Economic Dispatch Considering Correlations of Solar and Load

Abstract

An economic dispatch considering correlation between solar and load is proposed. The probabilistic density functions of solar and load are introduced, and then solar-load bivariate normal distribution is established based on multivariate statistical analysis technique. The loss load risk model of typical scenario is constructed and the economic dispatch model is established. α-superquantile is used to describe the risk constraint, Monte Carlo simulation and analytic method were combined to solve the optimization model. Results show that proposed method can describe the impact of correlation of solar and load on economic dispatch at different confidence levels.