Research on regional emergency DC power support strategy of VSC-MTDC transmission system

• Autorzy: Li Congshan , Sheng Tingyu , Fang Yan , Li Yikai

Identyfikatory

DOI

10.24425/aee.2021.136058

• Języki publikacji: EN

Abstrakty

EN

In the asynchronous interconnected power grid that is composed of the multiterminal voltage-source converter high voltage direct current (VSC-MTDC) system, the control methods of each converter station and the frequency of the connected AC systemare not the same. When a fault occurs in any place of the asynchronous interconnected system, it will cause the system to have power shortage or surplus, affecting the safe and stable operation of the interconnected power grid. In order to solve the problem of insufficient regional active power reserve, based on the VSC-MTDC asynchronous regional interconnection system and the principle of regional sharing, the dynamic power controller under disturbance conditions is established, and the controller parameters are set to achieve the accuracy of unbalanced power in the disturbance area measuring. Then, according to the degree of the disturbance power, considering the factors that affect the support effect of the converter station, an emergency DC power support (EDCPS) scheme under different power disturbances is formulated to achieve power compensation for the disturbance area. Basedon PSCAD/EMTDC software, the proposed control strategy is simulated. The result showst hat the converter station closer to the disturbance area has a better support effect, and the dynamic active power controller can timely and accurately deliver to the disturbance area when the active power reserve is insufficient.

Słowa kluczowe

EN

coordinated control; dynamic active power support; emergency DC power support; VSC-MTDC

PL

skoordynowana kontrola; wspomaganie mocy czynnej dynamiczne; awaryjne wsparcie zasilania prądem stałym; VSC-MTDC

• Wydawca: Polish Academy of Sciences, Committee on Electrical Engineering
• Czasopismo: Archives of Electrical Engineering
• Rocznik: 2021
• Tom: Vol. 70, nr 1
• Strony: 145--160
• Opis fizyczny: Bibliogr. 20 poz., rys., tab., wz., wykr.

Twórcy

autor

Li Congshan

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

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

autor

Sheng Tingyu

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

autor

Fang Yan

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

autor

Li Yikai

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

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).