| 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. |
| 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 |
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| 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 |
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郝林钊1,何 山1,2,王维庆1,2,祁 希1,江 川1,朱文婷1,汪 洋1,程 静1
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(1.新疆大学电气工程学院，新疆 乌鲁木齐 830049; 2.可再生能源发电与并网技术教育部工程研究中心，新疆 乌鲁木齐 830049)
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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 |
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| 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 |
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HAO Linzhao1,HE Shan1,2,WANG Weiqing1,2,QI Xi1,JIANG Chuan1,ZHU Wenting1,WANG Yang1,CHENG Jing1
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(1. School of Electrical Engineering, Xinjiang University, Urumqi 830049, China;2. Engineering Research Center of Ministry of Education for Renewable Energy Power Generation and Grid Connection Technology, Urumqi 830049, China)
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| 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 |
