具有调速器死区的LFC系统的广义自抗扰控制

doi:10.16182/j.issn1004731x.joss.201704015

系统仿真学报 ›› 2017, Vol. 29 ›› Issue (4): 818-825.doi: 10.16182/j.issn1004731x.joss.201704015

具有调速器死区的LFC系统的广义自抗扰控制

常帅兵, 谭文, 曾智勇

华北电力大学控制与计算机工程学院,北京 102206

收稿日期:2016-07-26 修回日期:2016-09-06 出版日期:2017-04-08 发布日期:2020-06-03
作者简介:常帅兵(1987-),男,河南许昌,博士生,研究方向为自抗扰控制。
基金资助:
国家自然科学基金(61573138),中央高校科研业务费专项资金(2015XS61)

Analysis and Design of LFC System with Governor Dead-band via Generalized Active Disturbance Rejection Control

Chang Shuaibing, Tan Wen, Zeng Zhiyong

School of Control & Computer Engineering, North China Electric Power University, Beijing 102206, China

Received:2016-07-26 Revised:2016-09-06 Online:2017-04-08 Published:2020-06-03

摘要/Abstract

摘要： 为了消除调速器死区非线性对系统的影响和保证系统稳定,针对存在调速器死区的负荷频率控制(load frequency control,LFC)系统,采用了自抗扰控制(active disturbance rejection control,ADRC)方法,并通过描述函数法验证控制方法的有效性。提出死区线性化方法,并采用了广义自抗扰控制(generalized active disturbance rejection control,GADRC)方法。为能有效地消除死区非线性,提出了一种误差补偿策略。仿真结果显示,提出的误差补偿策略能有效地消除死区非线性,保证了系统的控制性能。提出通过描述函数法获得补偿系数的取值范围也是可行。

关键词: 调速器死区非线性, 负荷频率控制, 描述函数法, 广义自抗扰控制, 误差补偿策略

Abstract: To eliminate the effect of the governor dead-band nonlinearities and guarantee the system stability, for load frequency control (LFC) of power systems with governor dead-band nonlinearity, the active disturbance rejection control (ADRC) was adopted, and the effectiveness of the control method was verified through the describing function method. A linearized method of dead-band was proposed, and the generalized active disturbance rejection control (GADRC) was adopted. Further, an error compensation scheme was proposed to eliminate the dead-band nonlinearities effectively. Simulation results show that the proposed error compensation scheme can eliminate the dead-band nonlinearity effectively and guarantee the control performance of the system. The describing function method can be proposed to obtain the range of the compensation coefficient.

Key words: governor dead-band nonlinearity, load frequency control, describing function method, generalized active disturbance rejection control, error compensation scheme

中图分类号:

TP273

常帅兵, 谭文, 曾智勇. 具有调速器死区的LFC系统的广义自抗扰控制[J]. 系统仿真学报, 2017, 29(4): 818-825.

Chang Shuaibing, Tan Wen, Zeng Zhiyong. Analysis and Design of LFC System with Governor Dead-band via Generalized Active Disturbance Rejection Control[J]. Journal of System Simulation, 2017, 29(4): 818-825.

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具有调速器死区的LFC系统的广义自抗扰控制

Analysis and Design of LFC System with Governor Dead-band via Generalized Active Disturbance Rejection Control

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