电力系统自动化2017,Vol.41Issue(3):96-102,7.DOI:10.7500/AEPS20160420001
基于微分补偿环节虚拟惯性的虚拟同步发电机控制策略
Control Strategy of Virtual Synchronous Generator Based on Differential Compensation Virtual Inertia
摘要
Abstract
Aiming at the regulation contradictions between output active power steady state and dynamic characteristics when the conventional virtual synchronous generator (VSG) based on first-order link virtual inertia is connected to the utility grid,a VSG control strategy based on differential compensation virtual inertia is proposed.Through the incorporation of a differential link in the forward channel of conventional VSG control structure,the control strategy accelerates the power response speed,increases the damping of the system,and reduces the power impact on the energy storage unit of VSG during the dynamic process,while ensuring the maintenance of the output active power steady-state control precision.Simulation and experiments have validated the effectiveness of the proposed strategy.关键词
虚拟同步发电机/虚拟惯性/微网(微电网)/微分补偿Key words
virtual synchronous generator (VSG)/virtual inertia/microgrid/differential compensation引用本文复制引用
徐海珍,张兴,刘芳,石荣亮,胡超,倪华..基于微分补偿环节虚拟惯性的虚拟同步发电机控制策略[J].电力系统自动化,2017,41(3):96-102,7.基金项目
国家高技术研究发展计划(863计划)资助项目(2015AA050607).This work is supported by National High Technology Research and Development Program of China (863 Program)(No.2015AA050607). (863计划)