应用于汽车的带有非对称输出的三相PFC电路  

Three-phase Power Factor Correction Circuit with Asymmetrical Output for Automobile Application

作　　者：尚修香[1] 胡晓清[1] 吴国君[1] 储庆中[1] 

机构地区：[1]徐州空军学院,江苏徐州221000

出　　处：《电力电子技术》2011年第11期31-33,共3页Power Electronics

摘　　要：提出一种利用三相功率因数校正(PFC)电路从汽车发电机绕组获取非对称输出电压的技术,输出电压分为14 V和42 V。前者用于对蓄电池充电,及为控制单元、传感器等车内标准电气负载供电,后者主要为大功率电气负载供电,此类负载主要用在新型汽车上。对所提出的拓扑、输入电流纹波、线电感的设计和占空比等进行了详细分析,最后在40 kHz条件下进行了样机实验。This paper presents a novel technique to obtain asymmetrical output voltage from the automobile alternator windings.The goal is reached with the help of a three-phase PFC circuit.The output voltage levels are 14 V and 42 V. The first one is used to supply the battery and the standard electrical loads within the vehicle such as control units and sensors.The other one can be used to supply heavier loads that require more power.This kind of loads is fre- quently found in new vehicles.It also presents a detailed analysis of the proposed topology,input current ripple,design of the line inductors and duty cycles.In addition the experimental results are shown for a 40 kHz switching frequency.

关 键 词：功率因数校正 汽车 蓄电池 

分 类 号：TM714.3[电气工程—电力系统及自动化]