NDLI: Optimal tripping transmission lines scheme based on SCC level and voltage stability

Content Provider	IET Digital Library
Author	Li, Shuaihu Zhu, Zheng Li, Yiquan
Abstract	The transmission capacity of the power grid is growing to meet the increasing electrical load demand in the past few decades. It makes the level of severity that short-circuit current (SCC) exceeds the interruption capability of circuit breakers much higher. To limit SCC, this study proposes a bi-objective optimisation model to determine the optimal tripping transmission lines scheme. In this proposed model, the objectives include the maximal effectiveness on limiting SCC and the minimal adverseness on voltage stability, which evaluate by the sensitivities of SCC and voltage stability margin on the tripping lines. Intelligence algorithms have been applied to solve the similar multi-objective problem. However, the optimisation methods cannot meet the requirement of the real-time application because the full-dimensional set of decision variables including all transmission lines is considered in the optimisation procedure. Thereby, the coordinated optimisation algorithm is adapted to accurately and fast achieve the optimal solution. The case study on the IEEE 39-bus system and a real-world 500 kV network in Guangdong province of China verify the effectiveness and practicality of the proposed method.
Starting Page	1709
Ending Page	1715
Page Count	7
ISSN	17518687
Volume Number	11
e-ISSN	17518695
Issue Number	Issue 7, May (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/11/7
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2016.1305
Journal	IET Generation, Transmission & Distribution
Publisher Date	2017-02-21
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Biobjective Optimisation Model China Electrical Load Demand Guangdong Province IEEE 39-bus System Intelligence Algorithm Load Management Multiobjective Problem Optimal Tripping Transmission Line Scheme Optimisation Optimisation Technique Power Grid Power Grid Transmission Capacity Power System Economics Power System Managemen Power System Operation Power Transmission Cables Power Transmission Line Real-world Network SCC Level Short-circuit Current Short-circuit Current Level Voltage Stability Margin
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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