Optimal Energy Dispatching Strategy for Microgrid Considering Multi-Scale Demand Response Resources

doi:10.3969/j.issn.1000-7229.2018.08.002

Abstract

Abstract: With the deepening of the power system reform, the operation mode of multi investment and centralized management has been formed in the user-side microgrid. It is of great practical significance to study the energy optimization of microgrid considering the interests of operators. In this paper, the optimal energy dispatching strategy for microgrid is proposed, which aims at maximizing the income of the operators purchasing and selling electricity and minimizing the demand response compensation cost. Considering the multi-time scale characteristics of demand response, this strategy brings two demand response resources, i.e. aggregated air conditioning and electric vehicles, into three different time scales dispatching plan （namely day-ahead, in-day, and real-time dispatch）, and optimizes the energy storage system output and demand response supply step by step to realize the global benefit maximization of the operators. Load aggregator predicts controllable capacity of load in each period and takes response dispatch in real time, on the basis of the control model of aggregated air conditioning and electric vehicles. Finally, the test results have verified the effectiveness of the proposed method.

Key words: microgrid, optimal energy dispatching, demand response, multi-time scale

CLC Number:

TM 72

LIU Baolin, ZHOU Shaoxiong, CHEN Yaosheng, YANG Ping. Optimal Energy Dispatching Strategy for Microgrid Considering Multi-Scale Demand Response Resources[J]. Electric Power Construction, 2018, 39(8): 9-17.

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