| 基于MATCONT的电力系统电压稳定分岔及控制仿真试验 |
| |
| 引用本文： | 李升,徐艳,陈建华,陈小强.基于MATCONT的电力系统电压稳定分岔及控制仿真试验[J].实验室研究与探索,2011,30(12):63-67. |
| |
| 作者姓名： | 李升 徐艳 陈建华 陈小强 |
| |
| 作者单位： | 南京工程学院电力工程学院,江苏南京,211167 |
| |
| 基金项目： | 江苏省高校自然科学研究计划项目(08KJD470008);江苏省高校大学生实践创新训练计划项目(166201100009) |
| |
| 摘 要： | 介绍了电力系统ODE模型中引起电压失稳的常见分岔类型及分岔控制的基本概念；运用基于Matlab的数值分岔分析软件MATCONT对一个经典单机—动态负荷系统进行了分岔分析,验证了PQ动态负荷模型系统存在着鞍结分岔(SNB)现象,而RL动态负荷模型系统并无分岔现象产生.为延迟PQ动态负荷模型系统的鞍结分岔点,在原系统中引入了线性状态反馈控制和SVC控制两种分岔控制方法.MATCONT仿真结果显示,这两种控制方法均能够有效延迟鞍结分岔,从而提高系统的电压稳定性,并可通过选择合理的反馈控制器增益及SVC增益获得理想的分岔控制效果.
|
| 关 键 词： | 电压稳定 MATCONT 鞍结分岔 分岔控制 线性状态反馈控制 静止无功补偿器 |
Simulation Tests of Voltage Stability Bifurcation and Control in Power Systems Based on MATCONT |
| |
| LI Sheng
,
XU Yan
,
CHEN Jian-hua
,
CHEN Xiao-qiang.Simulation Tests of Voltage Stability Bifurcation and Control in Power Systems Based on MATCONT[J].Laboratory Research and Exploration,2011,30(12):63-67. |
| |
| Authors: | LI Sheng XU Yan CHEN Jian-hua CHEN Xiao-qiang |
| |
| Institution: | (School of Electric Power Engineering,Nanjing Institute of Technology,Nanjing 211167,China) |
| |
| Abstract: | The bifurcation types that induce voltage instability in the ODE model in power systems and the concept of bifurcation control were introduced in this paper.The MATLAB-based numerical bifurcation analysis software MATCONT was used to study the bifurcation behavior of a classical single-machine dynamic-load system.The simulation results show that there is a saddle-node bifurcation(SNB) in the PQ dynamic-load model system and there are no bifurcations in the RL dynamic-load model system.To delay the SNB point of the PQ dynamic-load model system,the linear state feedback control method and SVC control method were used respectively in the original system.The MATCONT simulation results prove that the two types of bifurcation control methods can both delay the SNB effectively and thus improving voltage stability.And the conclusion reached can demonstrate that ideal control can be achieved by choosing appropriate value of the feedback controller gain and SVC gain. |
| |
| Keywords: | Voltage stability MATCONT saddle-node bifurcation(SNB) bifurcation control linear state feedback control SVC |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
