基于虚拟同步发电机的惯量阻尼自适应控制策略  

Adaptive control strategy of inertia damping based on virtual synchronous generator

作　　者：骆颖杰 Luo Yingjie(College of Electrical and Information Engineering,Hunan University of Technology,Zhuzhou 412007,Hunan,China)

机构地区：[1]湖南工业大学电气与信息工程学院,湖南株洲412007

出　　处：《船电技术》2025年第1期56-61,共6页Marine Electric & Electronic Engineering

摘　　要：近些年来,虚拟同步发电机(virtual synchronous generator,VSG)技术由于其能够模拟同步发电机的外特性从而得到更广泛的应用。而当电网系统受到扰动时,系统输出的有功功率和频率会出现超调现象以及调节时间变长。针对这类问题,本文搭建VSG数学模型,经过研究转动惯量和阻尼系数对系统有功功率和角频率的影响。通过研究受扰动时VSG的功角变化曲线和角频率变化曲线,并对常规VSG控制技术进行改善,提出了一种改进型的惯量阻尼自适应控制策略。最后在并网模式下通过Matlab/Simulink仿真软件对其可行性和优越性进行了验证。In recent years,virtual synchronous generator(VSG)technology has been more widely used because of its ability to simulate the external characteristics of synchronous generators.When the power system is disturbed,the output active power and frequency of the system will overshoot and the adjustment time will become longer.To solve these problems,VSG mathematical model is built in this paper,and the effects of rotational inertia and damping coefficient on the active power and angular frequency of the system are studied.By studying the power angle change curve and angular frequency variation curve of VSG under disturbance,and improving the conventional VSG control technology,an improved inertia damping adaptive control strategy is proposed.Finally,the feasibility and superiority of the system are verified by MATLAB/SIMULINK simulation software in grid-connected mode.

关 键 词：虚拟同步发电机 转动惯量 阻尼系数 并网逆变器 自适应控制策略 

分 类 号：TM464[电气工程—电器]