Small-Signal Terminal-Characteristics Modeling of Three-Phase Droop-Controlled Inverters

被引：0
|
作者：
Liu, Zeng [1 ,2 ]
Liu, Jinjun [1 ]
Borovevich, Dushan [2 ]
Burgos, Rolando [2 ]
Liu, Teng [1 ]
机构：
[1] Xi An Jiao Tong Univ, State Key Lab Elect Insulat & Power Equipment, Xian, Shaanxi, Peoples R China
[2] Virginia Polytech Inst & State Univ, Ctr Power Elect Syst, Blacksburg, VA 24061 USA
来源：
2016 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE) | 2016年
基金：
中国国家自然科学基金;
关键词：
modeling; terminal-characteristics; stability; droop-controlled inverters; DISTRIBUTED POWER-SYSTEMS; VOLTAGE-SOURCE CONVERTERS; INPUT-ADMITTANCE;
D O I：
暂无
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Droop-controlled inverters are widely employed as power sources in three-phase AC power electronics system, such as distributed generation, while the interaction between the source and the load may lead overall system to be unstable. Terminal-characteristics based stability criteria are very attractive for analyzing the stability of three-phase AC power electronics system. However, the systems, composed by droop-controlled inverters, exhibit the dynamical variation of fundamental angular frequency, and existing stability analysis approaches are just suitable for systems with constant fundamental angular frequency. To overcome this problem, this paper proposes small-signal terminal-characteristics model of the three-phase droop-controlled inverter covering the dynamic of fundamental angular frequency, and both current mode operation and voltage mode operation are taken into account. Finally, the proposed model is verified in frequency domain.
引用
收藏
页数：7
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