控制理论(社会学)
电阻抗
谐波
振荡(细胞信号)
非线性系统
计算机科学
工程类
物理
声学
电气工程
控制(管理)
量子力学
人工智能
生物
遗传学
作者
Xin Jiang,Yi Hao,Fang Zhuo,Yuguo Li
出处
期刊:IEEE Transactions on Industrial Electronics
[Institute of Electrical and Electronics Engineers]
日期:2023-01-01
卷期号:: 1-11
被引量:1
标识
DOI:10.1109/tie.2023.3327550
摘要
A shunt active power filter (SAPF) can interact with the nonlinear load and grid impedance, which may lead to unexpected harmonic oscillation. To describe the interaction, this article builds the interaction model including the source-current-detected SAPF, nonlinear load, and grid impedance. The interaction model reveals that the harmonic oscillation is prone to occur when the passive resonant frequency from grid impedance and nonlinear loads gets close to the harmonic frequency compensated by SAPF. This kind of harmonic oscillation is normally unpredictable because grid impedance and state of the nonlinear load continuously change. To cope with it, this article proposes a harmonic oscillation observation and adaptive stabilization strategy, which is implemented by monitoring and controlling the phase trajectory of the grid harmonic current through adjusting the phase and emergency damping factor of the harmonic resonant controllers in SAPF. This strategy has low requirement on real-time calculation and does not affect the dynamic response of the SAPF. In the end, the effectiveness of the stabilization strategy is verified by experiment results.
科研通智能强力驱动
Strongly Powered by AbleSci AI