摘要
提出了一种改进的Boost功率因数校正(PFC)算法。在电压环PI控制时,提高电压环截止频率仍然能使输入电流的波形不受输出电压二次纹波的影响,并且能够提高系统对负载变化动态响应速度。本文对算法涉及的具体参数进行了详细计算分析,在PSIM软件中使用数字模块对该算法进行了仿真分析,验证了该算法是有效的。
An improved algorithm for Boost power factor correction（PFC） is proposed. In PI control of voltage loop, although the crossover frequency increases, input current is not disturbed by the secondary ripple in the output voltage, the dynamic response to load variation is also improved. The parameters referred in this algorithm are analyzed and calculated in detail in this paper, by simulations in digital blocks of PSIM software, the effectiveness of this algorithm is verified.
出处
《电气技术》
2015年第7期44-47,共4页
Electrical Engineering
关键词
功率因数校正
二次纹波
动态响应
Power factor correction
secondary ripple
dynamic response
