摘要
下垂控制使电力电子接口具有同步发电机的一些外特性,如实现下垂曲线等,却不能为电网提供阻尼和惯性。为了模拟同步发电机的阻尼和惯性环节,本文通过分析如何从下垂控制演化为虚拟同步机控制,建立包括阻尼和惯性环节的类似同步发电机机械方程的模型,让电力电子变换器具有同步发电机的阻尼和惯性特性。仿真和实验验证了方法的可行性和正确性。
Droop control makes power electronic interface have some external characteristics of synchronous generator,such as realizing droop curve,but still cannot provide damping and inertia for power grid. In order to simulate the synchronous generator damping and inertia,this paper explains how from the evolution of droop control virtual synchronous machine control,through the establishment of similar mechanical equations of synchronous generator model,characteristic of the power electronic converter with synchronous generator damping and inertia. Simulation and experimental results verify the feasibility and correctness of the proposed method.
作者
张宸宇
杨赟
袁晓冬
郑建勇
ZHANG Chenyu;YANG Yun;YUAN Xiaodong;ZHENG Jianyong(State Grid Offshore Wind Power Grid Joint Laboratory-（State Grid Jiangsu Electric Power Co.,Ltd.Research Institute）,Nanjing 211103,China;School of Electrical Engineering,Southeast University,Nanjing 210096,China)
出处
《电力工程技术》
2018年第5期45-49,共5页
Electric Power Engineering Technology
基金
国家重点研发计划资助项目(2017YFB0903300)
关键词
下垂控制
阻尼
惯性
虚拟同步机
droop control
damping
inertia
virtual synchronizer generator（VSG）
