| 大功率变频电源超速区自激损坏分析及系统设计简 |
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| 引用本文： | 江平,梅文庆,甘韦韦,周志宇,胡仙,周蓉.大功率变频电源超速区自激损坏分析及系统设计简[J].变流技术与电力牵引,2014(1):28-31. |
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| 作者姓名： | 江平 梅文庆 甘韦韦 周志宇 胡仙 周蓉 |
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| 作者单位： | 南车电气技术与材料工程研究院; |
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| 摘 要： | 对带LC滤波器的变频器超速试验故障停机时造成功率器件损坏的原因进行了仿真分析,并进行了试验验证。结合仿真分析和试验结果,对异步电机与滤波电容之间的自激进行了理论分析,提出了超速区切除滤波电容的系统设计方案。仿真和试验结果均表明该方案可行。
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| 关 键 词： | 变频器 LC滤波器 超速区 自激 |
Analysis of Self-excited Damage and System Design for High-power Variable Frequency Power Supply in Overspeed Region |
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| JIANG Ping,MEI Wen-qing,GAN Wei-wei,ZHOU Zhi-yu,HU Xian,ZHOU Rong.Analysis of Self-excited Damage and System Design for High-power Variable Frequency Power Supply in Overspeed Region[J].Converter Technology & Electric Traction,2014(1):28-31. |
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| Authors: | JIANG Ping MEI Wen-qing GAN Wei-wei ZHOU Zhi-yu HU Xian ZHOU Rong |
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| Institution: | (CSR Research of Electrical Technology ＆ Material Engineering, Zhuzhou, Hunan 412001, China) |
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| Abstract: | Owing to the phenomenon that the converter with LC filter has been suffered fault shut-down in overspeed test and then resulted in damage of power devices, the simulation analysis and experimental verification were both carried out. Combing simulation and experimental results, the theoretical analysis of self-excitation between asynchronous and filter capacitor was completed, and the system design to remove the filter capacitor in overspeed region was proposed. Simulation and experiment results show that the scheme is feasible. |
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| Keywords: | inverter LC filter overspeed region self-excitation |
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