具有恒功率特性的输出宽范围可调的变结构DC-DC变换器  

A Wide Output Range Reconfigurable Structure of DC-DC Converters With Constant Output Power Characteristics

作　　者：孙鹏菊[1] 周雒维[1] 杜雄[1] 

机构地区：[1]输配电装备及系统安全与新技术国家重点实验室(重庆大学),重庆市沙坪坝区400044

出　　处：《中国电机工程学报》2012年第6期81-89,共9页Proceedings of the CSEE

基　　金：国家自然科学基金项目(51077137)~~

摘　　要：针对直流测试电源等宽范围的应用场合,提出一种具有恒功率特性的输出宽范围可调的变结构DC-DC变换器,该变换器是对传统隔离型直流变换器的拓展,由多级可串并联输出的单元模块嵌套组成。详细阐述变换器的基本结构、工作原理和工作序列,研究恒功率控制策略和平滑切换控制策略及通用的系统模型。并以某级嵌套为例,进行实验研究和同类变换器的对比分析,结果验证了理论分析的正确性和可行性,以及该变换器在宽范围领域应用的优越性。A new wide output range constant output power reconfigurable structure（WOCP-RS） DC-DC converter,which is an extension of the traditional DC-DC converter by nesting some series/parallel modules,was presented.Operating principle,basic structure,operating states,control strategies and generalized model were illustrated.An experimental prototype of the basic structure was built.The experimental results verified the correctness and feasibility of the theoretical analysis.Comparisons with two close related converters showed that the proposed WOCP-RS converter is advantageous for wide output range constant output power applications.

关 键 词：变结构 输出宽范围 串并联模块 恒功率 DC-DC变换器 

分 类 号：TM46[电气工程—电器]