Optimal phase shifter calculation based on adaptive genetic algorithm

SUN Wenduo
(School of Electrical Engineering, Zhejiang University, Hangzhou 310027, China)

Abstract: In order to solve the problems of unbalanced power transmission on grids, one of flexible AC transmission system: phase shifter was investigated. On the basis of analyzing its principles and applications, the site selection of phase shifter optimization was researched. The method for site selection based on resolving overload or heavyload of power grid was put forward, this method was divided by two steps: preliminary screening based on power flow margin and site selection based on utilizing rate of transmission lines. The analysis result of site selection optimization for IEEE57 bus system under typical operating mode shows that the proposed index and method are highly efficient and valid, and shows the system reliability can be greatly improved.
Key words: phase shifter; reliability; power flow margin; adaptive genetic algorithm; optimal calculation