抑制电力系统低频振荡的磁控变压器附加控制  

Additional Control of Magnetic Controlled Transformer for Suppressing Low Frequency Oscillation in Power Systems

作　　者：赵国生[1] 王洪光 李辉[1] ZHAO Guosheng;WANG Hongguang;LI Hui(School of Electrical and Information Engineering,Zhengzhou University,Zhengzhou 450001,China)

机构地区：[1]郑州大学电气与信息工程学院,郑州450001

出　　处：《南方电网技术》2025年第2期28-35,共8页Southern Power System Technology

基　　金：国家自然科学基金资助项目(52107170)。

摘　　要：随着互联电力系统的发展,低频振荡现象越来越频繁,研究低频振荡的抑制措施以提高电力系统的稳定性和供电可靠性成为亟须解决的问题。因此提出了一种利用磁控变压器附加阻尼控制来抑制电力系统低频振荡的方法。首先,介绍了磁控变压器的工作原理,并推导了其数学模型。其次,建立了含磁控变压器的单机无穷大系统的线性化模型,分析了磁控变压器的阻尼特性,说明了磁控变压器附加控制为电力系统提供阻尼的机理。然后,重点研究了基于频域法的附加阻尼控制器参数设计的方法,并给出了具体的单机无穷大系统算例。最后,通过Simulink时域仿真验证了磁控变压器附加阻尼控制器的有效性和可行性。With the development of interconnected power systems,low-frequency oscillations are becoming increasingly frequent.Researching measures to suppress these oscillations in order to enhance the stability and reliability of power systems has become an urgent issue.A method to suppress low-frequency oscillations in power systems is proposed by utilizing magnetic controlled transformers with additional damping control.Firstly,the working principle of the magnetic controlled transformer is introduced and its mathematical model is derived.Secondly,a linearized model of a single machine infinite bus system incorporating magnetic control transformers is established.The damping characteristics of magnetic control transformers are analyzed,and the principle that the magnetic control transformer provides damping for the power system is explained.Then the method of designing additional damp-ing controller parameters is studied primarily based on the frequency domain method,and calculation examples of single machine infinite bus systems are provided.Finally,the effectiveness and feasibility of the additional damping controller for the magnetic controlled transformer are verified by Simulink time-domain simulation.

关 键 词：电力系统稳定性 低频振荡 磁控变压器 附加阻尼控制器 单机系统 

分 类 号：TM712[电气工程—电力系统及自动化]