基于继电特性函数的互联电力系统混沌控制  

Chaotic control of the interconnected power system based on the relay characteristic function

作　　者：闵富红[1] 马美玲[1] 翟炜[2] 王恩荣[1] 

机构地区：[1]南京师范大学电气与自动化工程学院,南京210042 [2]国网电力科学研究院,南京210003

出　　处：《物理学报》2014年第5期62-69,共8页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:51075275);江苏省自然科学基金(批准号:BK20131402);教育部留学回国人员科研启动基金(批准号:教外司[2012]1707号);江苏省六大人才高峰资助课题;江苏省普通高校研究生科研创新计划项目(批准号:CXLX13_391)资助的课题~~

摘　　要：电力系统中的混沌振荡对整个互联电网具有极大危害.本文利用Lyapunov指数、分岔图、相平面图和功率谱等分析一个简单互联电力系统的动力学行为,研究电力系统对电磁功率扰动幅值的敏感性.同时,提出一种基于继电特性函数的准滑动模态控制方法,对系统进行混沌振荡抑制,使系统快速平滑地到达控制目标.实验表明,该方法不仅能够缩短控制时间,减少因参数过大带来的系统冲击,而且对高频抖动也有很好的抑制作用,具有较强的鲁棒性.Chaotic oscillation in a power system is very harmful for the large-scale interconnected power grid. Here, the basic dynamic properties of the interconnected power system are investigated under the disturbance of electromagnetic power through the Lyapunov exponent spectrum, bifurcation diagram, phase plane, and power spectrum. The sensitivity to the disturbance of electromagnetic power is also studied. Meanwhile, from the sliding mode variable structure control and relay characteristic function, a new method to control the chaotic oscillation is presented, which can quickly and smoothly make the system reach the expected target. Simulation results show that the method can not only shorten the control time, but also reduce the possibility of the impulse response from the system, due to the large parameters. It can inhibit the high-frequency bufieting efiectively and has strong robustness.

关 键 词：互联电力系统 滑模变结构控制 继电特性函数 

分 类 号：TM712[电气工程—电力系统及自动化]