Research on Simulation Technology and Coordinated Control Strategy of Multi-voltage DC Grid

Multi-voltage DC (MVDC) grid is an important application of DC transmission technology in the future, and its key equipment is DC transformer. However, the electromagnetic simulation model of the HVDC grid is large in scale and its coordinated control strategy in the context of transformers is still...

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Main Authors: ZHENG Mei, CHEN Qian, SONG Yuanjian, XU Zheng, ZHANG Zheren
Format: Article
Language:zho
Published: zhejiang electric power 2022-02-01
Series:Zhejiang dianli
Subjects:
Online Access:https://zjdl.cbpt.cnki.net/WKE3/WebPublication/paperDigest.aspx?paperID=cb897d1d-44b1-4c5c-b8d0-b250e72760b4
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author ZHENG Mei
CHEN Qian
SONG Yuanjian
XU Zheng
ZHANG Zheren
author_facet ZHENG Mei
CHEN Qian
SONG Yuanjian
XU Zheng
ZHANG Zheren
author_sort ZHENG Mei
collection DOAJ
description Multi-voltage DC (MVDC) grid is an important application of DC transmission technology in the future, and its key equipment is DC transformer. However, the electromagnetic simulation model of the HVDC grid is large in scale and its coordinated control strategy in the context of transformers is still unclear. First, the operating principle of modular combined DC transformer (MCT) is briefly introduced; then based on the average switching function, an efficient equivalent model (EEM) of MMC bridge arms is proposed to accelerate the electromagnetic transient simulation. Finally, the coordinated control strategy of the MVDC grid with the MCT is studied. The EEM of MMC bridge arms and a multi-voltage DC grid simulation model are built in PSCAD/EMTDC to verify the EEM of MMC bridge arms and the effectiveness of the coordinated control strategy.
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spelling doaj.art-6f6b4bcf15894c8d8bbfd7b4d716408a2022-12-22T01:28:24Zzhozhejiang electric powerZhejiang dianli1007-18812022-02-0141271310.19585/j.zjdl.2022020021007-1881(2022)02-0007-07Research on Simulation Technology and Coordinated Control Strategy of Multi-voltage DC GridZHENG Mei0CHEN Qian1SONG Yuanjian2XU Zheng3ZHANG Zheren4State Grid Zhejiang Electric Power Co., Ltd. Research Institute, Hangzhou 310014, ChinaState Grid Zhejiang Electric Power Co., Ltd. Research Institute, Hangzhou 310014, ChinaCollege of Electrical Engineering, Zhejiang University, Hangzhou 310027, ChinaCollege of Electrical Engineering, Zhejiang University, Hangzhou 310027, ChinaCollege of Electrical Engineering, Zhejiang University, Hangzhou 310027, ChinaMulti-voltage DC (MVDC) grid is an important application of DC transmission technology in the future, and its key equipment is DC transformer. However, the electromagnetic simulation model of the HVDC grid is large in scale and its coordinated control strategy in the context of transformers is still unclear. First, the operating principle of modular combined DC transformer (MCT) is briefly introduced; then based on the average switching function, an efficient equivalent model (EEM) of MMC bridge arms is proposed to accelerate the electromagnetic transient simulation. Finally, the coordinated control strategy of the MVDC grid with the MCT is studied. The EEM of MMC bridge arms and a multi-voltage DC grid simulation model are built in PSCAD/EMTDC to verify the EEM of MMC bridge arms and the effectiveness of the coordinated control strategy.https://zjdl.cbpt.cnki.net/WKE3/WebPublication/paperDigest.aspx?paperID=cb897d1d-44b1-4c5c-b8d0-b250e72760b4mctmmcefficient equivalent model (eem) of mmc bridge armsmvdc gridcoordinated control strategy
spellingShingle ZHENG Mei
CHEN Qian
SONG Yuanjian
XU Zheng
ZHANG Zheren
Research on Simulation Technology and Coordinated Control Strategy of Multi-voltage DC Grid
Zhejiang dianli
mct
mmc
efficient equivalent model (eem) of mmc bridge arms
mvdc grid
coordinated control strategy
title Research on Simulation Technology and Coordinated Control Strategy of Multi-voltage DC Grid
title_full Research on Simulation Technology and Coordinated Control Strategy of Multi-voltage DC Grid
title_fullStr Research on Simulation Technology and Coordinated Control Strategy of Multi-voltage DC Grid
title_full_unstemmed Research on Simulation Technology and Coordinated Control Strategy of Multi-voltage DC Grid
title_short Research on Simulation Technology and Coordinated Control Strategy of Multi-voltage DC Grid
title_sort research on simulation technology and coordinated control strategy of multi voltage dc grid
topic mct
mmc
efficient equivalent model (eem) of mmc bridge arms
mvdc grid
coordinated control strategy
url https://zjdl.cbpt.cnki.net/WKE3/WebPublication/paperDigest.aspx?paperID=cb897d1d-44b1-4c5c-b8d0-b250e72760b4
work_keys_str_mv AT zhengmei researchonsimulationtechnologyandcoordinatedcontrolstrategyofmultivoltagedcgrid
AT chenqian researchonsimulationtechnologyandcoordinatedcontrolstrategyofmultivoltagedcgrid
AT songyuanjian researchonsimulationtechnologyandcoordinatedcontrolstrategyofmultivoltagedcgrid
AT xuzheng researchonsimulationtechnologyandcoordinatedcontrolstrategyofmultivoltagedcgrid
AT zhangzheren researchonsimulationtechnologyandcoordinatedcontrolstrategyofmultivoltagedcgrid