摘要
传统的永磁无刷直流电动机[1]常采用两电平的功率驱动方式,但两电平功率驱动电路受功率器件耐压限制,不能满足大功率负载的应用场合;另外两电平功率驱动电路还存在谐波成分大、电流纹波大等一系列问题。因此,提出采用三电平控制策略[2]来解决上述问题。在MATLAB/Simulink环境下,搭建三电平无刷直流电动机控制系统的模型,仿真结果与理论分析一致,验证了该理论的合理性和有效性。
Conventional driven of PM brushless DC motor usually uses two-level inverters. Because power device voltage levels is limited, two-level inverters can not drive high power load. And the motor winding current contains very high harmonic current and ripple current. Three-level control strategy was proposed to drive BLDCM. In MATLAB/Simulink environment, three-level brushless DC motor control system model was built. The simulation results was in accordance with theoretical analysis. Three-level control theoretical rationality and effectiveness was verified.
出处
《微特电机》
北大核心
2014年第1期60-62,共3页
Small & Special Electrical Machines
