首页 | 本学科首页   官方微博 | 高级检索  
     

电力市场稳定性与电力系统稳定性的相互影响
引用本文:薛禹胜.电力市场稳定性与电力系统稳定性的相互影响[J].电力系统自动化,2002,26(21):1-6,33.
作者姓名:薛禹胜
作者单位:国家电力公司电力自动化研究院,江苏省南京市,210003
基金项目:国家重点基础研究专项经费资助项目 (G19980 2 0 30 1),国家自然科学基金资助项目 (5 992 0 0 37),国家电力公司科技项目(SP11- 2 0 0 1- 0 1- 0 4- 0 2 )
摘    要:讨论了电力市场经济稳定性问题的特点,模型,及其与电力系统物理稳定性的关系,电力生产和消费必须每时每刻平衡,其流通环节在物理和技术上都具有自然垄断性,但其生产规模的扩大却需要很长的时滞。一方面,为了充分利用稳定极限输电能力,并正确地对发电和输电投资进行引导,在输电费用必须考虑物理系统失稳的风险,从而影响到电力市场经济稳定性,另一方面,电力市场通过发电竞争以及对发电和输投资到电力系统物理稳定性,经济领域现有的动态模型和稳定性研究方法都适用于电力市场,必须重新定义状态变量,建立合理的数学模型,正确地反映利润积累,投资行为,可用发电容量和可用输电容量的动态行为,正确地反映电力市场经济动态与电力系统物理动态之间的相互影响,市场的各参与者可以在仿真系统提供的平台上,选用代数方程,微分方程,差分方程,以及知识表达式来自己定义交易结算规则或各自的博弈策略,如同虚拟作战指挥仿真系统,这些主观决策是仿真系统的输入信息,而并非由仿真算法固定,在用数值仿真得到电力市场对扰动的时间响应曲线后,就可利用轨迹保稳降维(TSPDR)理论,根据实际的高纸轨迹来提取有界稳定性信息及结构稳定性信息,例如,计算电力系统动态阻塞的风险,求取电力市场的稳定裕度,市场崩溃的临界条件,支持控制决策,研究物理-经济稳定性的交互影响,并分析电力市场的结构稳定性。

关 键 词:电力市场  稳定性  电力系统稳定性  数学模型  稳定裕度  电网
收稿时间:1/1/1900 12:00:00 AM
修稿时间:1/1/1900 12:00:00 AM

INTERACTIONS BETWEEN POWER MARKET STABILITY AND POWER SYSTEM STABILITY
Xue,Yusheng.INTERACTIONS BETWEEN POWER MARKET STABILITY AND POWER SYSTEM STABILITY[J].Automation of Electric Power Systems,2002,26(21):1-6,33.
Authors:Xue  Yusheng
Abstract:Power markets are largely different from other markets in nature. Their differences, which significantly influence the economic dynamics, in goods production, storage, transmission, consumption, trade settlement, auxiliary service and investment etc, are summed up in this paper. The very strong interactions between power market dynamics and power systems stability are investigated as well. With the defined state variables, a frame-model and a simulation platform are proposed for studying the integrated physic-economic power system. The market rules as well as the game strategies are input by participants in forms of logic-difference-differential-algebraic expressions just like what happened in battle simulators. After integrating the established model and obtaining the whole time-responses, the stability-preserving trajectory-reduction method is applied to analyze both bounded stability and structure stability. The key idea is to map the actual time-responses curves into a set of R 2 planes by using suitable linear transformation with stability preserving. Therefore, stability can be quantitatively measured, and routes to both divergence and chaos can be deeply understood.
Keywords:power market  power systems  physic-economic dynamics  models  stability margin
本文献已被 CNKI 维普 万方数据 等数据库收录!
点击此处可从《电力系统自动化》浏览原始摘要信息
点击此处可从《电力系统自动化》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号