Optimal Operation of Unified Power Flow Controller under Controlled Conditions

This paper emphasizes a methodology to obtained controlled optimal operation of unified power flow controller. In practice, it is necessary to operated power system in certain control modes i.e. active, reactive power flow requirements, voltage magnitude requirements or both. In this, the device is modeled using power injection model and respective incorporation procedure to get an effect of this device on system performance. For this, the necessary modifications in Jacobian terms, power mismatches, etc are presented with supporting mathematical interpretations. The optimal operation is obtained using UDTPSO algorithm in order to minimize generation fuel objective while satisfying system equality and inequality constraints. The effect of control modes is analyzed with supporting numerical and graphical results.