内蒙古电力技术2025，Vol.43Issue(6)：22-29,8.DOI:10.19929/j.cnki.nmgdljs.2025.0072
基于RT-LAB数模混合仿真的光伏电站无功置换策略优化及实证研究
Optimization and Empirical Research of Reactive Power Replacement Strategy for Photovoltaic Power Stations Based on RT-LAB Digital-Analog Hybrid Simulation
摘要
Abstract
In response to the issue of poor economic performance of dynamic reactive power resources provided by static var generators(SVG)during the steady-state operation of the power grid,the dynamic reactive power regulation characteristics of SVG and photovoltaic(PV)inverters are analyzed based on on-site PV power plants.A reactive power replacement strategy is proposed based on voltage-reactive power sensitivity.A hybrid simulation platform combining the automatic voltage control(AVC)system of PV power plants and a topological digital model is developed using RT-LAB.The proposed strategy is validated and evaluated through hybrid simulations and field measurements in actual PV power plants.The results demonstrate that the AVC system of the photovoltaic power plant can perform reactive power replacement at the grid connection point according to the predefined reactive power compensation strategy,maintaining constant voltage control throughout the process,which verifies the effectiveness and reliability of the optimization strategy.关键词
新型电力系统/光伏电站/数模混合仿真/无功置换/电压支撑Key words
new power system/photovoltaic power plant/digital-analog hybrid simulation/reactive power replacement/voltage support分类
信息技术与安全科学引用本文复制引用
CONG Yu,LIU Hongqing,YUAN Shuai,WANG Rongze,ZHANG Xiuqi..基于RT-LAB数模混合仿真的光伏电站无功置换策略优化及实证研究[J].内蒙古电力技术,2025,43(6):22-29,8.基金项目
国家重点研发计划项目"大规模可再生能源基地特高压多端直流输电外送关键技术"(2023YFB2405900) （2023YFB2405900）
内蒙古电力(集团)有限责任公司科技项目"基于数模混合仿真的新能源频率电压支撑电网技术研究"(2022-17) （集团）
