摘要
电力系统负荷建模问题作为一个区别于其他建模问题的特殊的电力系统难题,关键在于负荷的时变性。基于量测的建模方法中常用的单一的多项式模型和指数模型已经不能满足要求,而其他输入输出模型又十分复杂,难以实现。基于量测的建模方法,针对电力系统负荷建模和模糊T-S模型的特点,把模糊T-S模型用在了非线性的动态负荷建模中,在一定程度上解决由于负荷强时变性而难以进行负荷建模的问题,简化了复杂的负荷模型,并得到了比传统的多项式模型和指数模型更加精确的辨识结果,同时给出了负荷建模装置的硬件设计电路。实际应用结果证实了所提方法的有效性和实用性。
The most difficult aspect of load modeling, which differentiates itself from other modeling problems, lies in the fact that the load is time-variant. Single polynomial model or exponential model in measurement-based theory can＇t satisfy the request, and other input-output models are very hard to realize. Aiming at the characteristic of the load modeling and fuzzy T-S model, the fuzzy T-S model for non-linear dynamic load model was proposed. To a certain extent it solves the problem based on strong time-variant of the load and predigests the complicate model. And the simulation results of T-S fuzzy model are more accurate than the simulation results of traditional polynomial model and exponential model. The load modeling device hardware was designed. The application on power load modeling results shows validity and practicability of the method.
出处
《中国电力》
CSCD
北大核心
2009年第10期29-32,共4页
Electric Power
基金
国家自然科学基金资助项目(60325311
60274017
60572070
60534010)
863重点课题资助项目(2006AA04Z183)
辽宁省科学基金资助项目(20022030)
