级联型变流器直流母线空载振荡分析与环路优化设计

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (33603 KB)
输出: BibTeX | EndNote (RIS)

摘要针对两级式静止变流器空载时出现直流母线低频振荡的问题开展研究。基于前级直-直变换器在电流连续（CCM）和电流断续（DCM）状态的小信号模型,分析了CCM和DCM状态下开环系统参数与补偿网络对于系统稳定性的影响,利用Matlab仿真软件绘制系统幅相曲线,揭示了级联型变换器直流母线电压在空载状态下低频振荡产生的原因及其与环路参数的关系。针对后级逆变器空载以及轻载状态,兼顾CCM状态的稳定性和动态性研究分析了前级直-直变换器电路参数和补偿网络设计规则,通过Saber仿真验证了设计规则的有效性。最后在4kV·A航空静止变流器实验平台上进行了实验验证,给出了相应的动态和稳态实验波形,表明了分析结果正确性和所提方法有效性。

	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
	陈轶涵
	陈杰
	韦徵
	龚春英

关键词 ：移相全桥直-直变换器, 级联式变换器, 平均电流控制, 低频脉动, 空载, 电压环增益

Abstract：Based on the continuous conduction mode(CCM) and discontinuous conduction mode(DCM) small signal modeling of preceding stage average current control phase shift full bridge converter, influences to stability of open loop parameters and compensating network are analysised.It also draw bode diagram by use of Matlab simulation, announce the cause of DC bus oscillation of cascade converter with no load, and relationship between oscillation and control loop parameters. Compensating network should be optimal designed in order to suppress DC bus oscillation. Considering stability and dynamics of converter works in CCM mode, this paper analysis design rule of compensating network for converter works in DCM mode. Conclusion is tested in a 4kV·A cascade converter, which is consisted of phase shift full bridge converter and three bridge four legs inverter. Simulation and experiment results prove theoretical analysis is correct.

Key words： Phase-shift full bridge DC-DC converter cascade converter average current mode control low frequency ripple no-load gain of voltage loop

收稿日期: 2014-04-17 出版日期: 2015-10-20

PACS:

TM461

作者简介: 陈轶涵男,1982年生,博士研究生,主要研究方向为功率电子变换技术。（通信作者）陈杰男,1982年生,博士,主要研究方向为功率电子变换技术和风力发电控制技术。

引用本文:

陈轶涵, 陈杰, 韦徵, 龚春英. 级联型变流器直流母线空载振荡分析与环路优化设计[J]. 电工技术学报, 2015, 30(18): 16-24. Chen Yihan, Chen Jie, Wei Zheng, Gong Chunying. Analysis of DC Bus Oscillation for Cascaded Converter with No Load and Its Control Loop Optimal Design. Transactions of China Electrotechnical Society, 2015, 30(18): 16-24.

链接本文:

https://dgjsxb.ces-transaction.com/CN/Y2015/V30/I18/16

[1] 张方华, 龚春英. 高效率模块化航空静止变流器的研制[J]. 航空学报, 2009, 30(6): 1119-1125. Zhang Fanghua, Gong Chunying. High efficiency modular aeronautic static inverter[J]. Acta Aeronautica et Astronautica Sinica, 2009, 30(6): 1119-1125.
[2] 葛红娟, 蒋华, 王培强. 基于内模原理的新型三相航空静止变流器闭环控制系统[J]. 电工技术学报, 2006, 21(9): 88-92. Ge Hongjuan, Jiang Hua, Wang Peiqiang. A novel three-phase aviation static inverter closed loop control system based on the internal mode principle[J]. Transac- tions of China Electrotechnical Society, 2006, 21(9): 88-92.
[3] Liu Changrong, Lai Jihsheng. Low frequency current ripple reduction technique with active control in a fuel cell power system with inverter load[J]. IEEE Transactions on Industry Electronics, 2007, 22(4): 1429-1436.
[4] Junichi Itoh, Fumihiro Hayashi. Ripple current reduc- tion of a fuel cell for a single-phase isolated converter using a DC active filter with a center tap[C]. IEEE Transactions on Power Electronics, 2010, 25(3): 550- 556.
[5] 朱成花, 严仰光. 一种改进的阻抗比判据[J]. 南京航空航天大学学报, 2006, 38(3): 315-320. Zhu Chenghua, Yan Yangguang. Improved impedance criterion[J]. Journal of Nanjing University of Aeronautics & Astronautics, 2006, 38(3): 315-320.
[6] Feng X G, Liu J J, Lee F C. Impedance specifications for stable DC distributed power systems[J]. IEEE Transactions on Power Electronics, 2002, 17(2): 157-162.
[7] Wu Tao, Ruan Xinbo. Standardization of input/output impedance specifications of Buck converters based on the system integration cencept[C]. Power Electronics and Motion Control Conference, 2006: 1-6.
[8] 王建华, 张方华, 龚春英, 等. 电压控制型Buck DC/DC变换器输出阻抗优化设计[J]. 电工技术学报, 2007, 22(8): 18-23. Wang Jianhua, Zhang Fanghua, Gong Chunying, et al. Study of output impedance optimization for voltage mode control Buck DC/DC converter[J]. Transactions of China Electrotechnical Society, 2007, 22(8): 18-23.
[9] 吴涛, 阮新波. 分布式供电系统中负载变换器的输入阻抗分析[J]. 中国电机工程学报, 2008, 28(12): 20-25. Wu Tao, Ruan Xinbo. Input impedance analysis of load converters in the distributed power system[J]. Proceedings of the CSEE, 2008, 28(12): 20-25.
[10] Song Tingting, Huang Nianci. A novel zero-voltage and zero current switching full bridge PWM converter[J]. IEEE Transactions on Power Electronics, 2005, 20(2): 286-291.
[11] Ruan Xinbo. An improved ZVS PWM full-bridge converter with clamping diodes[C]. Annual IEEE Power Electronics Specialists Conference, 2004: 1476-1481.
[12] Cho Junggoo, Baek Juwon, Chang Yong Jeong, et al. Novel zero-voltage and zero-current-switching full- bridge PWM converter using a simple auxiliary circuit[J]. IEEE Transactions on Industry Applications, 1999, 35(1): 15-20.
[13] 储仁杰, 贲洪奇, 吴辉. FB-ZVZCS变换器小信号建模及补偿器设计[J]. 控制工程, 2008, 15(3): 302-309. Chu Renjie, Ben Hongqi, Wu Hui. Small-signal modeling of FB-ZVZCS converter and compensator design[J]. Control Engineering of China, 2008, 15(3): 302-309.
[14] 王艳丹, 蔡宣三. 全桥零电压开关-脉宽调制变换器的小信号分析与最优控制[J]. 清华大学学报, 1994, 34(4): 52-61. Wang Yandan, Cai Xuansan. Analysis and optimum control of ZVS full-bridge PWM converter[J]. Journal of Tsinghua University, 1994, 34(4): 52-61.
[15] 陈仲, 汪昌友, 陈森. 航空静止变流器的输入纹波电流特性研究[J]. 中国电机工程学报, 2012, 32(27): 154-161. Chen Zhong, Wang Changyou, Chen Sen. Analysis on input ripple current characteristics of aviation static inverters[J]. Proceedings of the CSEE, 2012, 32(27): 154-161.
[16] Di Zhang, Fei(Fred)Wang, Rolando Burgos, et al. Common-mode circulating current control of paralleled interleaved three-phase two-level voltage-source con- verters with discontinuous space-vector modulation[J]. IEEE Transactions on Power Electronics, 2011, 26(12): 3925-3935.
[17] Dahono P A, Kataoka T. Analysis and minimization of ripple components of input current and voltage of PWM inverters[J]. IEEE Transactions on Industry Applications, 1996, 32(4): 945-950.
[18] Evans P D, Hill Cottingham R J. DC link current in PWM inverter[J]. Proceedings of IEEE, 1986, 133(4): 217-224.