摘要
单周期功率因数校正(Power Factor Correction,简称PFC)技术无需传统的有源PFC技术的乘法器和输入电压采样,大大简化了PFC变换器设计,该技术还具有动态响应速度快、抗电源扰动能力强的特点。分析了单周期PFC技术的工作原理,提出了单周期PFC技术的数字控制方案。采用TMS320F28035型DSP芯片,设计了一套单周期PFC的数字控制系统,对上述控制方案进行了实验验证。结果表明该数字控制方案可较好地实现PFC,从而证明该方案可行。
One cycle control power factor correction（PFC）technique doesnt’ need the multiplier and AC line voltage sens-ings,o the PFC converter has simpler circuit structure.The one cycle control PFC technique also has the feature of fast dy-namic response and strong ability to reject the input voltage perturbation.A digital control solution for PFC is proposed af-ter the analyses of the one cycle control mechanism.Then a digital one cycle control PFC control system is designed with the DSP TMS320F28035 and the digital control solution is verified by the system.The experimental results indicate that the proposed solution can realize good PFC effect and the feasibility of the digital control solution is also verified.
出处
《电力电子技术》
CSCD
北大核心
2010年第7期31-32,共2页
Power Electronics
关键词
变换器
单周期控制
功率因数校正
数字控制
converter
one cycle control
power factor correction
digital control
