MANAGEMENT METHOD FOR CONNECTING DISTRIBUTED POWER SUPPLIES AND MICRO GRID TO MAIN POWER GRID

摘要

A management method for connecting distributed power supplies and micro grid to main power grid comprises power grid demand response or daily dispatching; responding to demands; developing a strategy which comprises simulating a micro grid system, adjusting parameters of devices of each micro power supply system in the micro grid, corresponding to a parameter influence table according to adjusted parameter values, obtaining power generation forecast according to a matching algorithm, obtaining economic benefit brought by parameter adjustment in combination with information such as electricity price, adjusting parameters according to results, finally obtaining a reasonable maximum benefit model, and forming a corresponding strategy; approving process through dispatching; and executing the strategy. The demand response, the dispatching process and the micro grid strategy form a closed loop. Thus, power supply reliability is improved, the uniform dispatching when executing demand response in the power grid during peak demand for electricity is realized, stability and controllability of power transmission between the distributed power supplies and the micro grid and between the micro grid and the main power grid and coordinated control between a plurality of distributed power supplies are guaranteed, and united strategy control on the whole operation of the micro grid is performed.