智能电网低频振荡均匀阻尼控制研究  

Research on Uniform Damping Control of Low Frequency Oscillation in Smart Grid

作　　者：李晶 赵宏伟 叶萌 陈志聪 李政华 LI Jing;ZHAO Hong-wei;YE Meng;CHEN Zhi-cong;LI Zheng-hua(Guangzhou Power Supply Bureau Co.,Ltd.,Guangzhou 510620 China;Dongfang Electronics,Yantai 264000 China)

机构地区：[1]广东电网有限责任公司广州供电局电力调度控制中心,广东广州510620 [2]东方电子有限公司,山东烟台264000

出　　处：《自动化技术与应用》2024年第1期9-13,共5页Techniques of Automation and Applications

基　　金：广州供电局(080016GS62200008)。

摘　　要：低频振荡会破坏电气设备,严重的会导致智能电网的崩溃,传统控制方法在参数调节方面存在不足。为此提出智能电网低频振荡均匀阻尼控制方法。应用Prony算法辨识低频振荡模态,提取模态信息,深入分析低频振荡共振机理,选取低频振荡抑制设备(PSS),计算PSS的等值阻尼系数,合理调节PSS参数,再通过多台PSS的协作实现了智能电网低频振荡的均匀阻尼控制。实验数据表明:所研究方法有效地缩短了低频振荡抑制设备参数调节时间,增大了不同低频振荡模式的阻尼比,应用效果较好。Low frequency oscillation damages electrical equipment and seriously lead to the collapse of smart power grid.Traditional control methods have shortcomings in parameter adjustment.For this reason,a uniform damping control method of low frequency oscillation in smart grid is proposed.Prony algorithm is used to identify the low frequency oscillation modes and extract the modal information to analyze the resonance mechanism of low frequency oscillation.Low frequency oscillation suppression equipment(PSS)is selected to calculate the equivalent damping coefficient of PSS and adjust the parameters of PSS reasonably.Then,the uniform damping control of low frequency oscillation in smart grid is realized through the cooperation of multiple PSS.Experimental data show that the proposed method can effectively shorten the parameter adjustment time of low-frequency oscillation suppression equipment,increase the damping ratio of different low-frequency oscillation modes,and achieve good application effect.

关 键 词：智能电网 低频振荡 均匀阻尼控制 等值阻尼系数 参数调节 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] TP391[自动化与计算机技术—控制科学与工程]