小型三相异步电动机单相驱动电路设计与仿真  

Single phase driving circuit design and emulation for small sized 3 phase asynchronous motors

作　　者：凌忠兴[1] 

机构地区：[1]丽水学院工学院,浙江丽水323000

出　　处：《实验室科学》2016年第4期55-57,61,共4页Laboratory Science

摘　　要：在交流电路中,当有电容(或电感)支路存在时将导致该支路的电压与电流之间出现相位差,且通过改变由电阻、电容、电感所构成的RLC网络参数及其拓扑结构可实现大于120°相移。为方便在仅有单相交流电源的场合也能使用小型三相异步电动机,可结合三相异步电机在某一特定工作条件下所测得三相绕组的等效电阻和电感参数,并通过选择三相绕组所串接电容或电感量来获得120°相移的对称三相电源,经MATLAB/Simulink仿真验证该对称电源可用于小型三相异步电动机的驱动。When there is a capacitor （or inductor） branch in an AC circuits,the phase difference be-tween voltage and current in the branch will be caused. A greater than 120 degrees phase shift can be achieved by altering the RCL network parameters and its topological structure which is made up of re-sistors ,capacitors and inductors. For the convenience of occasions where only single-phase AC power also can use small three-phase asynchronous motor, a 120 degrees phase-shift symmetrical three- phase power is obtained from a single-phase AC power by selecting capacitance or inductance of the three-phase winding connected in series,together with the measured parameters of equivalent resist-ance and inductance of three-phase winding in three- phase asynchronous motor under specific condi-tions. MATLAB/Simulink simulation shows the designed power can be used to drive small three-phase asynchronous motor.

关 键 词：小型三相异步电动机 单相驱动 SIMULINK仿真 

分 类 号：TM131[电气工程—电工理论与新技术]