振荡(细胞信号)
电抗
控制理论(社会学)
功率(物理)
电力系统
低频振荡
激发
惯性
交流电源
物理
计算机科学
工程类
控制(管理)
电气工程
电压
经典力学
生物
人工智能
量子力学
遗传学
作者
Zhikang Shuai,Wen Huang,Z. John Shen,An Luo,Zhen Tian
出处
期刊:IEEE Transactions on Power Electronics
[Institute of Electrical and Electronics Engineers]
日期:2020-04-01
卷期号:35 (4): 4127-4142
被引量:74
标识
DOI:10.1109/tpel.2019.2933628
摘要
Active power oscillation is observed when two or more parallel synchronverters undergo load fluctuations, potentially impacting the safe operation of the synchronverters. This article provides a fundamental analysis for the power oscillation mechanisms and proposes a new control strategy for suppressing power oscillation especially the oscillation excitation is proposed. It is found that power oscillation is inherently caused by weak damping and large inertia of the synchronverters under the condition of undesirable instantaneous active power sharing. Then, the condition for reducing the oscillation excitation of synchronverters, which is caused by undesirable instantaneous active power sharing, is deduced. The new control strategy effectively suppresses the power oscillation by adding a virtual damping element for enhancing the system damping and a virtual reactance for reducing the oscillation excitation to the conventional control scheme without changing the basic dynamic and steady characteristics of the synchronverters. The theoretical analysis and the proposed oscillation suppression control techniques are validated with an extensive hardware-in-loop simulation study.
科研通智能强力驱动
Strongly Powered by AbleSci AI