Experimental Verification and Prediction of Generating Performance of PMG with Multi-Pole Rotor based on Electromagnetic Analysis and Parameter Estimation considering Skew Effects

스큐를 고려한 다극 영구자석 발전기의 전자기 특성해석/제어정수 도출을 통한 발전특성 예측 및 실험적 검증

The analytical expressions for magnetic field distributions considering slotting effects, cogging torque and back-emf considering skew effects are established. On the basis of magnetic field solutions, electrical parameters such as back-emf constant and winding inductance are obtained. The predicted results are validated extensively by non-linear finite element (FE) analyses. In particular, test results such as back-emf, cogging torque, inductance and resistance measurements are given to confirm the analyses. Finally, generating performances are investigated by applying estimated parameters to equivalent circuit (EC) of the permanent magnet generator (PMG) and validated extensively by FE calculations and measurements.