基于参考电压的感应电机预测电流占空比控制

Xuliang Yao, Tongzhen Liu, Jingfang Wang, He Ma, Shengqi Huang
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引用次数: 0

摘要

模型预测电流控制在感应电机驱动领域受到了广泛的关注。然而,大多数方法都是基于枚举和代价函数来选择电压矢量,这大大增加了控制系统的复杂性。为了降低控制复杂度,进一步提高稳态控制性能,提出了一种基于参考电压的预测电流占空比控制方法(pcdc - rv)。根据合成参考电压的位置确定外加电压矢量,从而取消了复杂的枚举过程。此外,根据所选矢量与参考电压之间误差最小的原则计算控制占空比。与传统方法相比,该方法在电压矢量选择和占空比计算上更加方便,获得了更好的控制性能。最后,仿真结果验证了该方法的有效性。
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Predictive Current Duty Cycle Control for Induction Motor Based on Reference Voltage
Model predictive current control has received a great deal of attention in the field of induction motor drives. However, the most methods select voltage vectors based on enumeration and cost function, so it greatly increases control system complexity. In order to reduce control complexity and further improve steady-state control performance, a predictive current duty cycle control based on the reference voltage (PCDCC-RV) is proposed in this paper. The applied voltage vector is determined based on the location of the synthesized reference voltage, so the complicated enumeration process is cancelled. In addition, the control duty cycle is calculated based on the principle of minimum error between the selected vector and reference voltage. Compared with the traditional method, the proposed method of voltage vector selection and duty cycle calculation are more convenient, and the better control performance is obtained. Finally, simulation results prove its effectiveness.
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