Research on Optimal Decision-making of Flexible Load Based on Future Risk Section

Abstract

With the development of new energy scale and the change of power grid characteristics, the dispatch space of traditional regulation resources is getting smaller and smaller, and it is urgent to effectively expand the power grid regulation resources and promote the transformation of the traditional model of “ source following load” to the collaborative mode of “source-load interaction”. In this paper, in view of the problem of section limitation, future risk identification and load optimization decision-making techniques are proposed. Based on the adjustment of original unit and transfer mode, a hierarchical grading aggregation method for schedulable load is proposed, and a linear optimization algorithm for minimizing removing load is designed according to the sensitivity of the load side to the section, and expand the resource adjustment under local section constraint. Zhejiang Power Grid has carried out marketing side and millions-seconds-level resource aggregation, and verified this method for frequently restricted sections, reducing the time for cross-sections to exceed the limit.