Control Strategy of Three-Phase Inverter with Isolation Transformer

In order to improve the control performance of a train auxiliary inverter and satisfy the requirements of power quality, harmonics, and unbalanced factor, this paper proposed a design method of a double closed-loop control system based on a complex state variable structure. The method simplifies the...

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Main Authors: Jie Chen, Jun Li, Ruichang Qiu, Zhigang Liu
Format: Article
Language:English
Published: MDPI AG 2019-10-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/12/20/4005
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author Jie Chen
Jun Li
Ruichang Qiu
Zhigang Liu
author_facet Jie Chen
Jun Li
Ruichang Qiu
Zhigang Liu
author_sort Jie Chen
collection DOAJ
description In order to improve the control performance of a train auxiliary inverter and satisfy the requirements of power quality, harmonics, and unbalanced factor, this paper proposed a design method of a double closed-loop control system based on a complex state variable structure. The method simplifies the design process and takes full account of the effects of coupling and discretization. In the current closed-loop process, this paper analyzed the limitations of the proportional integral (PI) controller and simplified to P controller. In the voltage closed-loop, the paper employed the PI controller plus the resonant controller, designed the parameters of the PI controller. and analyzed the optimal discretization method of the resonant controller under dq axis coupling. Finally, experiments and simulations were conducted to show that the proposed method can achieve the above improvements.
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spelling doaj.art-66370933a3eb4787ab247192e450a2632022-12-22T04:19:44ZengMDPI AGEnergies1996-10732019-10-011220400510.3390/en12204005en12204005Control Strategy of Three-Phase Inverter with Isolation TransformerJie Chen0Jun Li1Ruichang Qiu2Zhigang Liu3Department of Electrical Engineering, Beijing Jiaotong University, No. 3 Shangyuancun, Beijing 100044, ChinaDepartment of Electrical Engineering, Beijing Jiaotong University, No. 3 Shangyuancun, Beijing 100044, ChinaDepartment of Electrical Engineering, Beijing Jiaotong University, No. 3 Shangyuancun, Beijing 100044, ChinaBeijing rail transit Electrical Engineering Technology Research Center, Beijing 100044, ChinaIn order to improve the control performance of a train auxiliary inverter and satisfy the requirements of power quality, harmonics, and unbalanced factor, this paper proposed a design method of a double closed-loop control system based on a complex state variable structure. The method simplifies the design process and takes full account of the effects of coupling and discretization. In the current closed-loop process, this paper analyzed the limitations of the proportional integral (PI) controller and simplified to P controller. In the voltage closed-loop, the paper employed the PI controller plus the resonant controller, designed the parameters of the PI controller. and analyzed the optimal discretization method of the resonant controller under dq axis coupling. Finally, experiments and simulations were conducted to show that the proposed method can achieve the above improvements.https://www.mdpi.com/1996-1073/12/20/4005rail transportationauxiliary inverterisolation transformerresonant controllercomplex load
spellingShingle Jie Chen
Jun Li
Ruichang Qiu
Zhigang Liu
Control Strategy of Three-Phase Inverter with Isolation Transformer
Energies
rail transportation
auxiliary inverter
isolation transformer
resonant controller
complex load
title Control Strategy of Three-Phase Inverter with Isolation Transformer
title_full Control Strategy of Three-Phase Inverter with Isolation Transformer
title_fullStr Control Strategy of Three-Phase Inverter with Isolation Transformer
title_full_unstemmed Control Strategy of Three-Phase Inverter with Isolation Transformer
title_short Control Strategy of Three-Phase Inverter with Isolation Transformer
title_sort control strategy of three phase inverter with isolation transformer
topic rail transportation
auxiliary inverter
isolation transformer
resonant controller
complex load
url https://www.mdpi.com/1996-1073/12/20/4005
work_keys_str_mv AT jiechen controlstrategyofthreephaseinverterwithisolationtransformer
AT junli controlstrategyofthreephaseinverterwithisolationtransformer
AT ruichangqiu controlstrategyofthreephaseinverterwithisolationtransformer
AT zhigangliu controlstrategyofthreephaseinverterwithisolationtransformer