Research on IPFC-Based Dynamic Droop Control Strategy

Chaofan Ding, Xiaopeng Li, Baohong Li (), Qin Jiang, Menghao Wen and Tianqi Liu
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Chaofan Ding: College of Electrical Engineering, Sichuan University, Chengdu 610065, China
Xiaopeng Li: Power Internet of Things Key Laboratory of Sichuan Province, Chengdu 610072, China
Baohong Li: College of Electrical Engineering, Sichuan University, Chengdu 610065, China
Qin Jiang: College of Electrical Engineering, Sichuan University, Chengdu 610065, China
Menghao Wen: College of Electrical Engineering, Sichuan University, Chengdu 610065, China
Tianqi Liu: College of Electrical Engineering, Sichuan University, Chengdu 610065, China

Energies, 2023, vol. 16, issue 14, 1-16

Abstract: The interline power flow controller (IPFC) presents a promising solution for managing the directional and quantitative interaction of power between different lines, facilitating a significant improvement in power system stability. Based on such a background, this paper proposes a dynamic droop control strategy to improve frequency stability through the use of IPFC equipment. To enhance the active power support ability of the IPFC, additional frequency control for the IPFC’s active power control loop is designed with droop control, where each IPFC’s power flow control limitations are also considered to make sure the original power of each line is controllable. Besides the addition of such basic control, the proposed droop strategy is designed in a dynamic style. The droop coefficients of each IPFC can be varied according to each line’s power transmission margin, such that the power fluctuations can be shared more reasonably based on such a dynamic droop coordination strategy. The proposed methods are verified through PSCAD simulations. The results show that the dynamic droop control cannot only suppress the frequency disturbance, but also make power dispatch more efficient.

Keywords: IPFC; droop control; frequency stability; dynamic control (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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