HVDC auxiliary emergency power control strategy for power disturbance in two different positions of AC/DC interconnection system

• Autorzy: Li Congshan , He Ping , Wang Youyi , Ji Yuyi , Yang Cunxiang

Identyfikatory

DOI

10.24425/aee.2019.128266

• Języki publikacji: EN

Abstrakty

EN

High voltage direct current (HVDC) emergency control can significantly improve the transient stability of an AC/DC interconnected power grid, and is an important measure to reduce the amount of generator and load shedding when the system fails. For the AC/DC interconnected power grid, according to the location of failure, disturbances can be classified into two categories: 1) interconnected system tie-line faults, which will cause the power unbalance at both ends of the AC system, as a result of the generator rotor acceleration at the sending-end grid and the generator rotor deceleration at the receiving-end grid; 2) AC system internal faults, due to the isolation effect of the DC system, only the rotor of the generator in the disturbed area changes, which has little impact on the other end of the grid. In view of the above two different locations of disturbance, auxiliary power and frequency combination control as well as a switch strategy, are proposed in this paper. A four-machine two-area transmission system and a multi-machine AC/DC parallel transmission system were built on the PSCAD platform. The simulation results verify the effectiveness of the proposed control strategy.

Słowa kluczowe

EN

unbalanced power; emergency control; power angle stability; frequency stability; control logic

• Wydawca: Polish Academy of Sciences, Committee on Electrical Engineering
• Czasopismo: Archives of Electrical Engineering
• Rocznik: 2019
• Tom: Vol. 68, nr 2
• Strony: 245--263
• Opis fizyczny: Bibliogr. 20 poz., rys., tab., wz.

Twórcy

autor

Li Congshan

• Zhengzhou University of Light Industry, China

autor

He Ping

• Zhengzhou University of Light Industry, China

autor

Wang Youyi

• Nanyang Technological University, Singapore

autor

Ji Yuyi

• Zhengzhou University of Light Industry, China

autor

Yang Cunxiang

• Zhengzhou University of Light Industry, China

Bibliografia

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).