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Universal Power-Hardware-in-the-Loop Simulator for BLDCM and PMSM
Xu Jiaqun,Xing Meili,Zhang Hongqiang 한국자기학회 2019 Journal of Magnetics Vol.24 No.3
To improve the test efficiency and reduce the test cost, this paper presents a design method of universal power-hardware-in-the-loop (PHIL) simulator for brushless DC motor (BLDCM) and permanent magnet synchronous motor (PMSM). The actual stator winding is simulated by the power-level current source in the simulator, thus, the electric power can be interacted between the simulator and the motor driver. By the method of bilinear transform and inverse Z-transform, the line voltage based numerical models of the virtual motors are derived. Moreover, the relationship between the line voltage and phase current of the virtual motors is analyzed, which is used to calculate the phase current commands in the numerical models. Furthermore, the universal PHIL simulator is implemented and the real-time simulation is performed, and then the offline simulation with MATLAB software and the actual motor test are also performed to verify the simulator results. The simulation and experimental results show that both PMSM and BLDCM can be simulated accurately at the power level without changing any hardware of the motor driver and the simulator.
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