摘要
功率因数校正(power factor correction,PFC)技术可以有效提高电网功率因数并减少电网谐波污染。相对于常规Boost PFC电路来说,无桥Boost PFC电路在每一个开关周期内同时导通的功率器件少,电路的导通损耗低,能明显地提高电能的转换效率,但是当电路的开关频率提高时,电路的开关损耗也会大大增加,所以有必要在无桥Boost PFC电路中引入软开关技术。设计了一种采用平均电流控制的最小电压应力无源无损无桥Boost PFC软开关电路,并通过Saber软件进行了仿真验证,证明了设计的无桥Boost PFC软开关电路与平均电流PFC控制方法的有效性。
Power factor correction(PFC)technology can effectively improve power factor and reduce harmonic pollution.Compared with the conventional Boost PFC circuit,the bridgeless Boost PFC circuit has less power devices and lower conduction loss in each switching cycle,which can significantly improve the power conversion efficiency.However,when the switching frequency increases,the circuit switching loss will also greatly increase.So it is particularly necessary to add soft switching technology in bridgeless Boost PFC circuit.In this paper,a minimum stress passive lossless bridgeless Boost PFC soft switching circuit based on average current control was designed and simulated by Saber software.The results prove the effectiveness of the designed bridgeless boost PFC soft switching circuit and average current PFC control method.
作者
马建成
张庆贺
李萍
彭爱武
MAJiancheng;ZHANG Qinghe;LI Ping;PENGAiwu(Beijing University of Information Technology,Department of Automation,Beijing 100192,China;Department of Ocean Energy Conversion,Institute of Electrical Engineering,Chinese Academy of Sciences,Beijing 100190,China)
出处
《电源技术》
CAS
北大核心
2021年第7期949-952,共4页
Chinese Journal of Power Sources
基金
北京信息科技大学2019年度“实培计划”项目资助。
