现代电力2024，Vol.41Issue(4)：786-792,7.DOI:10.19725/j.cnki.1007-2322.2022.0285
基于同步虚拟阻尼的多虚拟同步发电机功率振荡抑制策略
Power Oscillation Suppression Strategy for Multi-VSGs Based on Synchronous Virtual Damping
黄敏灵 1程静 2王维庆2
作者信息
- 1. 新疆大学电气工程学院,新疆维吾尔自治区乌鲁木齐市 830047
- 2. 新疆大学电气工程学院,新疆维吾尔自治区乌鲁木齐市 830047||可再生能源发电与并网控制教育部工程研究中心,新疆维吾尔自治区乌鲁木齐市 830047
- 折叠
摘要
Abstract
In the event of external disturbance to a power grid consisting of multiple virtual synchronous generators(VSGs),power oscillations may arise among the VSGs,potentially af-fecting system stability.Aiming at this problem,a multi-VSG power oscillation suppression strategy based on synchronous virtual damping was proposed.A transfer function model of the multi-VSG system was established to analyze the primary causes behind power oscillation.According to the proportional-differential characteristics of the power droop,the synchronous virtual damping was deduced.The mathematical model was ap-plied in the synchronous VSG control loop,increasing the equi-valent damping of the system under transient conditions and thereby suppressing the power oscillation of the system.In ad-dition,the stability of the improved system was proved through the construction of the energy function.Finally,the effective-ness of the control strategy in suppressing system power oscil-lations was confirmed by simulation.关键词
虚拟同步机/功率振荡/虚拟阻尼/微电网/分布式发电Key words
virtual synchronizer/power oscillation/virtual damping/microgrid/distributed generation分类
信息技术与安全科学引用本文复制引用
黄敏灵,程静,王维庆..基于同步虚拟阻尼的多虚拟同步发电机功率振荡抑制策略[J].现代电力,2024,41(4):786-792,7.
