新型高效率并联谐振直流环节软开关逆变器

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (948 KB)
输出: BibTeX | EndNote (RIS)

摘要为降低传统硬开关逆变器的开关损耗,提出了一种新型高效率并联谐振直流环节软开关逆变器。通过在传统硬开关逆变器的直流环节添加辅助谐振单元,使直流母线电压周期性地归零,可以实现逆变桥主开关器件的零电压开关,而且辅助开关器件也可以实现零电压开关和零电流开关。此外,辅助谐振单元中的器件都位于直流母线的并联支路上,有利于降低辅助谐振单元的损耗,从而实现逆变器效率的明显改善。对其工作原理进行分析,给出不同工作模式下的等效电路图,软开关的实现条件和控制策略。制作一个5kW的实验样机,通过实验结果验证该软开关逆变器的有效性。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	王强
	王天施
	孙海军
	刘晓琴
	侯利民

关键词 ：软开关, 直流环节, 并联谐振, 逆变器

Abstract：A novel high efficiency parallel resonant DC link soft-switching inverter is proposed to reduce switching loss in the conventional hard-switching inverter in this paper. Auxiliary resonant unit was added to DC link of conventional inverter to make DC-bus voltage decrease to zero periodically,which realizes zero-voltage operation of all switching devices in inverter. Switching devices in the auxiliary resonant unit con also be operated under zero-voltage switching and zero-current switching. In addition,devices in the auxiliary resonant unit are in parallel with DC-bus to reduce loss of auxiliary resonant unit. Therefore,efficiency can be improved obviously. The operation principle was analyzed. The equivalent circuits at different operation modes,conditions for realization of soft-switching,and control strategy are presented. A 5kW laboratory prototype is built. Experimental results are proposed to confirm validity of soft-switching inverter presented.

Key words： Soft-switching DC-link parallel resonant inverter

收稿日期: 2011-09-06 出版日期: 2013-12-11

PACS:

TM464

基金资助:国家自然科学基金资助项目(51207069)。

引用本文:

王强，王天施，孙海军，刘晓琴，侯利民. 新型高效率并联谐振直流环节软开关逆变器[J]. 电工技术学报, 2013, 28(5): 219-226. Wang Qiang,Wang Tianshi,Sun Haijun,Liu Xiaoqin,Hou Limin. Novel High Efficiency Parallel Resonant DC Link Soft-Switching Inverter. Transactions of China Electrotechnical Society, 2013, 28(5): 219-226.

链接本文:

http://dgjsxb.ces-transaction.com/CN/Y2013/V28/I5/219

[1] Bellar M D, Wu T S, Tchamdjou A, et al. A review of soft-switched dc-ac converters[J]. IEEE Transactions on Industry Applications, 1998, 34(4): 847-860.
[2] 祁晓蕾, 阮新波. 一种新的双幅控制有源箝位谐振直流环节逆变器[J]. 中国电机工程学报, 2008, 28(27): 42-47.
Qi Xiaolei, Ruan Xinbo. A novel two-amplitude active-clamped resonant DC link inverter[J]. Proceedings of the CSEE, 2008, 28(27): 42-47.
[3] 应建平, 沈红, 张德华, 等. 双滞环控制的三相双幅有源箝位谐振直流环节逆变器[J]. 中国电机工程学报, 2004, 24(2): 8-12.
Ying Jianping, Shen Hong, Zhang Dehua, et al. Two-hystersis control of three-phase two-amplitude actively clamped resonant DC-link inverter[J]. Proceedings of the CSEE, 2004, 24(2): 8-12.
[4] 明正峰, 钟彦儒, 宁耀斌, 等. 一种新的直流母线并联谐振零电压过渡三相PWM电压源逆变器[J]. 电工技术学报, 2001, 16(6): 31-35.
Ming Zhengfeng, Zhong Yanru, Ning Yaobin, et al. A novel transition DC-rail parallel resonant zero voltage three phase PWM voltage source inverter[J]. Transactions of China Electrotechnical Society, 2001, 16(6): 31-35.
[5] Pan Zhiyang, Luo Fanglin. Transformer based resonant DC link inverter for brushless DC motor drive system[J]. IEEE Transactions on Power Electronics, 2005, 20(4): 939-947.
[6] 王军, 徐龙祥. 软开关技术在磁悬浮轴承功率放大器中的应用[J]. 电工技术学报, 2009, 24(6): 85-90.
Wang Jun, Xu Longxiang. Application of power amplifier for active magnetic bearing using soft- switching technology[J]. Transactions of China Electrotechnical Society, 2009, 24(6): 85-90.
[7] Chen Yietone. A new quasi-parallel resonant DC link for soft-switching PWM inverter[J]. IEEE Transactions on Power Electronics, 1998, 13(3): 427-435.
[8] 王军, 徐龙祥. 磁悬浮轴承并联谐振直流环节开关功率放大器[J]. 中国电机工程学报, 2009, 29(12): 87-92.
Wang Jun, Xu Longxiang. Parallel resonant DC link soft-switching power amplifier of magnetic bearing[J]. Proceedings of the CSEE, 2009, 29(12): 87-92.
[9] 张化光, 王强, 褚恩辉, 等. 新型谐振直流环节软开关逆变器[J]. 中国电机工程学报, 2010, 30(3): 21-27.
Zhang Huaguang, Wang Qiang, Chu Enhui, et al. A novel resonant DC link soft-switching inverter[J]. Proceedings of the CSEE, 2010, 30(3): 21-27.
[10] Gurunathan R, Ashoka K S B. Zero-voltage switching DC link single-phase pulsewidth-modulated voltage source inverter[J]. IEEE Transactions on Power Electronics, 2007, 22(5): 1610-1618.
[11] 李睿, 马智远, 徐德鸿. 一种高效率软开关三相并网逆变器[J]. 电力系统自动化, 2011, 35(3): 62-66.
Li Rui, Ma Zhiyuan, Xu Dehong. A high efficiency soft switching three-phase grid-connected inverter[J]. Automation of Electric Power Systems, 2011, 35(3): 62-66.
[12] 潘三博, 陈宗祥, 潘俊民. 一种新型直流环节谐振逆变器的空间矢量脉宽调制方法[J]. 中国电机工程学报, 2007, 27(1): 65-69.
Pan Sanbo, Chen Zongxiang, Pan Junmin. A novel SVPWM method for DC rail resonant inverter[J]. Proceedings of the CSEE, 2007, 27(1): 65-69.
[13] 贺虎成, 刘卫国, 李榕, 等. 电机驱动用新型谐振直流环节电压源逆变器[J]. 中国电机工程学报, 2008, 28(12): 60-65.
He Hucheng, Liu Weiguo, Li Rong, et al. A novel resonant DC link voltage source inverter for motor drives[J]. Proceedings of the CSEE, 2008, 28(12): 60-65.
[14] 王强. 无中性点电位变化的辅助谐振变换极逆变器[J]. 中国电机工程学报, 2011, 31(18): 27-32.
Wang Qiang. Auxiliary resonant commutated pole inverter without change of neutral point potential[J]. Proceedings of the CSEE, 2011, 31(18): 27-32.
[15] 王强. 新型零电压开关谐振直流环节逆变器[J]. 中国电机工程学报, 2011, 31(27): 74-80.
Wang Qiang. Novel zero-voltage switching resonant DC link inverter[J]. Proceedings of the CSEE, 2011, 31(27): 74-80.
[16] 王强, 张化光, 褚恩辉, 等. 新型零电压零电流谐振极型软开关逆变器[J]. 中国电机工程学报, 2009, 29(27): 15-21.
Wang Qiang, Zhang Huaguang, Chu Enhui, et al. Novel zero-voltage and zero-current resonant pole soft-switching inverter[J]. Proceedings of the CSEE, 2009, 29(27): 15-21.
[17] 王强, 张化光, 褚恩辉, 等. 一种新型三相无源软开关逆变器[J]. 中国电机工程学报, 2009, 29(18): 33-40.
Wang Qiang, Zhang Huaguang, Chu Enhui, et al. A novel three-phase passive soft-switching nverter[J]. Proceedings of the CSEE, 2009, 29(18): 33-40.
[18] Zhang Huaguang, Wang Qiang, Chu Enhui, et al. Analysis and implementation of a passive lossless soft-switching snubber for PWM inverters[J]. IEEE Transactions on Power Electronics, 2011, 26(2): 411-426.