Electric Power ›› 2023, Vol. 56 ›› Issue (12): 113-126.DOI: 10.11930/j.issn.1004-9649.202310024

• Key Technologies for Improving the Resilience of Power Systems • Previous Articles     Next Articles

Flexible Control Device Configuration Planning for Transmission Network Resilience Enhancement

Li LI1(), Xin HUANG2(), Tianyuan XU2(), Yue CHEN1, Qiuyu LU1, Yinguo YANG1, Yang LIU1, Yu ZHU1, Gengfeng LI2, Chengcheng SHAO2()   

  1. 1. Power Dispatching Control Center, Guangdong Electric Power Co., Ltd., Guangzhou 610041, China
    2. Department of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, China
  • Received:2023-10-09 Accepted:2024-01-07 Online:2023-12-23 Published:2023-12-28
  • Supported by:
    This work is supported by Science and Technology Project of China Southern Power Grid Corporation (No.036000KK52200061).

Abstract:

To enhance power system resilience and ensure the capability of transmission grid to handle the events of low-probability but high impacts, a flexible control device configuration planning framework for transmission network is proposed based on robust optimization theory. This framework fully considers the optimal synergy among different categories of control devices, including optimal transmission switch (OTS) under remote switch configuration, transmission line reinforcement devices and energy storage systems (ESS), aiming to minimize the operational costs while reducing the economic losses caused by extreme events. Firstly, a two-stage robust planning model is constructed based on the load duration curves (LDC), considering typical daily interruptions of transmission lines and renewable energy output fluctuations. And then, the modified Nested Column-and-Constraints Generation (NCCG) algorithm is employed to solve the proposed model, and relevant acceleration strategies are utilized to enhance the computational efficiency. Finally, a simulation analysis is conducted using the IEEE 24-bus system to validate the planning synergy among different flexible control devices and to assess the effectiveness of the proposed model.

Key words: power system resilience, robust optimization, flexible control device configuration, optimal transmission switch, transmission line reinforcement, energy storage system planning, nested column-and-constraints generation