电子设计工程
電子設計工程
전자설계공정
ELECTRONIC DESIGN ENGINEERING
2015年
12期
172-175
,共4页
梁永清%李占龙%杜承蔚%韦淦予
樑永清%李佔龍%杜承蔚%韋淦予
량영청%리점룡%두승위%위감여
功率因数校正%平均电流%Boost变换器%双闭环
功率因數校正%平均電流%Boost變換器%雙閉環
공솔인수교정%평균전류%Boost변환기%쌍폐배
PFC%average current mode%Boost converter%double loop control
为有效消除电力电子设备的谐波干扰，基于UC3855设计了BOOST功率因数校正电路。主电路为减少功率损耗采用ZVT零电压辅助开关。控制电路采用双闭环平均电流模式。利用乘法器校正使输入电流接近正弦波并保持与电压同相位。通过小信号建模推导了电流环、电压环传递函数，配置了系统双环补偿校正网络的参数。最后通过MATLAB仿真和实验验证了设计的正确性。系统的动、稳态性能良好，功率因数接近为1。
為有效消除電力電子設備的諧波榦擾，基于UC3855設計瞭BOOST功率因數校正電路。主電路為減少功率損耗採用ZVT零電壓輔助開關。控製電路採用雙閉環平均電流模式。利用乘法器校正使輸入電流接近正絃波併保持與電壓同相位。通過小信號建模推導瞭電流環、電壓環傳遞函數，配置瞭繫統雙環補償校正網絡的參數。最後通過MATLAB倣真和實驗驗證瞭設計的正確性。繫統的動、穩態性能良好，功率因數接近為1。
위유효소제전력전자설비적해파간우，기우UC3855설계료BOOST공솔인수교정전로。주전로위감소공솔손모채용ZVT령전압보조개관。공제전로채용쌍폐배평균전류모식。이용승법기교정사수입전류접근정현파병보지여전압동상위。통과소신호건모추도료전류배、전압배전체함수，배치료계통쌍배보상교정망락적삼수。최후통과MATLAB방진화실험험증료설계적정학성。계통적동、은태성능량호，공솔인수접근위1。
In order to decrease the interference of harmonic in power electronic devices effectively, this paper proposed a BOOST Power-Factor-Correction circuit based on the UC3855. The main circuit uses the ZVT Zero-Voltages-Switch attempt to reduce the power loss. The part of control uses the Double loop average current mode. The function of multiplier is to make the input current approach a sinusoidal, and keeping the AC input current in phase with voltage. In this paper, we give the transfer function of current loop and voltage loop through a small signal model, assigned the parameters of Double compensation network. Finally, we proved the efficiency of proposed method through MATLAB simulation and experiments. The dynamic and static performance of this system is satisfactory, and the power factor approach to 1.
