Optimal Transmission Line Switching Incorporating Dynamic Line Ratings

被引：0
|
作者：
Zhang, Shang [1 ]
Liu, Chen-Ching [2 ]
Gu, Xueping [1 ]
Wang, Tao [1 ]
机构：
[1] North China Elect Power Univ, Sch Elect & Elect Engn, Baoding 071003, Hebei, Peoples R China
[2] Washington State Univ, Sch Elect Engn & Comp Sci, Pullman, WA 99164 USA
来源：
2017 IEEE PES INNOVATIVE SMART GRID TECHNOLOGIES CONFERENCE EUROPE (ISGT-EUROPE) | 2017年
基金：
美国国家科学基金会;
关键词：
Power system security; homogeneous dispatch; transmission switching; integer programming; dynamic line rating; SECURITY;
D O I：
暂无
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
Real-time ampacities of overhead transmission lines vary in time with the actual operation conditions. Therefore, the security margin of power system operation can be reduced when the dynamic line rating (DLR) is considered. In this paper, the model of homogeneous dispatch with transmission switching is proposed to take into account dynamic line ratings. The realistic power flow limits of transmission lines are decided by dynamic line ratings that depend on both real-time ambient conditions and conductor properties. Optimal transmission switching (OTS) based on N-1 DC Optimal Power Flow (DCOPF) model is formulated as a mixed-integer nonlinear programming (MINLP) problem. Then the homogeneity of power flow distribution is improved by transmission switching while maintaining N-1 security. The IEEE 118-bus test system is utilized to validate the effectiveness of the proposed model.
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页数：5
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