Control Strategy of Virtual Power Station in Distribution Transformer Area under Edge Computing Architecture
Liu Dongqi1,2, Zeng Xiangjun1, Wang Yaonan2
1. School of Electrical and Information Engineering Changsha University of Science and Technology Changsha 410114 China; 2. National Engineering Laboratory for Robot Visual Perception and Control Technology Changsha 410082 China
Abstract：In this paper, the operating mode and control method of distributed virtual power station in distribution network platform area under the framework of edge computing information network are presented. Firstly, the load, distributed energy and electric vehicles under the jurisdiction of each 380V distribution transformer station area are regarded as a virtual power station. Distribution transformer supervisory terminal unit (TTU) with edge computing capability is deployed on the low-voltage side of the Transformer in the Distribution station room, box Transformer or pole Transformer in each station area. Then, according to the physical quantity information of the distribution transformer monitored by the edge computing capacity of the distribution transformer terminal, the equivalent generalized load (source) of distributed generator (DG) and electric vehicles is perceived in each station area. On this basis, the local control of grid connection condition of electric vehicles in each station area is carried out by edge computing. For active power, the charging/idle working state of electric vehicles is regulated based on chaos optimization algorithm, which can not only absorb the DG power in the transformer area, but also take into account the peak shaving demand of large power grid. For reactive power, the idle electric vehicle is controlled as a virtual synchronous adjustment camera to support the local voltage and realize the local reactive power free. The method proposed in this paper provides a new solution and control scheme for the operation and control of distributed energy and electric vehicles widely connected distribution network, and promotes the expansion and development of the operation mode of distribution network from "centralized regulation" to "distributed autonomy".
刘东奇, 曾祥君, 王耀南. 边缘计算架构下配电台区虚拟电站控制策略[J]. 电工技术学报, 2021, 36(13): 2852-2860.
Liu Dongqi, Zeng Xiangjun, Wang Yaonan. Control Strategy of Virtual Power Station in Distribution Transformer Area under Edge Computing Architecture. Transactions of China Electrotechnical Society, 2021, 36(13): 2852-2860.
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2021, Vol. 36 
