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Adaptive optimized DTC‐SVM using metaheuristic Bat algorithm for DSIM fed by IMC based on robust synergetic speed controller
International Transactions on Electrical Energy Systems ( IF 2.3 ) Pub Date : 2020-11-20 , DOI: 10.1002/2050-7038.12697
Yahia Moati 1 , Katia Kouzi 1 , Atif Iqbal 2
Affiliation  

Direct torque control (DTC) suffers from the large ripples of the torque and flux, which leads to deteriorating the system performances. Replacing the conventional back‐to‐back converter with an indirect matrix converter (IMC) can reduce the torque and flux ripples in interior dual stator induction motor. However, the ripples can be still large, and the low harmonic distortion appears in the input current caused by the lack of synchronization between the two stages of the IMC. In order to overcome this problem with improved dynamic performances (torque, flux ripples, and reducing the low harmonic distortion in the input current), a new DTC based on space vector modulation (SVM) with the synchronization between the two stage of IMC is proposed. On the other hand, an adaptive PI controller based on a gradient descent algorithm using metaheuristic Bat algorithm is presented to generate: the desired stator voltages, and the switching states of the inverter stage by the SVM. Furthermore, the control scheme performance is enhanced by inserting a robust synergetic controller (SC) in the outer loop for speed regulation. The obtained simulation results under different operating conditions illustrate the benefit of the proposed control technique, also, it demonstrates the feasibility of the proposed control approach for real‐world systems.

中文翻译:

基于鲁棒协同速度控制器的IMC馈给DSIM的,采用元启发式Bat算法的自适应优化DTC-SVM

直接转矩控制(DTC)受转矩和磁通的大波动影响,这会导致系统性能下降。用间接矩阵转换器(IMC)代替传统的背靠背转换器可以减少内部双定子感应电动机中的转矩和磁通波动。但是,纹波可能仍然很大,并且由于IMC的两级之间缺乏同步而在输入电流中出现了低谐波失真。为了通过改善动态性能(转矩,磁通波动和减少输入电流中的低谐波失真)来克服此问题,提出了一种新的基于空间矢量调制(SVM)且具有IMC两级同步的DTC。 。另一方面,提出了一种基于梯度下降算法的自适应PI控制器,该算法使用亚启发式Bat算法生成:所需的定子电压,以及由SVM生成的逆变器级的开关状态。此外,通过在外部环路中插入鲁棒的协同控制器(SC)进行速度调节,可以提高控制方案的性能。在不同的运行条件下获得的仿真结果说明了所提出的控制技术的好处,也证明了所提出的控制方法在实际系统中的可行性。
更新日期:2021-01-12
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