现代电力2024，Vol.41Issue(5)：878-885,8.DOI:10.19725/j.cnki.1007-2322.2022.0352
基于虚拟同步机的风-光-储并网系统自适应功频控制策略
Adaptive Power Frequency Control Strategy for Wind-Photovoltaics-Storage Grid Connected System Based on Virtual Synchronizer Generator
摘要
Abstract
Operating condition changes can cause system power frequency fluctuations when the wind/photovoltaics/stor-age system using virtual synchronous generator control techno-logy is connected to the grid for operation.In allusion to this problem,an adaptive inertia-damping power frequency control strategy based on a virtual synchronous generator(VSG)was established.Firstly,the VSG mathematical model and Small signal model were established to analyze the impact of the model's virtual parameter changes on system stability.Secondly,a segmented-linear adjustment function was de-signed and parameter selection principles were given based on the principle of inertia damping dynamic characteristics ana-lyzed by the power angle characteristic curve when the system is disturbed.Finally,the simulation model was built on the Matlab/Simulink platform.The results show that the power and frequency response of wind-photovoltaics-storage grid-connec-ted system are improved by using VSG adaptive control strategy in the case of operating condition changes,and this control strategy has better transient performance compared to traditional VSG control technology.关键词
风-光-储/虚拟同步发电机/暂态性能/旋转惯量/阻尼系数/自适应控制/功频振荡Key words
wind-photovoltaics-storage/virtual synchron-ous generator/transient performance/rotational inertia/damping coefficient/adaptive control/power frequency os-cillation分类
信息技术与安全科学引用本文复制引用
程静,胡健雄,王维庆,程筱鹏..基于虚拟同步机的风-光-储并网系统自适应功频控制策略[J].现代电力,2024,41(5):878-885,8.基金项目
新疆维吾尔自治区重大科技专项(2022A1001-4). Major Science and Technology Projects in Xinjiang Uygur Autonomous Region(2022A1001-4). （2022A1001-4）
