Optimal output power coordinated control strategy of distributed power flow controller

• Published in: International journal of electrical power & energy systems Vol. 140; p. 108075
• Main Authors: Aihong, Tang, Wei, Zhou, Jingen, Song, Peng, Qiu, Qian, Chen, Xiaohui, Zhai, Huiyuan, Yang, Binyu, Xiong
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.09.2022
• Subjects: Device Loss; Distributed Power Flow Controller; Optimal Output Power Coordinated Control Strategy; Utilization Rate; Distributed Power Flow Controller; Utilization Rate; Device Loss; Optimal Output Power Coordinated Control Strategy
• ISSN: 0142-0615
• DOI: 10.1016/j.ijepes.2022.108075

•The operating loss of its sub-units and analyzes the output of the DPFC device based on the topology of DPFC is investigated.•An optimal output power coordinated control strategy of DPFC multi-sub-unit is proposed.•Simulation analysis based on PSCAD/EMTDC is carried out to verify the effectiveness of the proposed coordinated control strategy. Distributed power flow controller (DPFC) is composed of multiple sub-units distributed on the line, which improves the power flow transmission capacity and ensures high reliability of the line. The overall performance and power losses of DPFC are the major concern, which is largely determined by the output power assigned to each sub-unit. This paper investigates the operating loss of its sub-units and analyzes the output of the DPFC device based on the topology of DPFC. Considering the total loss of the DPFC device, the capacity utilization rate of the sub-units and relative constraints, an optimal output power coordinated control strategy of DPFC multi-sub-unit is proposed. The simulation platform of PSCAD/EMTDC is used to develop the simulation model of a typical 110 kV system consisting of 10 groups of sub-units with different capacities. The simulation results show that the optimal output power coordinated control strategy proposed in this paper can greatly reduce the total loss of the device compared with the traditional methods, such as equipartition method and the capacity proportion method. And the capacity utilization rate of the operated sub-units can reach over 87.5%.