基于区域发电可靠性的指数解析模型及其应用 (二)容量效益裕度评估  

Generation Reliability Exponential Analytic Model of Interconnected Areas and Its Application Part Two Capacity Benefit Margin Assessment

作　　者：孙荣富[1] 程林[1] 孙元章[1] 

机构地区：[1]清华大学电机系电力系统国家重点实验室,北京市100084

出　　处：《电力系统自动化》2007年第23期5-9,共5页Automation of Electric Power Systems

基　　金：国家重点基础研究发展计划(973计划)资助项目(2004CB217908)~~

摘　　要：目前在求解可用输电容量(ATC)时,容量效益裕度(CBM)的评估是根据预先设定的某一发电可靠性水平多次计算可靠性,进行迭代优化。在介绍发电可靠性指数解析模型的基础上,建立了考虑备用容量、联络线传输容量以及备用容量价格因素的3种数学模型,利用基于序列二次规划的算法,求解电力系统中对应于不同可靠性水平下的联络线CBM。该模型采用了区域备用容量和联络线传输容量的指数解析式,并考虑了区域之间的耦合关系,因此,在进行CBM优化时无需迭代,可快速准确地求解不同可靠性要求下的最优CBM。对TH-RTS测试系统的优化结果表明模型的准确性和有效性。Capacity benefit margin （CBM） is evaluated and optimized via an iterative method based on a presumed generation reliability level when the available transfer capability （ATC） is calculated. Based on the generation reliability exponential analytic model of interconnected areas presented in the first part, three models are developed in consideration of the reserve capacity, tie line transfer capability and reserve price. The sequential quadratic programming （SQP） is used to solve the CBM of transmission lines corresponding to different reliability levels. Since it is an analytic model, reliability indices can be calculated quickly without any iteration. The coupling effects between different areas are also considered. Test results on THRTS indicate the precision and effectiveness of the model proposed.

关 键 词：区域发电可靠性 可用输电容量 容量效益裕度 序列二次规划 

分 类 号：TM732[电气工程—电力系统及自动化]