Abstract:With average large signal model and phase plane method, the start-up processes of average current mode controlled buck converter with both constant power load and resistive load are analyzed. The analysis indicates that there are two kinds of process that are normal start-up and current-limited processes when converter operates as constant power load, which are determined by the current-limited value of source converter. Finally, the theoretical analysis is confirmed with simulation and experimental results.
王建华, 张方华, 龚春英, 朱成花. 带恒功率负载的DC/DC变换器起动过程分析[J]. 电工技术学报, 2009, 24(4): 121-125.
Wang Jianhua, Zhang Fanghua, Gong Chunyin, Zhu Chenghua. Start-Up Process Analysis of DC/DC Converter With Constant Power Load. Transactions of China Electrotechnical Society, 2009, 24(4): 121-125.
[1] 朱成花, 严仰光. Boost变换器恒功率负载时动态性能分析[J]. 南京航空航天大学学报, 2005, 37(1): 20-24. [2] Grigore V, Hatonen J, Kyyra J, et al.Dynamics of a buck converter with a constant power load[C]. 29th Annual IEEE Power Electronics Specialists Confer- ence, 1998:72-78. [3] Gadoura I, Grigore V, Hatonen J, et al.Stabilizing a telecom power supply feeding a constant power load[C]. 20th International Telecommunications Energy Conference, 1999: 243-248. [4] Rivetta C, Williamson G A. Global behavior analysis of a dc-dc boost power converter operating with constant power load[J]. Proceedings of the 2004 International Symposium on Circuits and Systems, 2004:956-959. [5] Rivetta C, Williamson G A. Large-signal analysis of a dc-dc buck power converter operating with constant power load[C]. 29th Annual Conference of the IEEE Industrial Electronics Society, 2003: 732-737. [6] Belkhayat M, Cooley R, Witulski A. Large signal stability criteria for distributed systems with constant power loads[C]. 26th Annual IEEE Power Electronics Specialists Conference, 1995:1333-1338. [7] Erickson R W. Fundamentals of power electronics[M]. New York: Kluwer Academic Publishers Group. [8] 张卫平. 开关变换器的建模与控制[M]. 北京:中国电力出版社, 2005. [9] Ridley R B, Cho B H, Lee F C. Analysis and interpretation of loop gains of multiloop-controlled switching regulators[J]. IEEE Transactions on Power Electronics, 1988, 3(4): 489-498. [10] 谢小高, 张军明, 钱照明. 基于Y参数模型的三环路电压调整模块控制环路设计[J]. 中国电机工程学报, 2006, 26(25): 60-64. 作者简介 王建华 男, 1982年生, 博士研究生, 研究方向为直流分布式电源系统建模与控制。 张方华 男, 1976年生, 博士, 副教授, 研究方向为双向直直变换器与直流分布式电源系统。