摘要
针对当前复杂电力系统的数学模型的多变量、高阶次、强耦合,把H∞控制中的模型匹配问题与高阶系统平衡截断降阶方法相结合,提出了鲁棒降阶控制方法.应用这种方法对两区域间互联电力系统进行降阶,并与改进平衡法的降阶系统进行仿真比较,然后对鲁棒降阶系统进行解耦.通过仿真结果可以看出鲁棒降阶方法具有更好的降阶效果,降阶系统可以达到所希望的性能要求.
In view of the multi-variable, high-order and strong-coupled complex power system, the robust reduction is proposed. It combines the model match problem and high-order model balance truncation reduction problem together. This method is applied to the two regional interconnected power system and compared with the reduced system of the improved balanced method, then the robust reduction system is decoupled. The simulation result shows that using robust reduction can get better reduced model and the reduced system can get the expected performance.
出处
《兰州交通大学学报》
CAS
2009年第3期36-40,共5页
Journal of Lanzhou Jiaotong University
基金
甘肃省自然科学基金项目(3ZS042-B25-039)
兰州市科技发展计划项目(2008-1-2)
关键词
鲁棒降阶
电力系统
H∞模型匹配
平衡截断
解耦
robust reduction
power system
model match
balance truncation
decoupling
