Comparative Analysis of Wait-and-See Model for Economic Dispatch of Wind Power System

doi:10.3969/j.issn.1000-7229.2016.06.010

Abstract

Abstract:

To make a better choice of the model of the power system dispatching plan with the random characteristics of wind power， this paper compares three economic dispatch wait-and-see models based on wind power scenario. The difference between two kinds of objective functions are compared and analyzed， which are ‘the minimum distance to the mean of wind power’ and ‘the minimum adjustment amount of dispatching plan’. Based on the power balance equation， we deduce and compare the dispatching plans obtained by three models and the regulation ability and adjustment amount for coping with the actual possibility of wind farm scenarios. Finally， taking the IEEE 24 node system as the example， we compare and analyze the simulation results of three models from the aspects of operating cost， adjusting ability， adjusting range， abandoning air volume， and so on. The analysis results show that the model with the minimum adjustment as objective has obvious advantages in robustness， economy and computation speed compared with other two models. The proposed three economic dispatch models and the comparative analysis results can provide important references for the dispatching plan optimization of the wind power system scheduling schemes.

Key words: wait-and-see model, economic dispatch, dispatching plan, wind power scenario, random characteristics

CLC Number:

TM 61

LI Jinhua， ZHU Dunlin， PAN Yi. Comparative Analysis of Wait-and-See Model for Economic Dispatch of Wind Power System[J]. Electric Power Construction, 2016, 37(6): 62-69.

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