Dual-voltage vector modulation model predictive control method for permanent magnet synchronous motor

The invention relates to a permanent magnet synchronous motor double-voltage vector modulation model predictive control method, which is characterized in that a single voltage vector in the prior art is changed into double voltage vectors, and the double vectors are combined with a duty ratio through a calculation method of constructing a cost function and introducing the duty ratio, so that current control harmonics are reduced; the dynamic response speed is improved, a discontinuous modulation strategy, namely a DPWM control strategy, can be introduced after the duty ratio is generated, the switching frequency is reduced, the switching loss of the system is reduced, and the efficiency of the controller is improved. 本发明涉及一种永磁同步电机双电压矢量调制模型预测控制方法，该方法通过将原有技术中的单一电压矢量变为双电压矢量，同时通过构建代价函数，引入占空比的计算方法，将双矢量与占空比结合，减小电流控制谐波，提高其动态响应速度，在生成占空比后可以引入不连续调制策略，即DPWM控制策略，减少开关次数，降低系统开关损耗，提高控制器效率。