新型电流型固态短路限流器驱动电源  

Novel Current-fed Drive Power Supply for Solid-state Current Limiter

作　　者：苏斌[1] 吕征宇[1] 

机构地区：[1]电力电子国家专业实验室(浙江大学),浙江省杭州市310027

出　　处：《中国电机工程学报》2009年第27期48-53,共6页Proceedings of the CSEE

摘　　要：介绍了一种新的固态短路限流器的驱动电源架构,提出新的谐振型高频交变恒流源拓扑方案,获得了低谐波含量的电流型高频交流母线。新型驱动电源采用功率和控制信号分离传输技术,以高压电缆线和高压光纤作为电气隔离基础,以磁环作为电流变压器实现多路输出;具有电压隔离等级高、扩展性好和安装便捷等优点;新母线技术,简化了电路,提高了变换效率和可靠性。分析其工作原理和输出特性,讨论了参数的影响,并给出设计参考。试制一台400W、2.5A输出的样机,进行实验验证。结果表明,新型的驱动电源可实现软开关,获得高效率(最高效率为91%),在全负载范围内的频率调整范围小,并获得低谐波含量的高频交变电流母线。A novel drive power supply structure is introduced. A novel resonant-type high frequency AC bus topology is presented and low harmonic disortion current-fed high-frequency AC bus is obtained. The novel structure is of the advantages： high-voltage level isolation, high reliability, excellent extensibility and installation flexibility. And with the novel bus, circuits are simplified, and efficiency and performance are improved. The novel current-fed drive power supply is analyzed in detail. A prototype of 400 W, 2.5 A output was built to verify the theoretical analysis. The experiment result shows that high efficiency is achieved （91% maximum efficiency）, frequency adjustment range is small within the full load range, current-fed high-frequency AC bus with low harmonic components is obtained.

关 键 词：固态短路限流器驱动 电流型高频交流母线 高压隔离 多路输出 谐振变换器 

分 类 号：TM85[电气工程—高电压与绝缘技术] TN86[电子电信—信息与通信工程]