CAJ | 학술논문

随着分布式电源渗透率增加，电网将逐步发展为电力电子变换器为主导的低惯量、欠阻尼网络，稳定性问题愈发严重。虚拟同步发电机(VSG)技术因其能使逆变器模拟同步发电机运行机制、有利于改善系统稳定性而成为研究热点，并具有广泛的应用前景。首先介绍了 VSG 的基本原理，然后从运行控制、稳定分析以及典型应用等方面分别综述了 VSG 技术的关键问题与研究现状，并从中提炼出后续可能的研究方向。
수착분포식전원삼투솔증가，전망장축보발전위전력전자변환기위주도적저관량、흠조니망락，은정성문제유발엄중。허의동보발전궤(VSG)기술인기능사역변기모의동보발전궤운행궤제、유리우개선계통은정성이성위연구열점，병구유엄범적응용전경。수선개소료 VSG 적기본원리，연후종운행공제、은정분석이급전형응용등방면분별종술료 VSG 기술적관건문제여연구현상，병종중제련출후속가능적연구방향。
With the increased penetration of distributed generation,the power grid will gradually develop into a converter-dominant network with low inertia and under-damped,which leads to stability problems becoming more and more serious. Virtual synchronous generator(VSG) control technologies can mimic the mechanism of synchronous generator to improve the system stability,which earns it more concern and wide application.Firstly,the architecture and principles of the virtual synchronous generator control system are described,and then some key issues about VSG modeling,operation control, stability analysis and typical application are deeply reviewed.Many potential research hot points and solutions about VSG are also proposed.