基于电压定向控制的三电平整流器模糊控制与PI控制的比较

2016 IEEE International Conference on Power and Energy (PECon) Pub Date : 2016-11-01 DOI:10.1109/PECON.2016.7951546

K. Y. Ahmed, N. Yahaya, V. Asirvadam, K. Ramani, O. Ibrahim

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引用次数: 8

摘要

本文提出了一种采用模糊逻辑控制策略的三电平三相PWM整流器的电压定向控制(VOC)。以模糊控制取代PI控制，降低电网侧总谐波失真(THD)，提高功率因数(PF)，并在发生动态扰动时将输出直流电压保持在要求的水平。利用MATLAB/Simulink和模糊逻辑工具箱对该控制器的稳态和瞬态行为进行了研究。结果表明，模糊控制器比传统的PI控制器性能要好得多，并且模糊控制器在瞬态状态下具有优异的性能。

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Comparison of fuzzy logic control and PI control for a three-level rectifier based on voltage oriented control

This paper presents a voltage oriented control (VOC) for a three level, three-phase PWM rectifier using a fuzzy logic control strategy. The PI control was replaced by fuzzy control aimed to reduce the total harmonic distortion (THD) on the grid side, to improve the power factor (PF) as well as keep the output DC voltage to the required level when a dynamic disturbance happens. The MATLAB/Simulink and fuzzy logic toolboxes have been used to investigate the steady-state and transient-state behaviors for the proposed controller. As the result shows, it was verified that the fuzzy logic controller is much better than the traditional PI controller, and the fuzzy logic controller provides a stellar performance in the transient state.

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2016 IEEE International Conference on Power and Energy (PECon)

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