电气传动2025，Vol.55Issue(5)：34-40,7.DOI:10.19457/j.1001-2095.dqcd25380
基于减载运行的光伏虚拟同步控制策略
Virtual Synchronous Control Strategy for Photovoltaics Based on Load Shedding Operation
摘要
Abstract
With the increasing penetration of new energy equipment,while alleviating the environmental problems caused by fossil energy,it also increases the frequency instability of the system.Photovoltaic(PV)and other new energy equipment to participate in the grid frequency regulation is an effective way to improve the frequency stability of the power system.First,the basic principle of frequency response of synchronous machine was analyzed,the correspondence was determined which is between active output of PV power generation and primary frequency regulation and inertia response,and the virtual synchronous control strategy of PV power generation was formed.Then,based on the power-frequency correspondence relationship of primary frequency regulation,it gave the parameter adjustment method that directly corresponds to the frequency and the load shedding rate,and realized the function of primary frequency regulation.Once again,based on the inertia response minus the frequency-power correspondence relationship,it gave the inertia response minus the frequency-power correspondence relationship,which is the most effective way to improve frequency stability of power system.Once again,based on the correspondence between inertia response frequency reduction and power,the parameter setting method of inertia response load shedding rate was given,and the negative influence of inertia in the process of frequency restoration was avoided through the determination of application conditions of inertia response.Finally,the PV grid-connected model was constructed,which verified that the PV load shedding operation has the ability to participate in the frequency regulation of the power grid.关键词
光伏发电/减载控制/一次调频/惯量响应Key words
photovoltaic(PV)power generation/load shedding control/primary frequency regulation/inertia response分类
动力与电气工程引用本文复制引用
刘延龙,韩平平,陈晓光,郭佳林..基于减载运行的光伏虚拟同步控制策略[J].电气传动,2025,55(5):34-40,7.基金项目
国网黑龙江省电力有限公司科技项目(52243722000N) （52243722000N）
