模块化多电平变换器内部电流抑制的超扭滑模控制

2020 3rd International Conference on Computing, Mathematics and Engineering Technologies (iCoMET) Pub Date : 2020-01-01 DOI:10.1109/iCoMET48670.2020.9073851

W. Uddin, M. Ishfaq, K. Zeb, S. Islam, Hee Je Kim, M. Khan, Z. Ullah, I. Khan, Khadim Ullah Jan, Muhammad Asim Sarwar

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引用次数: 1

摘要

模块化多电平变换器(MMC)由于其灵活性、低额定器件的使用、低谐波失真和高效率而受到广泛欢迎。尽管有这些优点，但MMC在控制其参数，特别是内部电流和电容器电压方面面临着挑战。本文采用滑模控制器(SMC)对MMC的内部电流进行控制。SMC的开关函数是基于二阶超扭转算法的。所提出的超扭转算法在控制内部电流方面是有效的。二阶谐波被有效抑制，内部电流完全收敛到参考值。此外，超扭转算法的连续特性解决了抖振问题。在MATLAB/Simulink中实现了MMC及其控制。

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Super twisting sliding mode control for inner current suppression of Modular Multilevel Converter

Modular Multilevel Converter (MMC) is very popular due to its flexibility, use of low rating devices, low harmonic distortion, and high efficiency. Despite these advantages, MMC faces challenges of controlling its parameters especially inner current and capacitor voltages. This paper presents the control of the inner current of MMC using Sliding Mode Controller (SMC). The switching function of SMC is based on 2nd order super twisting algorithm. The Proposed super twisting algorithm is proved to be efficient in controlling the inner current. The 2nd order harmonic is effectively suppressed, and the inner current is fully converged to its reference value. Moreover, the continuous nature of the super twisting algorithm solves the chattering issue. The implementation of MMC and its control is carried out in MATLAB/Simulink.

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2020 3rd International Conference on Computing, Mathematics and Engineering Technologies (iCoMET)

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