Optimal Design and Control of MMC STATCOM for Improving Power Quality Indicators
In recent years, modular multilevel converters (MMC) are becoming popular in the distribution and transmission of electrical systems. The multilevel converter suffers from circulating current within the converter that increases the conduction loss of switches and increases the thermal stress on the...
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doaj-f42cea6053b7423d9a95b4b3b476b8a62020-11-25T02:10:45ZengMDPI AGApplied Sciences2076-34172020-04-01102490249010.3390/app10072490Optimal Design and Control of MMC STATCOM for Improving Power Quality IndicatorsAhmed A. Zaki Diab0Terad Ebraheem1Raseel Aljendy2Hamdy M. Sultan3Ziad M. Ali4Electrical Engineering Department, Faculty of Engineering, Minia University, Minia 61111, EgyptElectrical Engineering Department, Faculty of Engineering, Tishreen University, Latakia 2237, SyriaElectrical power systems Department, Moscow Power Engineering Institute “MPEI”, Moscow 111250, RussiaElectrical Engineering Department, Faculty of Engineering, Minia University, Minia 61111, EgyptCollege of Engineering at Wadi Addawaser, Prince Sattam bin Abdulaziz University, Wadi Aldawaser 11991, Saudi ArabiaIn recent years, modular multilevel converters (MMC) are becoming popular in the distribution and transmission of electrical systems. The multilevel converter suffers from circulating current within the converter that increases the conduction loss of switches and increases the thermal stress on the capacitors and switches’ IGBTs. One of the main solutions to control the circulating current is to keep the capacitor voltage balanced in the MMC. In this paper, a new hybrid control algorithm for the cascaded modular multilevel converter is presented. The Harris hawk’s optimization (HHO) and Atom search optimization (ASO) are used to optimally design the controller of the hybrid MMC. The proposed structure of modular multilevel inverters allows effective operation, a low level of harmonic distortion in the absence of output voltage filters, a low switching frequency, and excellent flexibility to achieve the requirements of any voltage level. The effectiveness of the proposed controller and the multilevel converter has been verified through testing with the application of the MMC-static synchronous compensator (STATCOM). The stability of the voltage capacitors was monitored with balanced and unbalanced loads on the studied network.https://www.mdpi.com/2076-3417/10/7/2490modular multilevel converterSTATCOMoptimizationharmonicsHarris Hawk’s optimizationAtom search optimization |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ahmed A. Zaki Diab Terad Ebraheem Raseel Aljendy Hamdy M. Sultan Ziad M. Ali |
spellingShingle |
Ahmed A. Zaki Diab Terad Ebraheem Raseel Aljendy Hamdy M. Sultan Ziad M. Ali Optimal Design and Control of MMC STATCOM for Improving Power Quality Indicators Applied Sciences modular multilevel converter STATCOM optimization harmonics Harris Hawk’s optimization Atom search optimization |
author_facet |
Ahmed A. Zaki Diab Terad Ebraheem Raseel Aljendy Hamdy M. Sultan Ziad M. Ali |
author_sort |
Ahmed A. Zaki Diab |
title |
Optimal Design and Control of MMC STATCOM for Improving Power Quality Indicators |
title_short |
Optimal Design and Control of MMC STATCOM for Improving Power Quality Indicators |
title_full |
Optimal Design and Control of MMC STATCOM for Improving Power Quality Indicators |
title_fullStr |
Optimal Design and Control of MMC STATCOM for Improving Power Quality Indicators |
title_full_unstemmed |
Optimal Design and Control of MMC STATCOM for Improving Power Quality Indicators |
title_sort |
optimal design and control of mmc statcom for improving power quality indicators |
publisher |
MDPI AG |
series |
Applied Sciences |
issn |
2076-3417 |
publishDate |
2020-04-01 |
description |
In recent years, modular multilevel converters (MMC) are becoming popular in the distribution and transmission of electrical systems. The multilevel converter suffers from circulating current within the converter that increases the conduction loss of switches and increases the thermal stress on the capacitors and switches’ IGBTs. One of the main solutions to control the circulating current is to keep the capacitor voltage balanced in the MMC. In this paper, a new hybrid control algorithm for the cascaded modular multilevel converter is presented. The Harris hawk’s optimization (HHO) and Atom search optimization (ASO) are used to optimally design the controller of the hybrid MMC. The proposed structure of modular multilevel inverters allows effective operation, a low level of harmonic distortion in the absence of output voltage filters, a low switching frequency, and excellent flexibility to achieve the requirements of any voltage level. The effectiveness of the proposed controller and the multilevel converter has been verified through testing with the application of the MMC-static synchronous compensator (STATCOM). The stability of the voltage capacitors was monitored with balanced and unbalanced loads on the studied network. |
topic |
modular multilevel converter STATCOM optimization harmonics Harris Hawk’s optimization Atom search optimization |
url |
https://www.mdpi.com/2076-3417/10/7/2490 |
work_keys_str_mv |
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