摘要
为了实现AC/DC功率变换的单位功率因数控制,抑制电感电流的高次谐波,通过对传统的功率因数校正升压电路拓扑结构进行改进,同时采用预测专家控制算法,用于功率变换电路的控制。仿真试验表明,预测专家控制算法能有效地控制改进后的功率因数校正电路,使功率变换器工作在单位功率因数下系统具有较快的动态响应特性,并且对电感电流有较强的谐波抑制能力。
In order to realize unit-power-factor AC-DC power converter,and inhibit higher harmonics of the inductor current,the traditional Boost power factor correction（PFC） circuit topology was improved.Predictive expert control algorithm was used to control switch-mode power converter.The simulation results show that the predictive expert control method can effectively control the modified PFC circuit,so that power converter is operated in unit power factor,the improved system has fast dynamic response characteristics,and has a strong harmonic suppression capacity on the inductor current.
出处
《低压电器》
北大核心
2011年第14期48-52,共5页
Low Voltage Apparatus
关键词
预测专家控制
功率因数校正
Boost变换
predictive expert control
power factor correction（PFC）
Boost converter
