ZnO压敏电阻在高压变频器过电压保护中的应用

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Abstract This paper researches on overvoltage protection of neutral point clamped (NPC) three-level high voltage inverter which is based on IGCTs in series. A method of using ZnO varistor is first proposed to protect inverters from overvoltage. Through analyzing the different locations and connection structures of ZnO varistors, a reasonable design method is found. Taking all the IGCTs and clamping diodes with RC snubbers as the protected part of inverter solves the problem of hard to do overvoltage protection of each power electronic switch device. The withstand voltage of the protected part is analyzed based on practical parameters, and the design of ZnO varistors is given. The simulation results based on Matlab/Simulink are show that ZnO varistor is available to avoid overvoltage of NPC three-level high voltage inverter. The designed ZnO varistor is applied in practice.

Key words： ZnO varistor three-level high voltage inverter overvoltage protection

Received: 12 November 2009 Published: 20 March 2014

PACS:

TM862

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	Fang Jing
	Mao Chengxiong
	Lu Jiming
	Wang Dan

Cite this article:

Fang Jing,Mao Chengxiong,Lu Jiming等. Application of ZnO Varistor in Overvoltage Protection of Neutral Point Clamped Three-level High Voltage Inverter[J]. Transactions of China Electrotechnical Society, 2012, 27(4): 145-152.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2012/V27/I4/145

[1] 徐政, 卢强. 电力电子技术在电力系统中的应用[J]. 电工技术学报, 2004, 19(8): 23-27.
[2] 牛铁龙, 张康民. 变频器过电压故障原因分析及对策[J]. 变频器世界, 2005, 7: 116-118.
[3] 刘文华, 宋强, 严干贵, 等. 采用IGCT电压型三电平逆变器的高压变频调速器[J]. 电力系统自动化, 2002, 26(20): 61-65.
[4] Nabae A, Takahashi I, Akagi H. A new neutral-point-clamped PWM inverter[J]. IEEE Transactions on Industrial Applications, 1981, 17: 518-523.
[5] 王毅, 李和明, 石新春, 等. 多电平PWM逆变器谐波分析与输出滤波器设计[J]. 中国电机工程学报, 2003, 23(10): 78-82.
[6] 林磊, 邹云屏, 钟和清, 等. 二极管钳位型三电平逆变器控制系统研究[J]. 中国电机工程学报, 2005, 25(15): 33-39.
[7] 刘健, 尹项根, 张哲, 等. 高压大功率三电平逆变器的SPWM数字化技术研究[J]. 中国电机工程学报, 2008, 28(27): 35-41.
[8] 易荣, 赵争鸣. 受杂散电感影响的大容量变换器中IGCT关断特性研究[J]. 中国电机工程学报, 2007, 27(31): 115-120.
[9] Lu Jiming, Wang Dan, Mao Chengxiong, et al. Study of RC-snubber for series IGCTs[J]. Power System Technology, Proceedings, 2002, (1): 595-599.
[10] 李时华, 毛承雄, 陆继明, 等. 基于RC阻容吸收的串联IGCT动态均压研究[J]. 高电压技术, 2007, 33(9): 163-166.
[11] 孟凡明, 孙兆奇. ZnO压敏材料研究进展[J]. 安徽大学学报 (自然科学版), 2006, 30(4): 61-64.
[12] 禹争光. 氧化锌压敏电阻电输运特性及大通流器件设计研究[D]. 成都: 电子科技大学, 2005.
[13] 姜艳姝, 刘宇, 徐殿国, 等. PWM变频器输出共模电压及其抑制技术的研究[J]. 中国电机工程学报, 2005, 25(9): 47-53.
[14] Fang Jing, Mao Chengxiong, Lu Jiming, et al. The research on protection of over-voltage about NPC three-level medium voltage motor drives[C]. Proceedings of the 11th International Conference on Electrical Machines and Systems, Wuhan, 2008: 1595-1599.
[15] 袁立强. 基于IGCT的多电平变换器若干关键问题研究[D]. 北京: 清华大学, 2004.
[16] 赵争鸣, 张海涛, 袁立强, 等. 基于IGCT的高压三电平变频器失效机理及保护策略[J]. 电工技术学报, 2006, 21(5): 1-6.