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A comparative experimental analysis of fractional order PI controller based direct torque control scheme for induction motor drive
International Transactions on Electrical Energy Systems ( IF 1.9 ) Pub Date : 2020-11-17 , DOI: 10.1002/2050-7038.12705 Obbu Chandra Sekhar 1 , Suresh Lakhimsetty 2 , Abdul Hamid Bhat 1
International Transactions on Electrical Energy Systems ( IF 1.9 ) Pub Date : 2020-11-17 , DOI: 10.1002/2050-7038.12705 Obbu Chandra Sekhar 1 , Suresh Lakhimsetty 2 , Abdul Hamid Bhat 1
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This article proposes a fractional order (FO) PI controller based direct torque control (DTC) scheme for an induction motor (IM) drive. The induction motor fed with two‐level voltage source inverter. The drawbacks associated with the conventional PI controller like addition of DC drift and poor dynamic performance are avoided with the proposed fractional order PI controllers. The DTC scheme provides the required voltage space vector to compensate the torque and flux errors, which are the outputs of the FOPI controller. The obtained voltage space vector is used to generate the modulating wave forms. The necessary gating signals are generated for the voltage source inverter using space vector modulation (SVM) technique. The FOPI controller with DTC‐SVM improves the dynamic performance as well as compensates the steady state error produced in both electromagnetic torque and the stator flux. The IM performance is assessed during starting, running, and speed reversal along with the step change in the load torque. The simulation results are presented, to confirm the performance of the IM drive with FOPI controller. The simulation results are validated with the experimental results.
中文翻译：
基于分数阶PI控制器的异步电动机驱动直接转矩控制方案的对比实验分析
本文提出了一种基于分数阶（FO）PI控制器的感应电动机（IM）驱动器直接转矩控制（DTC）方案。感应电动机装有两级电压源逆变器。提出的分数阶PI控制器可避免与常规PI控制器相关的缺点，例如增加直流漂移和较差的动态性能。DTC方案提供了所需的电压空间矢量，以补偿转矩和磁通误差，这是FOPI控制器的输出。所获得的电压空间矢量用于生成调制波形。使用空间矢量调制（SVM）技术为电压源逆变器生成必要的门控信号。带有DTC-SVM的FOPI控制器改善了动态性能，并补偿了电磁转矩和定子磁通中产生的稳态误差。IM性能在启动，运行和速度反转期间以及负载转矩的阶跃变化中进行评估。给出了仿真结果，以确认具有FOPI控制器的IM驱动器的性能。实验结果验证了仿真结果。
更新日期：2021-01-12
中文翻译：
基于分数阶PI控制器的异步电动机驱动直接转矩控制方案的对比实验分析
本文提出了一种基于分数阶（FO）PI控制器的感应电动机（IM）驱动器直接转矩控制（DTC）方案。感应电动机装有两级电压源逆变器。提出的分数阶PI控制器可避免与常规PI控制器相关的缺点，例如增加直流漂移和较差的动态性能。DTC方案提供了所需的电压空间矢量，以补偿转矩和磁通误差，这是FOPI控制器的输出。所获得的电压空间矢量用于生成调制波形。使用空间矢量调制（SVM）技术为电压源逆变器生成必要的门控信号。带有DTC-SVM的FOPI控制器改善了动态性能，并补偿了电磁转矩和定子磁通中产生的稳态误差。IM性能在启动，运行和速度反转期间以及负载转矩的阶跃变化中进行评估。给出了仿真结果，以确认具有FOPI控制器的IM驱动器的性能。实验结果验证了仿真结果。
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