中国电机工程学报2016，Vol.36Issue(21)：5724-5731,8.DOI:10.13334/j.0258-8013.pcsee.160458
基于参数自适应调节的虚拟同步发电机暂态响应优化控制
Optimal Control of Transient Response of Virtual Synchronous Generator Based on Adaptive Parameter Adjustment
摘要
Abstract
The virtual synchronous generator (VSG) has attracted wide attention in the field of new energy power generation since it can mimic the mechanism of synchronous generator. However, frequency and active power may fluctuate severely and even exceed their limitation if distributed energy varies seriously. To solve this problem, this paper first investigated the change of physical variables in transient process, and then established the optimal model by taking full advantage of the flexible adjustability of virtual inertia and damped coefficient of VSG. The model aims at minimizing transient response time, with limitation of frequency amplitude and change rate being constraint and system new equilibrium point being boundary condition. In addition, the adaptive adjustment strategy of virtual inertia and damped coefficient was proposed according to the solution of the model, and its stability was analyzed. The strategy can inhibit fluctuation of frequency and active power, and shorten the time of transient response efficiently. The simulation results verify the correctness and effectiveness of the proposed control strategy.关键词
分布式能源/虚拟同步发电机/虚拟惯量/阻尼系数/自适应调节Key words
distributed energy/virtual synchronous generator/virtual inertia/damped coefficient/adaptive adjustment分类
信息技术与安全科学引用本文复制引用
陈来军,王任,郑天文,郭永庆,梅生伟..基于参数自适应调节的虚拟同步发电机暂态响应优化控制[J].中国电机工程学报,2016,36(21):5724-5731,8.基金项目
国家自然科学基金创新研究群体项目(51321005)；清华大学自主科研计划(20151080416)；国家自然科学基金地区科学基金项目(51567021)。Foundation for Innovative Research Groups of the National Natural Science Foundation of China (51321005) （51321005）
Independent Research Program of Tsinghua University (20151080416) （20151080416）
Area Foundation of National Natural Science Foundation of China (51567021) （51567021）
