电测与仪表2024，Vol.61Issue(1)：189-194,6.DOI:10.19753/j.issn1001-1390.2024.01.029
惯量阻尼自适应虚拟直流发电机控制策略
Control strategy of inertia damping adaptive virtual DC generator
摘要
Abstract
DC micro-grid gets rid of considering factors such as frequency and phase,and the topology is simple and easy to control.But based on a large number of power electronic converter interfaces,the inertia of the DC microgrid is low,which will affect the safe and stable operation of the micro-grid in severe cases.In response to this problem,this paper proposes an adaptive control strategy of inertia damping with additional dynamic adjustment coefficient by analyzing the in-ertia requirements of the system at various stages of voltage fluctuations and the influence of inertia damping parameters on the system inertia,which can adjust the system inertia flexibly according to the voltage change rate and voltage deviation to reduce the influence of power fluctuations on the bus voltage.The small-signal model of the system is established,and the small signal stability of inertia damping parameters is analyzed by the impedance ratio criterion.Finally,the PSCAD/EMTDC simulation software is used to establish a DC micro-grid simulation model for analysis and verify the effectiveness of the proposed control strategy.关键词
直流微网/虚拟直流发电机/阻抗比/自适应控制策略/惯量阻尼Key words
DC microgrid/virtual DC generator/impedance ratio/adaptive control strategy/inertia damping分类
信息技术与安全科学引用本文复制引用
王正男,张新慧,彭克,高震,程梦竹..惯量阻尼自适应虚拟直流发电机控制策略[J].电测与仪表,2024,61(1):189-194,6.基金项目
国家重点研发计划项目(2016YFB0900600) （2016YFB0900600）
国家自然科学基金资助项目(51807112) （51807112）
