| Title |
Hybrid Simulation Model of Multi-Phase Brushless AC Motor |
| Authors |
Hyung-Soo Mok ; Jun-Hee Hong ; Sang-Hoon Kim |
| Keywords |
7-Phase Brushless AC Motor ; FEA(Finite Element Analysis) ; Modeling ; Simulation |
| Abstract |
The emf of a permanent magnet multi-phase BLAC(Brushless AC) motor is generally a non-sinusoidal or a non-ideal trapezoid wave. So, conventional modeling using a sinusoidal or an ideal trapezoid emf can result in errors to simulate and analyze the properties of a multi-phase BLAC motor, To reduce the modeling error, this paper proposes a phase variable model, which is obtained from a hybrid modeling technique consisting of Finite Element Analysis(FEA) based circuits and equations. Since the phase model parameters including the emf waveform were obtained using FEA, the proposed hybrid modeling technique can be used to implement a simulation model for multi-phase BLAC motors with any emf voltage waveforms. Adequacy of the proposed model was established from the simulation and experimental results for a seven-phase BLAC motor. |