CAJ | 학술논문

针对传统单相Boost功率因数校正变换器开关管工作在硬开关状态时存在较大开关损耗的缺点，设计了一款平均电流控制型单相Boost ZVT-PWM变换器。在剖析了该变换器工作原理的基础上，对其主电路中谐振网络及控制电路的关键参数进行了分析与设计，并利用Saber软件对该电路系统的性能进行了仿真验证。结果表明，文中所提Boost ZVT-PWM变换器可有效地提高电路系统的功率因数、降低开关损耗，同时可较好地解决功率开关管中电流和电压的交叠问题。
침대전통단상Boost공솔인수교정변환기개관관공작재경개관상태시존재교대개관손모적결점，설계료일관평균전류공제형단상Boost ZVT-PWM변환기。재부석료해변환기공작원리적기출상，대기주전로중해진망락급공제전로적관건삼수진행료분석여설계，병이용Saber연건대해전로계통적성능진행료방진험증。결과표명，문중소제Boost ZVT-PWM변환기가유효지제고전로계통적공솔인수、강저개관손모，동시가교호지해결공솔개관관중전류화전압적교첩문제。
Due to the drawbacks of high switching losses in the conventional single -phase Boost power factor correction(PFC)converter,where the switching device operates in hard -switching state,a new kind topology named single-phase Boost ZVT-PWM converter is designed,where an average current mode control technique for pulse width modulation(PWM)dc-dc converters is introduced,and the working principle of the converter is analyzed in detail.Then,some key parameters of the resonant network in main circuit and control circuit,are analyzed and designed respectively,and the performance of the circuit system is researched by Saber simula-tions.The results show that the proposed Boost ZVT-PWM converter can offer perfect power factor and reduce switching losses in some degree.What′s more,the proposed converter serves a good solution to the cross-cut-ting issues of the current and voltage on switching device.