一种Boost软开关变换器的改进方法  

An improved strategy based on Boost soft-switching converter

作　　者：熊颖杰[1,2] 熊贤泰 XIONG Ying-jie;XIONG Xian-tai(School of Electrical and Information Engineering,Jiangsu University,Zhenjiang 212013,Jiangsu Province,China;Shangrao Power Supply Company,Jiangxi Electric Power Company,State Grid,Shangrao 334000,Jiangxi Province,China;Beijing Tiecheng Construction Supervision Co.,Ltd.,Beijing 100855,China)

机构地区：[1]江苏大学电气信息工程学院,江苏镇江212013 [2]国网江西省电力公司上饶供电公司,江西上饶334000 [3]北京铁城建设监理有限公司,北京100855

出　　处：《信息技术》2017年第7期167-174,共8页Information Technology

摘　　要：为了减小Boost软开关变换器高频工作状态下开关管的功率损耗,文中提出了一种改进调制策略,传统调制策略下主开关管只能实现零电流开通,通过改变主开关管的开通时刻和辅助开关管的关断时刻可实现主开关管零电压零电流开通,辅助开关管可提前实现零电压零电流关断,提高了电路工作效率。仿真波形中观察到改进调制策略下主开关管实现了零电压零电流开通,辅助开关管提前实现了零电压零电流关断。In order to decrease the power loss of switches of Boost soft-switching converter,an improved modulation strategy was proposed.The main switch can only achieve zero-current turn-on under the traditional modulation strategy.However,the change to the turn-on time of main switch and the turn-off time of auxiliary switch can make the main switch achieve zero-voltage zero-current turn-on,and the auxiliary switch realize zero-voltage zero-current turn-off in advance as well,so the circuit working efficiency was improved.The simulation results show that the main switch can achieve zero-voltage zero-current turn-on and the auxiliary switch could realize zero-voltage zero-current turn-off.

关 键 词：BOOST 软开关 零电流开通 零电压零电流关断 

分 类 号：TM46[电气工程—电器]