A VSG-Based Coordinated DC Voltage Control for VSC-HVDC to Participate in Frequency Regulation
| Autor: | Yan Guo, Xinwei Sun, Wei Wei, Tianwen Zheng, Bo Zhou, Chen Laijun |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Technology
Control and Optimization Renewable Energy Sustainability and the Environment Computer science Control (management) Energy Engineering and Power Technology virtual synchronous generator Transmission system small-signal model analysis Grid DC voltage control VSC-HVDC Control theory Control system Frequency regulation frequency regulation Electrical and Electronic Engineering Engineering (miscellaneous) Short circuit Energy (miscellaneous) Power control Voltage |
| Zdroj: | Energies, Vol 14, Iss 2712, p 2712 (2021) Energies Volume 14 Issue 9 |
| ISSN: | 1996-1073 |
| Popis: | In this paper, a coordinated DC voltage control strategy is proposed based on the VSG (virtual synchronous generator) method for the VSC-HVDC transmission system to participate in the frequency regulation of the connected weak grid. The voltage and power control capability of the VSC-HVDC is explored to attenuate the rate of change of frequency and to diminish the deviation of frequency. This is realized by the coordinated control of DC voltages at both the sending and the receiving ends with the VSG method. A small-signal model is established to investigate the dynamics of the control system. A tuning method for the selection of control parameters is also discussed in detail. The validity and superiority of the proposed control strategy are tested in the scenarios of sudden load changes and short circuit faults. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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