Fast and simple tuning rules of synchronous reference frame proportional-integral current controller

Synchronous reference frame proportional-integral (PI) current controller (CC) is considered the most well-established solution for the current regulation in electrical drives. However, the gain selection of the PI CC is still regarded to be poorly reported, particularly in relation to the effect of...

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Main Authors: Diab, Ahmed.M, Bozhko, Serhiy, Guo, Feng, Rashed, Mohamed, Buticchi, Giampaolo, Xu, Zhuang, Yeoh, Seang Shen, Gerada, Chris, Galea, Michael
Format: Article
Language:English
Published: 2021
Subjects:
Online Access:https://eprints.nottingham.ac.uk/64618/
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author Diab, Ahmed.M
Bozhko, Serhiy
Guo, Feng
Rashed, Mohamed
Buticchi, Giampaolo
Xu, Zhuang
Yeoh, Seang Shen
Gerada, Chris
Galea, Michael
author_facet Diab, Ahmed.M
Bozhko, Serhiy
Guo, Feng
Rashed, Mohamed
Buticchi, Giampaolo
Xu, Zhuang
Yeoh, Seang Shen
Gerada, Chris
Galea, Michael
author_sort Diab, Ahmed.M
building Nottingham Research Data Repository
collection Online Access
description Synchronous reference frame proportional-integral (PI) current controller (CC) is considered the most well-established solution for the current regulation in electrical drives. However, the gain selection of the PI CC is still regarded to be poorly reported, particularly in relation to the effect of the inevitable execution time taken by the controller and inverter. Mostly, tuning process of PI CC is done by trial and error or using simple rules based on pole zero cancelation and pole placement methods which ignore time delays through the controller and inverter. Hence, PI CC delivers significantly different performance compared to the expected one during the digital implementation, especially if high bandwidth or low ratio between the switching and operational frequency are required. Therefore, this paper firstly addresses and analyses the common tuning rules of PI CC which ignore the existence of time delays followed by a rigorous analysis for PI CCs’ robustness to the influence of computational and modulation delays. Based on this analysis, generic recommendations have been proposed to select the PI CCs’ gains as a function of the electrical drive switching frequency considering the delay effect. A set of simple, generic, and fast tuning rules were derived that guarantee fast dynamic performance with reasonable stability margins. Moreover, the effects of model uncertainties on these developed rules have been analyzed and reported. Comprehensive experimental results are provided to prove the key analytical results of this study and to validate the proposed design recommendations.
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spelling nottingham-646182021-02-26T06:00:25Z https://eprints.nottingham.ac.uk/64618/ Fast and simple tuning rules of synchronous reference frame proportional-integral current controller Diab, Ahmed.M Bozhko, Serhiy Guo, Feng Rashed, Mohamed Buticchi, Giampaolo Xu, Zhuang Yeoh, Seang Shen Gerada, Chris Galea, Michael Synchronous reference frame proportional-integral (PI) current controller (CC) is considered the most well-established solution for the current regulation in electrical drives. However, the gain selection of the PI CC is still regarded to be poorly reported, particularly in relation to the effect of the inevitable execution time taken by the controller and inverter. Mostly, tuning process of PI CC is done by trial and error or using simple rules based on pole zero cancelation and pole placement methods which ignore time delays through the controller and inverter. Hence, PI CC delivers significantly different performance compared to the expected one during the digital implementation, especially if high bandwidth or low ratio between the switching and operational frequency are required. Therefore, this paper firstly addresses and analyses the common tuning rules of PI CC which ignore the existence of time delays followed by a rigorous analysis for PI CCs’ robustness to the influence of computational and modulation delays. Based on this analysis, generic recommendations have been proposed to select the PI CCs’ gains as a function of the electrical drive switching frequency considering the delay effect. A set of simple, generic, and fast tuning rules were derived that guarantee fast dynamic performance with reasonable stability margins. Moreover, the effects of model uncertainties on these developed rules have been analyzed and reported. Comprehensive experimental results are provided to prove the key analytical results of this study and to validate the proposed design recommendations. 2021-01-27 Article PeerReviewed application/pdf en cc_by https://eprints.nottingham.ac.uk/64618/2/FINAL%20Article%20-%20for_eprint.pdf Diab, Ahmed.M, Bozhko, Serhiy, Guo, Feng, Rashed, Mohamed, Buticchi, Giampaolo, Xu, Zhuang, Yeoh, Seang Shen, Gerada, Chris and Galea, Michael (2021) Fast and simple tuning rules of synchronous reference frame proportional-integral current controller. IEEE Access, 9 . pp. 22156-22170. ISSN 2169-3536 Current control delay effect synchronous reference frame AC drive system. http://dx.doi.org/10.1109/ACCESS.2021.3054845 doi:10.1109/ACCESS.2021.3054845 doi:10.1109/ACCESS.2021.3054845
spellingShingle Current control
delay effect
synchronous reference frame
AC drive system.
Diab, Ahmed.M
Bozhko, Serhiy
Guo, Feng
Rashed, Mohamed
Buticchi, Giampaolo
Xu, Zhuang
Yeoh, Seang Shen
Gerada, Chris
Galea, Michael
Fast and simple tuning rules of synchronous reference frame proportional-integral current controller
title Fast and simple tuning rules of synchronous reference frame proportional-integral current controller
title_full Fast and simple tuning rules of synchronous reference frame proportional-integral current controller
title_fullStr Fast and simple tuning rules of synchronous reference frame proportional-integral current controller
title_full_unstemmed Fast and simple tuning rules of synchronous reference frame proportional-integral current controller
title_short Fast and simple tuning rules of synchronous reference frame proportional-integral current controller
title_sort fast and simple tuning rules of synchronous reference frame proportional-integral current controller
topic Current control
delay effect
synchronous reference frame
AC drive system.
url https://eprints.nottingham.ac.uk/64618/
https://eprints.nottingham.ac.uk/64618/
https://eprints.nottingham.ac.uk/64618/