特高压交流输电模型的建立与经济性优选分析

杨昊; 王丹; 刘涤尘

引用本文:	杨昊,王丹,刘涤尘.特高压交流输电模型的建立与经济性优选分析[J].电力系统保护与控制,2015,43(3):91-96.
	YANG Hao,WANG Dan,LIU Dichen.Establishment of UHV AC transmission model and economical optimization strategy[J].Power System Protection and Control,2015,43(3):91-96

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特高压交流输电模型的建立与经济性优选分析
杨昊¹, 王丹², 刘涤尘¹
1.武汉大学电气工程学院，湖北武汉 430072;2.苏州市供电公司，江苏苏州 215000

摘要:

交流1 000 kV和500 kV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

关键词: 交流线路输电能力输电模型单位容量年费用法经济性优选 Matlab

DOI：10.7667/j.issn.1674-3415.2015.03.013

分类号:

基金项目:国家高技术发展计划项目(863计划)(2011AA 05A119)；国家电网公司重大专项资助项目课题(SGCC- MPLG029-2012)

Establishment of UHV AC transmission model and economical optimization strategy

YANG Hao¹, WANG Dan², LIU Dichen¹

1.College of Electrical Engineering, Wuhan University, Wuhan 430072, China;2.Suzhou Power Supply Company, Suzhou 215000, China

Abstract:

1 000 kV AC transmission and 500 kV 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 transmission capacity curve by considering the factor of power network strength. On the basis of this method, an UHV AC transmission model can be built combined with unit capacity annual cost algorithm, which can meet the power transmission of arbitrary transmission capacity and the optimal economic of any transmission distance, has an important reference significance and practical value for the planning and construction of electric transmission lines in China.

Key words: line transmission capacity transmission model unit capacity annual cost algorithm economic optimization Matlab

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