无刷直流电机的定频积分控制

摘要

A constant frequency integration control method was proposed for brushless DC motor.Making use of the mathematical model and the dynamic equation of the star-type three-phase six-state BLDCM,the relationship between the motor speed,the load torque,the motor parameters and inverter duty cycle was analyzed.Appling constant frequency integration control theory,the motor speed control can be achieved by adjusting the duty cycle.Finally,the presented BLDCM constant frequency integration control method was simulated,and the simulation results confirmed the validity and feasibility of the theoretical analysis.%为改善无刷直流电机(BLDCM)调速系统的性能,提出了BLDCM的定频积分控制方法.利用星型三相六状态BLDCM的数学模型和动态方程,分析了BLDCM速度、负载转矩、电机自身参数和逆变器占空比之间的关系,提出了运用定频积分控制原理,通过调节占空比实现对电机速度的控制.对提出的BLDCM定频积分控制方法进行了仿真研究,仿真结果验证了理论分析的正确性与可行性.