Abstract
This paper presents detailed implementation of static synchronous compensator (STATCOM) based on model predictive control (MPC) for mitigating unbalance in line voltages. The main objective is to evaluate the capability of an enhanced MPC state-space model that can be applied in a general form for any power system. The proposed enhanced MPC state-space model presented in this paper is adapted for mitigating unbalanced voltages at nominated buses by injecting suitable unbalanced currents and reactive powers by STATCOM. In addition, a proposed MPC objective function is developed and implemented to predict STATCOM injected output current according to line voltages of adjacent buses. This enables expecting the fluctuations from any part in the network to maintain nominated bus voltage at reference value. The results of MPC technique are compared with the same MPC technique developed for balanced line voltage mode.
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