特高压交流输电模型的建立与经济性优选分析

交流1 000 k V和500 k V具有不同的适用输电容量与距离范围。针对电源点送出的不同情况,应合理选择电压等级,并匹配相应的线路回数、串补度、开关站等。以往多采用BPA仿真软件通过连续潮流算法得到,但该方法计算调整复杂且费时,需对多种送电需求情况进行分析时计算量尤为庞大。提出一种基于交流线路输电能力的算法,采用Matlab软件编程实现交流输电模型建模及经济性优选方法。该方法可以在考虑电网强度等因素情况下,采用热限制、电压降落限制、稳定限制等约束条件,得到交流线路输电能力曲线。在此基础上,建立超、特高压交流输电模型,结合单位容量年费用比较法进行经济性优选,最终得到满足电源点送电任意输电容量...

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Bibliographic Details
Published in电力系统保护与控制 Vol. 43; no. 3; pp. 91 - 96
Main Author 杨昊 王丹 刘涤尘
Format Journal Article
LanguageChinese
Published 武汉大学电气工程学院,湖北 武汉,430072%苏州市供电公司,江苏 苏州,215000 2015
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ISSN1674-3415

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Summary:交流1 000 k V和500 k V具有不同的适用输电容量与距离范围。针对电源点送出的不同情况,应合理选择电压等级,并匹配相应的线路回数、串补度、开关站等。以往多采用BPA仿真软件通过连续潮流算法得到,但该方法计算调整复杂且费时,需对多种送电需求情况进行分析时计算量尤为庞大。提出一种基于交流线路输电能力的算法,采用Matlab软件编程实现交流输电模型建模及经济性优选方法。该方法可以在考虑电网强度等因素情况下,采用热限制、电压降落限制、稳定限制等约束条件,得到交流线路输电能力曲线。在此基础上,建立超、特高压交流输电模型,结合单位容量年费用比较法进行经济性优选,最终得到满足电源点送电任意输电容量和输电距离需求下的经济性最优交流输电电压等级及其输电模型配置,对于我国输电线路的规划建设具有重要的参考意义和实用价值。
Bibliography:YANG Hao,WANG Dan,LIU Dichen(1. College of Electrical Engineering, Wuhan University, Wuhan 430072, China; 2. Suzhou Power Supply Company, Suzhou 215000, China)
1 000 k V AC transmission and 500 k V AC transmission have different applicable transmission capacity and range. According to the different situation of power station, there should be a reasonable choice of voltage level, matching the corresponding circuits, series compensation degree, switch station. The traditional method uses the BPA simulation software to obtain that by continuous power flow algorithm. But this method is complicated and time-consuming. Calculation is particularly large when electricity has a variety of power demand analysis. This paper presents an algorithm based on the AC line transmission capacity, Matlab software programming is used to achieve the establishment of UHV AC transmission model and economical optimization strategy. The method can use thermal limit, voltage limit, landing stability constraints to get the AC line transm
ISSN:1674-3415