Automobile Permanent Magnet Generating Set and Its Test

A single-phase two-half-wave permanent-magnet (PM) synchronous generator for vehicle applications is designed. Its rotor is made up of a rotor core and several pieces of Nd-Fe-B permanent-magnet steel on the core. The simulation models of the permanent magnet generator and its regulator is presented using a toolbox of MATLAB named SIMULINK. Based on the simulation of key element of the control circuit on different state, the single-phase two-half-wave control circuit for permanent magnet generator is designed. A test bed built for the experiments of variable-speed generator is described. The test bed is composed of a generator, a VWF inverter driven squirrel motor, a PC-based data acquisition and control system. The generator and regulator experiment is carried out on the test platform. The analysis results demonstrate the effectiveness of the proposed circuit design methodology.