Characteristics and Commissioning of the Collaboration Between the Min-Yue Back-to-Back HVDC Transmission System and SVG/HAPF

doi:10.11930/j.issn.1004-9649.202306033

Abstract

Abstract:

HAPF (high voltage active power filter) and SVG (static var generator), which are specially used for filtering in large-capacity HVDC projects, are configured in the Min-Yue back-to-back HVDC transmission project to meet the filtering requirements and reactive power support on both sides of the converter station respectively. In this paper, according to the characteristics of the Min-Yue project, a complete live commissioning scheme of the HVDC system and a collaborative operation test scheme of HAPF, SVG and HVDC are proposed, which have verified the availability of the equipment and its compatibility with the HVDC system. In view of the SVG fault events in actual operation, the complex problems caused by multiple factors in the process of high voltage transient response of SVG are analyzed in depth, and according to the targeted optimization control strategy, a high voltage/low voltage/three-phase unbalanced transient control test scheme of single SVG equipment is proposed. And a system test scheme is also proposed to verify the overall control strategy of the whole process of SVG and HVDC system under SVG fault. The correctness and effectiveness of the optimization strategy are verified through field implementation.

Key words: HVDC, HAPF, SVG, back-to-back DC system, DC control and protection system

Xiao LEI, Ruiwen XU, Ningmin ZHENG, Decai LI, Shicheng LIU. Characteristics and Commissioning of the Collaboration Between the Min-Yue Back-to-Back HVDC Transmission System and SVG/HAPF[J]. Electric Power, 2024, 57(4): 130-138.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.202306033

https://www.electricpower.com.cn/EN/Y2024/V57/I4/130

Figures/Tables 8

Fig.1 Schematic diagram of Min-Yue HVDC main circuit

Fig.2 Reactive power flow of Guangdong side

Fig.3 Active and reactive power curves for HVDC and SVG coordinated operation

Fig.4 Fault recording during HVDC deblock process before optimization

Fig.5 Fault recording of step-down transformer current

Fig.6 High voltage transient test recording

Fig.7 Recording of high voltage transient imbalance test

Fig.8 Fault recording during HVDC deblock process after optimization

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