大容量电压源型逆变器在新型电力系统构建中的关键技术和创新展望

马为民; 李明; 薛英林; 王莹鑫; 吴方劼; 赵峥; 李探

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电力建设 ›› 2025

大容量电压源型逆变器在新型电力系统构建中的关键技术和创新展望

马为民, 李明, 薛英林, 王莹鑫, 吴方劼, 赵峥, 李探

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Key Technologies and Innovation Prospects of Large-Capacity Voltage Sourced Inverter in the Construction of New Power Systems

MA Weimin, LI Ming, XUE Yinglin, WANG Yingxin, WU Fangjie, ZHAO Zheng, LI Tan

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摘要

【目的】基于模块化多电平技术的大容量电压源型逆变器（static var generator,SVG）,可实现主动构网、无功补偿、谐波抑制、阻抗重塑等多种功能,是支撑新型电力系统构建的重要设备。【方法】对大容量电压源型逆变器在新型电力系统构建中的关键技术进行了论述。首先,回顾了SVG的发展历程和基本拓扑原理,梳理了SVG与MMC演化转换关系,分析了SVG支撑电网强度的量化评估公式,总结了SVG保障新型电力系统在高比例新能源、高比例电力电子设备接入下安全稳定运行的优势。然后,重点对基于SVG的多源换相换流器（multi source line commutation converter,SLCC）技术、有源滤波器、构网型SVG、储能型SVG等关键技术进行了分析。最后,对SVG在未来新型电力系统中可发挥的关键作用和后续重点研究方向进行了展望。【结果】在未来新型电力系统构建中,大容量SVG在大规模新能源孤岛送出、弱系统电压支撑、广域谐波抑制等方面应用前景广阔。【结论】孤岛新能源下SVG预充电和黑启动、多SVG间协调配合控制等方面有待开展进一步深入研究。

Abstract

[Objective] The large-capacity SVG based on modular multi-level technology can realize various functions such as active network construction, reactive power compensation, harmonic suppression, impedance remodeling, etc., and is an important equipment to support the construction of new power systems. [Methods] This paper discuss the key technologies and innovation prospects of large-capacity voltage sourced inverter in the construction of new power systems, reviews the development history and basic topological principles of SVG, sorts out the evolutionary conversion relationship between SVG and modular multilevel converter (MMC), analyzes the quantitative evaluation formula of AC grid strength supporting by SVG, and summarizes the advantages of SVG to ensure the safe and stable operation of the new power system with a high proportion of new energy and a high proportion of power electronic equipment. Then, the key technologies such as SVG-based multi-source commutation converter technology (SLCC), active filter, grid-forming SVG, and energy storage type SVG were analyzed. Finally, the key role that SVG play in constructing new power system and the key research directions in the future are prospected. [Results] In the construction of future new power systems, large-capacity SVG holds broad application prospects in areas such as large-scale new energy island export, weak system voltage support, and wide-area harmonic suppression. [Conclusions] Further in-depth research is needed on SVG pre-charging and black start, as well as coordinated control among multiple SVGs in isolated new energy systems.

导出引用

马为民, 李明, 薛英林, 王莹鑫, 吴方劼, 赵峥, 李探. 大容量电压源型逆变器在新型电力系统构建中的关键技术和创新展望[J]. 电力建设. 2025

MA Weimin, LI Ming, XUE Yinglin, WANG Yingxin, WU Fangjie, ZHAO Zheng, LI Tan. Key Technologies and Innovation Prospects of Large-Capacity Voltage Sourced Inverter in the Construction of New Power Systems[J]. Electric Power Construction. 2025

中图分类号： TM46

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