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A model predictive current control method of PMSM based on the simultaneous optimization of voltage vector and duty cycle

机译：基于电压矢量和占空比同步优化的永磁同步电机模型预测电流控制方法

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摘要

In the traditional duty cycle model predictive current control (MPCC), there are still large current ripples because voltage vector and duty cycle is optimized separately, which cannot ensure the applied voltage vector is global optimization. An MPCC method of permanent magnet synchronous motor (PMSM) based on the simultaneous optimization of voltage vector and duty cycle is proposed in this paper. In the proposed MPCC method, the duration of every active-vector is calculated based on the principle of deadbeat q-axis current control firstly. Then, both voltage vector and voltage vector duration are optimized simultaneously in the cost function. Simulation results show that, compared to the traditional duty cycle MPCC, the proposed MPCC method achieve lower current ripples and less current harmonics.
机译：在传统的占空比模型预测电流控制（MPCC）中，由于电压矢量和占空比是分别优化的，因此仍然存在较大的电流纹波，这不能确保所施加的电压矢量是全局优化的。提出了一种基于电压矢量和占空比同步优化的永磁同步电动机（MPSM）的MPCC方法。在所提出的MPCC方法中，首先基于无差拍q轴电流控制原理来计算每个有效矢量的持续时间。然后，在成本函数中同时优化电压矢量和电压矢量持续时间。仿真结果表明，与传统的占空比MPCC相比，所提出的MPCC方法实现了更低的电流纹波和更低的电流谐波。

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