基于自适应非奇异终端滑模控制的电力系统混沌抑制

王家斌<sup>1</sup>; 于永进<sup>1</sup>; 阎振坤<sup>2</sup>; 王云飞<sup>3</sup>

引用本文:	王家斌,于永进,阎振坤,等.基于自适应非奇异终端滑模控制的电力系统混沌抑制[J].电力系统保护与控制,2021,49(7):120-126.
	WANG Jiabin,YU Yongjin,YAN Zhenkun,et al.Chaotic suppression of a power system based on adaptive non-singular terminal sliding mode control[J].Power System Protection and Control,2021,49(7):120-126

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基于自适应非奇异终端滑模控制的电力系统混沌抑制
王家斌，于永进，阎振坤，王云飞
(1.山东科技大学电气与自动化工程学院, 山东青岛 266590；2.国网山东省电力公司青岛供电公司，山东青岛 266590；3.国网技术学院，山东济南 250002)

摘要:

在一定条件下，电力系统会产生混沌振荡现象，影响电网的安全稳定运行。对电力系统四阶模型进行混沌振荡的动力学行为分析，并且设计了一种基于自适应非奇异终端滑模控制的控制器。在保证系统实现有限时间内收敛以及不产生奇异性问题的基础上，快速消除了四阶电力系统中的混沌振荡现象。针对四阶电力系统模型中阻尼系数和机械功率通常具有不确定性这一问题，采用自适应控制对其估计，增强了控制器的实用性。仿真结果证明了控制器的有效性。

关键词: 电力系统混沌振荡非奇异终端滑模

DOI：DOI: 10.19783/j.cnki.pspc.200725

分类号:

基金项目:国家自然科学基金项目资助(61803233)

Chaotic suppression of a power system based on adaptive non-singular terminal sliding mode control

WANG Jiabin, YU Yongjin, YAN Zhenkun, WANG Yunfei

(1. College of Electrical Engineering and Automation, Shandong University of Science and Technology, Qingdao 266590, China; 2. Qingdao Power Supply Company, State Grid Shandong Electric Power Company, Qingdao 266590, China; 3. State Grid Technical College, Jinan 250002, China)

Abstract:

Under certain conditions, chaotic oscillations will appear in a power system, affecting the safe and stable operation of the power grid. The dynamic behavior of chaotic oscillation in the fourth-order model of power system is analyzed and a controller based on adaptive non-singular terminal sliding mode control is designed. To ensure that the system converges within a limited time and does not produce singularity problems, the chaotic oscillation phenomenon in the fourth-order power system is quickly eliminated. To solve the problem that the damping coefficient and mechanical power usually have uncertainty in the fourth-order power system model, adaptive control is used to estimate it. This enhances the practicability of the controller. Simulation results demonstrate the effectiveness of the controller. This work is supported by the National Natural Science Foundation of China (No. 61803233).

Key words: power system chaotic oscillation non-singular terminal sliding mode

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