Optimal Dispatching Model of Active Distribution Network Considering Uncertainty of Demand Response

Abstract

With the development of active distribution network, demand response, as an important adjustable resource, is introduced into the distribution network system to ensure the safe, stable and economic operation of the distribution network system under the combined action of distributed generation, energy storage and other equipment. However, the uncertainty of the external environment in the response process and the uncertainty of the price demand curve make the demand response have greater uncertainty in the current active distribution network system. Based on this, considering the reliable and economical operation of active distribution network, a scheduling optimization model of active distribution network considering demand response uncertainty is proposed in this paper, aiming to minimize the operating cost. This paper focuses on the analysis of two different types of demand response: incentive-based demand response and price-sensitive demand response, whose influence of uncertainty on costs is also considered. And the model is linearized by piecewise linearization. Finally, a modified IEEE33 node example is used to verify that the proposed model can improve the operation superiority of the system to a certain extent.