An Algorithm of Emergent Power Control among Wind Farms

Abstract

Abstract-When emergent active power abscission command is given to wind farm cluster by dispatching center, it is necessary for wind farms to coordinate with each other to optimize power abscission distribution. This paper firstly analyzes active power abscission ways of wind farm, and four kinds of power allocation algorithm models, such as wind power allocation algorithm based on combination of cut wind farms, are proposed based on this. Then, a comprehensive evaluation index is constructed by weighted combination of five indicators, such as distribution deviation and the number of cut wind farms, to evaluate the algorithms. Finally, an actual wind power cluster is employed as an example to verify the validity of proposed algorithms. Distribution results and comprehensive evaluation index values indicate that application scope of different allocation algorithm is different and the algorithm based on the cumulative power abscission of wind farms has smallest comprehensive evaluation index value and widest application scope.Key words-wind farms; emergent power abscission; wind power distribution; cumulative amount of emergent power abscission; comprehensive evaluation index