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宽输入电压范围Buck型变流器小信号环路

, PP. 97-102

Keywords: 小信号,半桥,动态特性,相位裕量

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Abstract:

Buck型变流器的功率级小信号传递函数会随输入电压变化而变化,对于宽输入电压范围的应用,会出现稳定性和动态不能兼顾的问题。详细分析了Buck型变流器小信号特性,总结了通常的设计方法,并且提出了采用输入电压作为补偿量去影响PWM锯齿波斜率的方案,从而抵消功率级中输入电压的影响。给出了一次侧控制和二次侧控制时具体的输入电压补偿电路。采用补偿电路的Buck型变流器在不同输入电压下环路增益的博德图一致性非常好,变换器能够取得较好的稳定性和动态。该方案解决了宽输入电压范围Buck型变流器的小信号设计问题,使得Buck型变流器更加适合于系统集成。

 References

[1]  Qian Zhaoming, Zhang Junming, Lü Zhengyu. Power electronics system integration[J]. China Integrated Circuit, 2003(50): 39-45.
[2]  王兆安, 杨旭, 王晓宝. 电力电子集成技术的现状及发展方向[J]. 电力电子技术, 2003, 37(5): 90-94.
[3]  陈文洁, 杨旭, 杨栓科, 等. 分立元件构成的电力电子集成功率模块的设计[J]. 中国电机工程学报, 2003, 23(12)：104-110.
[4]  Chen Wenjie, Yangxu, Yang Shuanke, et al. A design of discrete components based integrated power modules [J]. Proceedings of the CSEE, 2003, 23(12)：104-110.
[5]  Gu Yilei, Hang Lijun, Lü Zhengyu, et al. Application of magamp post regulation in LLC resonant converter[J]. Transactions of China Electrotechnical Society, 2006, 21(9): 93-98.
[6]  顾亦磊, 杭丽君, 吕征宇, 等. 一种适用于高压输出的软开关多谐振直流变流器[J]. 电工技术学报, 2006, 21(4): 102-106.
[7]  Gu Yilei, Hang Lijun, Lü Zhengyu, et al. Soft- switching multi-resonant DC/DC converter for high voltage output applications[J]. Transactions of China Electro-technical Society, 2006, 21(4): 102-106.
[8]  潘尚志, 钱照明, 雷娜. 一种通用的新型单/双正激型直流变换器电路仿真平均模型[J]. 中国电机工程学报, 2001, 21(6)：58-62.
[9]  Zhang Fanghua, Wang Huizhen, Yan Yangguang. The push-pull forward rectifier and its application[J]. Proceedings of the CSEE, 2004, 24(4)：168-173.
[10]  Yungtaek Jang, Jovanovic M M. A new family of full-bridge ZVS converters[C]. IEEE APEC 2003, 2003: 622-628.
[11]  欧阳长莲, 严仰光, 章宝国. 同步整流Buck变换器断续工作模式建模分析[J]. 电工技术学报, 2002, 17(6)：53-58.
[12]  Ouyang Changlian, Yan Yangguang, Zhang Baoguo. Modling analysis of synchronous rectifier Buck converter in discontinuous conduction mode[J]. Transactions of China Electro-technical Society, 2002, 17(6)：53-58.
[13]  Yuri P, Milan M J. Small-signal analysis and control design of isolated power supplies with optocoupler feedback[J]. IEEE Transactions on Power Electronics, 2005, 20(4): 823-832.
[14]  顾亦磊, 吕征宇, 钱照明. DC/DC拓扑的分类和选择标准[J]. 浙江大学学报(工学版), 2004, 38(10): 1375-1379.
[15]  钱照明, 张军明, 吕征宇. 电力电子系统集成 [J]. 中国集成电路, 2003(50): 39-45.
[16]  Wang Zhaoan, Yang Xu, Wang Xiaobao. State-of-art and development trends of power electronics integration technology[J]. Power Electronics, 2003, 37(5): 90-94.
[17]  顾亦磊, 杭丽君, 吕征宇, 等. 磁放大后级调整技术在LLC谐振型变换器中的应用[J]. 电工技术学报, 2006, 21(9): 93-98.
[18]  Pan Shangzhi, Qian Zhaoming, Lei Na. An average model for unified forward DC-DC converter[J]. Proceedings of the CSEE, 2001, 21(6)：58-62.
[19]  张方华, 王慧贞, 严仰光. 推挽正激整流及其应用[J]. 中国电机工程学报, 2004, 24(4)：168-173.
[20]  Rozman A F. Low loss synchronous rectifier for application to clamped-mode forward: US Patent, 5303138[P]. 1994.
[21]  Tan F D. The forward converter: from the classic to the contemporary[C]. IEEE APEC, 2002: 857-863.
[22]  许峰, 徐殿国, 柳玉秀. 具有最优动态响应的PWM型DC-DC变换器非线性控制新策略[J]. 中国电机工程学报, 2003, 23(12): 133-139.
[23]  Xu Feng, Xu Dianguo, Liu Yuxiu. A novel nonlinear control method for PWM DC-DC converter with optimizing transient response[J]. Proceedings of the CSEE, 2003, 23(12): 133-139.
[24]  Robert W E, Dragan M. Fundamentals of power electronics[M]. Colorado USA: Kluwer Academic Publishers, 2001.
[25]  Gu Yilei, Lü Zhengyu, Qian Zhaoming. DC/DC topology classification and selection criterion[J]. Journal of Zhejiang University(Engineering Science), 2004, 38(10): 1375-1379.

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