Simulation Study of Soft Switching Technology for Quasi-Z-source Boost Converter

Abstract

Abstract: With the same input voltage and duty cycle, quasi-Z-source boost converter can provide higher output voltage than traditional boost converter. It has the advantages of high efficiency, wide range of practical output voltage. A quasi-Z-source boost converter topology with soft switching technology was proposed. Using assist switch replaced the diode of original topology, which could accomplish the zero voltage switching on state of the main switch. The MATLAB/Simulink simulation results show that the new topology can reduce the switch stress of main switch and increase the system stability, also it can prolong the life time of switching devices.

Key words: quasi-Z-source boost converter, soft switching technology, switch stress, system simulation

CLC Number:

TM46

Xia Kun, Zeng Yanneng, Ge Yue, Li Xiaodi. Simulation Study of Soft Switching Technology for Quasi-Z-source Boost Converter[J]. Journal of System Simulation, 2015, 27(3): 656-661.

References

[1] 王利民, 钱照明, 彭方正. Z源升压变换器[J]. 电气传动, 2006, 36(1): 28-29.
[2] Peng F Z.Z-source Inverter[J]. Industry Applications, IEEE Transactions on (S0093-9994), 2003, 39(2): 504-510.
[3] 彭方正, 房绪鹏, 顾斌, 等. Z源变换器[J]. 电工技术学报, 2004, 19(2): 47-51.
[4] Anderson J, Peng F Z.Four Quasi-Z-Source Inverters[C]// Power Electronics Specialists Conference. Greece: IEEE, 2008: 2743-2749.
[5] 李杰. Quasi-Z 源逆变器的分析与设计 [D]. 北京: 北京交通大学, 2009.
[6] Li Y, Anderson J, Peng F Z, et al. Quasi-Z-source Inverter for Photovoltaic Power Generation Systems[C]// Applied Power Electronics Conference and Exposition. Washington DC, United States: IEEE, 2009: 918-924.
[7] 蔡春伟, 曲延滨, 盛况. 准 Z 源逆变器的暂态建模与分析[J]. 电机与控制学报, 2011, 15(10): 7-13.
[8] 丁新平. Z 源变流器关键技术的研究 [D]. 杭州: 浙江大学, 2007.
[9] 孙瑞赓. 基于Z源逆变器的高压电源研究和设计 [D]. 哈尔滨: 哈尔滨工业大学, 2009.
[10] Shen M, Peng F Z.Operation Modes and Characteristics of the Z-source Inverter with Small Inductance or Low Power Factor[J]. Industrial Electronics, IEEE Transactions on (S0278-0046), 2008, 55(1): 89-96.
[11] 王利民, 钱照明, 彭方正. Z 源直流变换器[J]. 电气应用, 2005, 24(2): 123-124.
[12] Vilathgamuwa D M, Gajanayake C J, Loh P C.Modulation and Control of Three-phase Paralleled Z-source Inverters for Distributed Generation Applications[J]. Energy Conversion, IEEE Transactions on (S0885-8969), 2009, 24(1): 173-183.
[13] 李媛, 彭方正. Z源/准Z源逆变器在光伏并网系统中的电容电压恒压控制策略[J]. 电工技术学报, 2011, 26(5): 62-69.
[14] 刘胜杰, 吴苓芝. 一种准Z-源DC-DC变流器的研究[J]. 微型机与应用, 2012, 31(17): 33-36.
[15] 汤雨, 谢少军, 张超华. 改进型Z源逆变器[J]. 中国电机工程学报, 2009, 29(30): 28-34.
[16] 高奇, 钱照明, 顾斌, 等. 阻抗型逆变器的一种非正常工作状态分析[J]. 电工技术学报, 2005, 20(8): 178-184.