Optimal Strategy for Centralized Regulation of Distributed Power Supply in Medium-voltage Distribution Network

• Published in: 2022 5th International Conference on Energy, Electrical and Power Engineering (CEEPE) pp. 569 - 573
• Main Authors: Chen, Gang, Wang, Zezhou, Qian, Fengqiang, Jia, Dongli, Yu, Haomiao, Kang, Tianyuan
• Format: Conference Proceeding
• Language: English
• Published: IEEE 22-04-2022
• Subjects: centralized control; Computational modeling; distributed power source; Distribution networks; Medium voltage; medium voltage distribution network; Optimal control; Power engineering; Simulation; Voltage fluctuations
• DOI: 10.1109/CEEPE55110.2022.9783367

With the increasingly prominent problems of distribution network voltage fluctuation and excessive network loss brought about by the connection of a large number of photovoltaic users to the grid, in order to meet the needs of the transformation from traditional power grids to smart grids, this paper studies the control strategy of medium-voltage distribution networks, combined with the communication and computing capabilities of the medium-voltage distribution network, the "centralized optimal control model of the medium-voltage distribution network" is proposed. At the medium voltage level, a minute-level optimal control model is established based on the three-phase optimal power flow, and the output of distributed power in the medium-voltage distribution network is regulated with the goal of network loss, voltage offset and distributed power consumption. Comparing the voltage distribution and network loss before and after optimization, the simulation results show that the optimal control model can improve the voltage quality, distribute the distributed power output reasonably, and reduce the network loss.