Field Enhancing Model Predictive Direct Torque Control of Permanent Magnet Synchronous Machine
Field Enhancing Model Predictive Direct Torque Control of Permanent Magnet Synchronous Machine
复制标题
永磁同步电机磁场增强模型预测直接转矩控制
DOI：
10.1109/tec.2021.3070339
复制
发表时间：
2021-12
影响因子：
4.9
通讯作者：
Rodriguez Jose
中科院分区：
文献类型：
--
作者：
Zhang Kai;Fan Mingdi;Yong Yang;Zhu Zhongkui;Garcia Cristian;Rodriguez Jose
针对短期高转矩输出，提出了一种改进的模型预测直接转矩控制（MPDTC）方法。为了避免在增加转矩的同时可能出现的同步性损失，MPDTC方法在代价函数中限制了负载角。在恒负载角限制下，改进方法通过增大磁场来提高转矩输出能力。本文从转矩计算入手，从理论上分析了转矩-负载角特性，给出了带电压极限环和电流极限环的磁通矢量轨迹。该方法在保证系统稳定性的同时，保持了传统MPDTC方法的动态和静态性能。实验结果表明，该方法的转矩容量得到了提高，并具有稳定的极限输出转矩。因此，一些应用，如电动负载模拟器，可以选择容量小、惯量小的电机，从而减弱惯量转矩的负面影响。
For the short-term high torque output, an improved model predictive direct torque control (MPDTC) method with field enhancing is proposed to increase torque. In order to avoid the possible loss of synchronism while increasing torque, the MPDTC method limits the load angle in the cost function. Under the constant load angle limitation, the improved method increases the torque output capability by increasing the magnetic field. This paper starts from the torque calculation, theoretically analyzes the torque-load angle characteristics, and illustrates the flux vector trajectory with the voltage limit circle and current limit circle. The proposed method maintains the dynamic and static performance of the traditional MPDTC method while ensuring the system stability. The experimental results show that the torque capacity of the proposed method has been improved, and it has stable extreme output torque. So, some applications, such as electric load simulators, can choose the motor with small capacity and small inertia, thereby weakening negative effects of the inertia torque.