闽粤联网直流工程与SVG/HAPF协同运行特性及现场试验

doi:10.11930/j.issn.1004-9649.202306033

摘要/Abstract

摘要：

闽粤联网背靠背直流输电工程配置了专用于大容量高压直流工程滤波的高压直流工程滤波的高压有源滤波器（high voltage active power filter，HAPF）和静止无功发生器（static var generator，SVG），以分别满足换流站两侧的滤波需求和无功功率支撑。根据闽粤工程的特点，提出了完整的直流系统带电试验方案和HAPF、SVG与直流协同运行试验方案，验证了设备的可用性及与直流系统的适配性。针对实际运行中SVG故障退出事件，深入分析了SVG的高压暂态响应过程中多因素引起的连锁反应过程，并根据针对性的优化控制策略，提出了SVG单体设备高压/低压/三相不平衡暂态控制带电试验方案，以及验证SVG故障下SVG与直流系统全过程整体控制策略的系统试验方案，通过现场实施，验证了优化策略的正确性和有效性。

关键词: 高压直流输电, 高压有源滤波器, 静止无功发生器, 背靠背直流系统, 直流控制保护系统

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

雷霄, 许锐文, 郑宁敏, 李德才, 刘世成. 闽粤联网直流工程与SVG/HAPF协同运行特性及现场试验[J]. 中国电力, 2024, 57(4): 130-138.

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.

导出引用管理器 EndNote|Ris|BibTeX

链接本文: https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202306033

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

图/表 8

图 1 闽粤工程直流主回路示意

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

图 2 粤侧无功功率潮流

Fig.2 Reactive power flow of Guangdong side

图 3 直流与SVG协同运行的有功与无功曲线

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

图 4 优化前直流解锁过程中两组SVG故障录波

Fig.4 Fault recording during HVDC deblock process before optimization

图 5 降压变电流的故障录波

Fig.5 Fault recording of step-down transformer current

图 6 高压暂态测试录波

Fig.6 High voltage transient test recording

图 7 高压暂态三相不平衡测试录波

Fig.7 Recording of high voltage transient imbalance test

图 8 优化后直流解锁过程中两组SVG故障录波

Fig.8 Fault recording during HVDC deblock process after optimization

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