CAJ | 학술논문

为实现一种结构简单,高效,高频,低电压应力,简单控制的软开关升压变换器,提出一种零电压零电流转移斩波电路,并以其在Boost变换器的应用为例分析了其工作原理、软开关实现条件以及该电路的设计方法.仿真和实验结果表明:通过采用两条辅助谐振网络实现了主、辅开关管的软开关;主开关管实现了零电压关断,开关管电压电流应力小;辅助开关管实现了零电流通断,特别适用于以IGBT作为开关器件的高电压大功率场合.该软开关设计思想可以推广到其它的基本斩波电路中.
위실현일충결구간단,고효,고빈,저전압응력,간단공제적연개관승압변환기,제출일충령전압령전류전이참파전로,병이기재Boost변환기적응용위례분석료기공작원리、연개관실현조건이급해전로적설계방법.방진화실험결과표명:통과채용량조보조해진망락실현료주、보개관관적연개관;주개관관실현료령전압관단,개관관전압전류응력소;보조개관관실현료령전류통단,특별괄용우이IGBT작위개관기건적고전압대공솔장합.해연개관설계사상가이추엄도기타적기본참파전로중.
In order to realize a simple topology with high efficiency, high frequency, low voltage stress, which is easy to control soft switching boost converter, a novel zero-voltage and zero-current transition chopper is presented in the paper. Its operation principle is analyzed through its application to the boost converter. The condition of soft-switching and the design considerations are analyzed in detail. The novel soft-switching cell can be also used in other basic chopper circuits. The simulation and experiment results prove that soft-switching of the main switch and auxiliary can be achieved by using two auxiliary resonant networks. The proposed chopper circuit has such advantages as zero-current turn-on and zero-voltage turn-off for the main switch without increasing voltage and current stress, zero-current turn-on and turn-off for auxiliary switches. It is very attractive for high power application where IGBT is predominantly used as the power switches.