高电压技术2026，Vol.52Issue(9)：4081-4091,中插9-中插10,13.DOI:10.13336/j.1003-6520.hve.20260405
SVG控制模式对新能源场站宽频振荡作用机理分析及工程实践(一):阻抗建模与机理分析
Mechanism Analysis and Engineering Practice of SVG Control Modes on Broadband Oscilla-tions in Renewable Energy Plants(Part I):Impedance Modeling and Mechanism Analysis
摘要
Abstract
With the large-scale grid integration of renewable energy(RE)generation,frequent occurrences of broadband oscillations have been observed in RE plants.RE plants incorporate devices such as static var generators(SVG)besides wind turbines and photovoltaic(PV)generation units.Analytical models and mechanistic understanding remain deficient in characterizing the impact pathways and dominant contributing factors of SVG control modes on broadband oscillations in RE plants.This paper first constructs the small-signal transfer relations of SVG under different control modes(reactive power control mode and AC voltage control mode),establishes a three-port network model comprising RE generation,SVG,and the power grid.Subsequently,quantitative analysis is conducted to determine the causes of impedance charac-teristics discrepancies under different SVG control modes and their impacts on system impedance,and the influence patterns of SVG control modes on RE plant oscillations is revealed.Finally,simulation experiments on the impact of dif-ferent SVG control modes on broadband oscillations in RE stations were conducted based on the MATLAB/Simulink simulation platform,verifying the correctness of the analytical conclusions.关键词
SVG/控制模式/新能源场站/阻抗特性/宽频振荡Key words
SVG/control mode/renewable energy(RE)plant/impedance characteristics/broadband oscillation引用本文复制引用
贺萌,李光辉,王伟胜,郭梓暄,雷雨..SVG控制模式对新能源场站宽频振荡作用机理分析及工程实践(一):阻抗建模与机理分析[J].高电压技术,2026,52(9):4081-4091,中插9-中插10,13.基金项目
国家自然科学基金(52377126).Projected supported by National Natural Science Foundation of China(52377126). （52377126）
