| 引用本文: | 郝林钊,何山,王维庆,等.一种基于CR-CD型电路的直驱风机变流器IGBT过电压保护电路研究[J].电力系统保护与控制,2019,47(9):150-157.[点击复制] |
| HAO Linzhao,HE Shan,WANG Weiqing,et al.Research on IGBT overvoltage protection circuit of direct drive wind turbine converter based on CR-CD circuit[J].Power System Protection and Control,2019,47(9):150-157[点击复制] |
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| 摘要: |
| 针对直驱风力发电系统中变流器IGBT存在过电压脉冲的问题，基于IGBT的物理模型及C型、钳位二极管、RC型和RCD型四种过电压保护电路提出了一种新型CR-CD(Capacitor resistor and capacitor diode)过电压保护电路。首先，分析了CR-CD过电压保护电路的工作原理，论证了CR-CD过电压保护电路抑制过电压脉冲的优良性能。其次，详细设计了过电压保护电路的参数。最后，基于Matlab/Simulink平台搭建了CR-CD型过电压保护电路仿真模型，分别在恒定和变化负载电感两种工况下进行仿真对比分析。结果表明:CR-CD过电压保护电路不仅可以有效地抑制过电压脉冲，还能起到避免因电容造成的过电压脉冲衰减延迟以及缩短IGBT关断时间的作用。 |
| 关键词: 直驱风机 变流器 IGBT 过电压保护 CR-CD |
| DOI：10.7667/PSPC180588 |
| 投稿时间：2018-05-17修订日期：2018-11-20 |
| 基金项目:国家自然科学基金项目(51767024，51667020);教育部创新团队滚动支持计划(RT-16R63);新疆大学博士科研启动基金项目(BS160245) |
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| Research on IGBT overvoltage protection circuit of direct drive wind turbine converter based on CR-CD circuit |
| HAO Linzhao,HE Shan,WANG Weiqing,QI Xi,JIANG Chuan,ZHU Wenting,WANG Yang,CHENG Jing |
| (School of Electrical Engineering, Xinjiang University, Urumqi 830049, China;School of Electrical Engineering, Xinjiang University, Urumqi 830049, China;Engineering Research Center of Ministry of Education for Renewable Energy Power Generation and Grid Connection Technology, Urumqi 830049, China) |
| Abstract: |
| Aiming at the problem of overvoltage pulse in IGBT of direct drive wind power generation system, a new type of Capacitor Resistor and Capacitor Diode (CR-CD) overvoltage protection circuit is proposed based on the physical model of IGBT and four kinds of C-type, clamped diode, RC-type and RCD-type overvoltage protection circuit. Firstly, the working principle of CR-CD overvoltage protection circuit is analyzed, and the excellent performance of CR-CD overvoltage protection circuit to suppress overvoltage pulse is demonstrated. Secondly, the parameters of overvoltage protection circuit are designed in detail. Finally, the simulation model of CR-CD type overvoltage protection circuit is built based on the platform of Matlab/Simulink. The simulation results are compared and analyzed under the conditions of constant and variable load inductance. The results show that the CR-CD overvoltage protection circuit can not only effectively suppress the overvoltage pulse, but also avoid the overvoltage pulse attenuation delay caused by capacitance and shorten the IGBT turn-off time. This work is supported by National Natural Science Foundation of China (No. 51767024 and No. 51667020), Ministry of Education Innovation Team Rolling Support Program (No. RT-16R63) and Xinjiang University Doctoral Research Startup Fund Project (No. BS160245). |
| Key words: direct drive wind turbine converter IGBT overvoltage protection CR-CD |
