A TLBO Algorithm for Design Optimization of DVRs in an Interline DVR (IDVR)

Because of the limitation of active power exchange between dynamic voltage restorers (DVRs) in an interline DVR (IDVR), selection of the appropriate voltage for each DVR in an IDVR should be carried out according to two conditions. First, voltage sags in each of the feeders are compensated, and second, IDVR rated kVA and total cost are reduced. To serve this purpose, a convenient strategy based on teaching-learning based optimization algorithm is proposed which can minimize sum of rated kVAs of DVRs. Comparing the results of this new method with the well-known published work in the literature reveals the importance and efficiency of the proposed method.