Research on Multi Time Scale Scheduling based on Active Distribution Network

Abstract

The active distribution network is a public distribution network with a flexible structure, which adopts the mode of active management of distributed power supply, energy storage equipment and customer two-way load. In order to reasonably plan the distributed power, coordinate the optimal operation of the distributed power and give full play to the active role of new power sources and loads such as the distributed power, it is necessary for the distribution network to take active management and planning. The multi time scale coordinated control strategy of active distribution network can make up for the prediction error of renewable energy and load in the future, and give full play to the active role of new generation such as distributed generation. Multi time scale scheduling includes the global optimal control of active distribution network on the long time scale, the correction of long time scale prediction error on the short time scale and the regional autonomous control of real-time active distribution network. The study of multi-objective function and multi time scale scheduling can control multiple optimization objectives, integrate economic environment and other factors, which has the significance of compensating the prediction error of renewable energy and load in the future.