Multi-Period Optimal Transmission Switching with Voltage Stability and Security Constraints by the Minimum Number of Actions

Mei Zhang, Lei Wang (), Jiantao Liu, Xiaofan Deng and Ke Wu
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Mei Zhang: State Key Laboratory of Operation and Control of Wind Energy & Storage Systems, China Electric Power Research Institute, Beijing 100192, China
Lei Wang: School of Electrical and Electronic Engineering, Shandong University of Technology, Zibo 250061, China
Jiantao Liu: School of Electrical and Electronic Engineering, Shandong University of Technology, Zibo 250061, China
Xiaofan Deng: Jiaxiang Power Supply Company of State Grid, Shandong Electric Power Company, Jining 314100, China
Ke Wu: School of Electrical and Electronic Engineering, Shandong University of Technology, Zibo 250061, China

Sustainability, 2024, vol. 16, issue 18, 1-19

Abstract: Due to the ever-growing load demand and the deregulation of the electricity market, power systems often run near the stability boundaries, which deteriorates system voltage stability and raises voltage issues for the stable operations of power systems. Transmission switching (TS) has been applied to improve economic benefits and security operations for many applications. In this paper, a multi-period voltage stability-constrained problem (MP-VSTS) is established, intending to improve voltage security and the stability of a power system. Considering the online application of transmission switching, the minimum number of switching actions is taken as the objective function of the proposed MP-VSTS problem, which extends the TS application for real industries. The proposed model provides the switching lines for the upcoming period and the state of power systems for several successive periods. To overcome the solving difficulties of the proposed model, a two-stage approach is presented, which balances speed and accuracy. Numerical studies on the IEEE 118- and 662-bus power systems have demonstrated the proposed approach’s performance.

Keywords: multi-period transmission switching; static voltage stability; voltage security; load margin; the minimum number of actions (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2024
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