Investigate on a Simplified Multi-Port Interline DC Power Flow Controller and Its Control Strategy

A DC power flow controller (DCPFC) can help to facilitate power flow routing in the multi-terminal high-voltage direct current (HVDC) transmission system. Realizing its multi-port output can effectively improve the device regulate range and capability. Based on analysis of the traditional multi-port...

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Main Authors: Wen Wu, Xuezhi Wu, Long Jing, Jingyuan Yin
Format: Article
Language:English
Published: MDPI AG 2019-06-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/12/13/2480
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author Wen Wu
Xuezhi Wu
Long Jing
Jingyuan Yin
author_facet Wen Wu
Xuezhi Wu
Long Jing
Jingyuan Yin
author_sort Wen Wu
collection DOAJ
description A DC power flow controller (DCPFC) can help to facilitate power flow routing in the multi-terminal high-voltage direct current (HVDC) transmission system. Realizing its multi-port output can effectively improve the device regulate range and capability. Based on analysis of the traditional multi-port interline DC power flow controller (MI-DCPFC), this paper presents a switches reduced topology of MI-DCPFC. In addition, for solving the problem of coupling of the port-output voltage of the traditional MI-DCPFC, a novel control strategy based on carrier phase shifting pulse width modulation (CPS-PWM) is proposed. It implements the decoupling of the port-output voltage of MI-DCPFC, which can ensure completely independent tracking of the power flow regulating commands for different controlled lines. Moreover, key relationships between the system state variables are also analyzed and detailed in this study. Finally, the performance of the proposed controller and control strategy are confirmed with the simulation and experiment studies under different conditions.
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spelling doaj.art-6944fcde4f1f4c87a52871b4d883afea2022-12-22T01:58:30ZengMDPI AGEnergies1996-10732019-06-011213248010.3390/en12132480en12132480Investigate on a Simplified Multi-Port Interline DC Power Flow Controller and Its Control StrategyWen Wu0Xuezhi Wu1Long Jing2Jingyuan Yin3National Active Distribution Network Technology Research Center, Beijing Jiaotong University, Beijing 100044, ChinaNational Active Distribution Network Technology Research Center, Beijing Jiaotong University, Beijing 100044, ChinaNational Active Distribution Network Technology Research Center, Beijing Jiaotong University, Beijing 100044, ChinaThe Institute of Electrical Engineering Chinese Academy of Sciences, Beijing 100190, ChinaA DC power flow controller (DCPFC) can help to facilitate power flow routing in the multi-terminal high-voltage direct current (HVDC) transmission system. Realizing its multi-port output can effectively improve the device regulate range and capability. Based on analysis of the traditional multi-port interline DC power flow controller (MI-DCPFC), this paper presents a switches reduced topology of MI-DCPFC. In addition, for solving the problem of coupling of the port-output voltage of the traditional MI-DCPFC, a novel control strategy based on carrier phase shifting pulse width modulation (CPS-PWM) is proposed. It implements the decoupling of the port-output voltage of MI-DCPFC, which can ensure completely independent tracking of the power flow regulating commands for different controlled lines. Moreover, key relationships between the system state variables are also analyzed and detailed in this study. Finally, the performance of the proposed controller and control strategy are confirmed with the simulation and experiment studies under different conditions.https://www.mdpi.com/1996-1073/12/13/2480multi-terminal HVDC transmission systemDC power flow controlmulti-port topologydecouplingcontrol strategy
spellingShingle Wen Wu
Xuezhi Wu
Long Jing
Jingyuan Yin
Investigate on a Simplified Multi-Port Interline DC Power Flow Controller and Its Control Strategy
Energies
multi-terminal HVDC transmission system
DC power flow control
multi-port topology
decoupling
control strategy
title Investigate on a Simplified Multi-Port Interline DC Power Flow Controller and Its Control Strategy
title_full Investigate on a Simplified Multi-Port Interline DC Power Flow Controller and Its Control Strategy
title_fullStr Investigate on a Simplified Multi-Port Interline DC Power Flow Controller and Its Control Strategy
title_full_unstemmed Investigate on a Simplified Multi-Port Interline DC Power Flow Controller and Its Control Strategy
title_short Investigate on a Simplified Multi-Port Interline DC Power Flow Controller and Its Control Strategy
title_sort investigate on a simplified multi port interline dc power flow controller and its control strategy
topic multi-terminal HVDC transmission system
DC power flow control
multi-port topology
decoupling
control strategy
url https://www.mdpi.com/1996-1073/12/13/2480
work_keys_str_mv AT wenwu investigateonasimplifiedmultiportinterlinedcpowerflowcontrolleranditscontrolstrategy
AT xuezhiwu investigateonasimplifiedmultiportinterlinedcpowerflowcontrolleranditscontrolstrategy
AT longjing investigateonasimplifiedmultiportinterlinedcpowerflowcontrolleranditscontrolstrategy
AT jingyuanyin investigateonasimplifiedmultiportinterlinedcpowerflowcontrolleranditscontrolstrategy