<trans-title>Research on Design of Guangzhou LCC-HVDC Converter Station Retrofit for VSC-HVDC Converter Station

Xianghao JIAN; Yuxin LU; Weihan HAO; Guanyan PENG

doi:10.16516/j.gedi.issn2095-8676.2020.04.008

SOUTHERN ENERGY CONSTRUCTION > 2020 > 7(4): 54-60. > DOI: 10.16516/j.gedi.issn2095-8676.2020.04.008 CSTR: 32391.14.j.gedi.issn2095-8676.2020.04.008

JIAN Xianghao,LU Yuxin,HAO Weihan,et al.Research on Design of Guangzhou LCC-HVDC Converter Station Retrofit for VSC-HVDC Converter Station[J].Southern Energy Construction,2020,07(04):54-60.. DOI: 10.16516/j.gedi.issn2095-8676.2020.04.008

Citation:

Research on Design of Guangzhou LCC-HVDC Converter Station Retrofit for VSC-HVDC Converter Station

1.
China Energy Engineering Group Guangdong Electric Power Design Institute Co.， Ltd.， Guangzhou 510663， China
2.
Electric Power Research Institute， CSG， Guangzhou 510080， China

More Information

Received Date: October 17, 2020
Revised Date: November 04, 2020

Abstract

Abstract

Introduction In order to avoid the commutation failures of receiving end convertor converter station in LCC-HVDC transmission systems， and to improve the voltage stability of receiving end converter station AC system， The research retrofitted Tianguang HVDC receiving end converter station for VSC-HVD， and expansion to 3 GW.
Method Based on meeting the various operation modes of flexible DC transmission， facilitating capacity increase， adapting to the level of equipment research and development， and making full use of existing equipment and buildings to reduce the difficulty and cost of transformation. Research compared different converter valve topologies and submodule topologies， studied the setting of the start-up circuit， the electrical wiring of the DC field， and the type of interface transformer.
Result Research and analysis show that the capacity-increasing transformation plan recommends the use of a 1.5 GW converter valve per pole， half bridge-full bridge submodule hybrid type， symmetrical bipolar wiring， start-up circuit set on the side of the valve， large transverse size connection transformer.
Conclusion This research provides the ideas and methods for the transformation of existing of the existing LCC-HVDC converter station retrofit for VSC-HVDC converter station.

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李辉

JIAN Xianghao,LU Yuxin,HAO Weihan,et al.Research on Design of Guangzhou LCC-HVDC Converter Station Retrofit for VSC-HVDC Converter Station[J].Southern Energy Construction,2020,07(04):54-60.

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Guanyan PENG

1.
China Energy Engineering Group Guangdong Electric Power Design Institute Co.， Ltd.， Guangzhou 510663， China

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Research on Design of Guangzhou LCC-HVDC Converter Station Retrofit for VSC-HVDC Converter Station

Abstract