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首页> 外文期刊>Engineering Review >AN IMPROVED THREE-LEVEL DIRECT TORQUE CONTROL METHOD OF BRUSHLESS DOUBLY-FED MACHINE BASED ON THE FIXED SYNTHESIZING VECTOR
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AN IMPROVED THREE-LEVEL DIRECT TORQUE CONTROL METHOD OF BRUSHLESS DOUBLY-FED MACHINE BASED ON THE FIXED SYNTHESIZING VECTOR

机译：基于固定合成矢量的无刷双馈电机改进的三级直接转矩控制方法

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摘要

With the rapid growth of an AC adjusted speed system application, it is necessary to control and reduce harmonic pollution since the problem brought about by the device of power electronics not only blocks the development of power electronics technology, but also causes severe harm in an electric power system. In this paper an improved three-level direct torque algorithm for brushless doubly-fed machines has been developed for reducing the torque and flux ripples in a brushless doubly-fed machine. This method based on 48 fixed synthesizing vectors is implemented in the brushless doubly-fed machine. Compared with the traditional two-level direct torque control algorithm, this new method broadens the selection range on voltage vectors. It also effectively reduces the torque ripples and improves the properties of the magnetic chain track. In addition, this algorithm improves the dynamic performance and robustness of both the brushless doubly-fed machine and its control system. To validate the proposed method, some mathematic simulations have been done so that the simulation results have shown the effectiveness of the proposed method. Moreover, this proposed method has been implemented in the brushless doubly-fed machine system showing an enhancement in the motor performance.
机译：随着交流调速系统应用的快速增长，有必要控制和减少谐波污染，因为电力电子设备带来的问题不仅阻碍了电力电子技术的发展，而且还严重破坏了电力。电源系统。在本文中，为减少无刷双馈电机的转矩和磁通波动，开发了一种改进的三级直接转矩算法，用于无刷双馈电机。这种基于48个固定合成矢量的方法是在无刷双馈电机中实现的。与传统的两级直接转矩控制算法相比，该新方法拓宽了电压矢量的选择范围。它还可以有效地减少转矩波动并改善磁链轨道的性能。另外，该算法提高了无刷双馈电机及其控制系统的动态性能和鲁棒性。为了验证该方法的有效性，进行了一些数学仿真，仿真结果表明了该方法的有效性。此外，该提议的方法已经在无刷双馈电机系统中实现，该电机系统显示出电动机性能的增强。

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