Research on influencing factors of emergency power support for voltage source converter-based multi-terminal high-voltage direct current transmission system

• Autorzy: Li Congshan , Zhen Zikai , Sheng Tingyu , Liu Yan , Zhong Pu , Zhang Xiaowei

Identyfikatory

DOI

10.24425/aee.2022.142114

• Języki publikacji: EN

Abstrakty

EN

Voltage source converter-based multi-terminal high-voltage direct current (VSCMTDC) transmission system can realize a multi-point power supply, multi-drop power receiving, and mutual coordination between the converter stations to ensure the reliability of the transmission. Based on the PSCAD/EMTDC platform, a five-terminal DC transmission system model is established. According to the fast power regulation capability and overload capacity of theVSC-MTDC power transmission system, an analysis of additional emergency power support for a transmission system under large disturbance conditions was carried out. A new control strategy for emergency power support that introduces its basic principle is proposed in this paper. It uses the short-term overload capability of the DC system. By changing the power reserve of the converter station and the electrical distance between the converter stations, the influence of the power reserve and the electrical distance on the emergency power supply guarantee is analyzed the stability of the system is improved, thereby improving the sudden change of power caused by voltage fluctuations, and the feasibility of the control module is verified by PSCAD simulation. The simulation results show that when the system power supply suddenly changes, the converter stations at a short distance and large power reserve has a better effect on emergency power supply protection. A comparative study of the active power support of a single converter station and multiple converter stations is carried out. The research results show that the use of emergency power support in the DC transmission system has a good effect on maintaining the stability of the inter-connection system and the reliability of the power supply.

Słowa kluczowe

EN

coordinated control; emergency DC power support; influencing factors; VSC- MTDC transmission

• Wydawca: Polish Academy of Sciences, Committee on Electrical Engineering
• Czasopismo: Archives of Electrical Engineering
• Rocznik: 2022
• Tom: Vol. 71, nr 4
• Strony: 881--894
• Opis fizyczny: Bibliogr. 19 poz., rys., tab., wz.

Twórcy

autor

Li Congshan

• Zhengzhou University of Light Industry, College of Electrical and Information Engineering China

• https://orcid.org/0000-0003-1321-7519

autor

Zhen Zikai

• Zhengzhou University of Light Industry, College of Electrical and Information Engineering China

• https://orcid.org/0000-0003-0172-3246

autor

Sheng Tingyu

• Maintenance Company of State Grid Henan Electric Power Company China

autor

Liu Yan

• Zhengzhou University of Light Industry, College of Electrical and Information Engineering China

• https://orcid.org/0000-0001-7643-1323

autor

Zhong Pu

• Zhengzhou University of Light Industry, College of Electrical and Information Engineering China

• https://orcid.org/0000-0001-7830-9313

autor

Zhang Xiaowei

• Zhengzhou University of Light Industry, College of Electrical and Information Engineering China

• https://orcid.org/0000-0003-2118-5107

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).