Control Method for Energy Trading in Smart-grid

摘要

The present invention relates to a control method for a transmission and distribution network control system for power transaction between power grids on a smart grid transmission and distribution network. More specifically, the present invention relates to a method, in which, on the smart grid transmission and distribution network including a plurality of power grids each including a distributed power supply and an energy storage device and partitioned, when a control module included in each power grid measures and calculates power consumption, generated power, and an energy storage device capacity in each power grid in real time and transmits the same to a control system of the transmission and distribution network, the control system of the transmission and distribution network synthesizes real-time present conditions of the power grids and supplies surplus power to the transmission and distribution network, or receives power from the transmission and distribution network, selects the power grids to be stored in the energy storage device, determines the magnitude of the power to supply or receive, and controls the distributed power supply and the energy storage device included in each power grid through the control module of each power grid. That is, the present invention provides a method for transacting power between the power grids by supplying power to or receiving power from the transmission and distribution network through controlling the distributed power supply or the energy storage device of the power grid in power grid units on the basis of real-time data on each power grid. To this end, the present invention allows the transmission and distribution network control system to supply power by selecting a method for comparing the surplus power and stored reserve power of the entire power grid and supplying power around a power grid having surplus power depending on the result or receiving power around a power grid having stored reserve power.