability of PMSG wind power system.
Permanent magnet synchronous generator (PMSG) Fault current limiter (FCL) Low voltage ride-through (LVRT) Series dynamic braking resistor (SDBR)
JI Tongzhou HE Xiongfeng LI Xianyun LIU Kun ZHANG Mei
School of Electrical & Automation Engineering,Nanjing Normal University,Nanjing 210042,China School of Electric Power Engineering,Nanjing Institute of Technology,Nanjing 211167,China
国际会议
The 33th Chinese Control Conference第33届中国控制会议
南京
英文
6953-6958
2014-07-28（万方平台首次上网日期，不代表论文的发表时间）