MPC-Controlled Virtual Synchronous Generator to Enhance Frequency and Voltage Dynamic Performance in Islanded Microgrids

The use of high penetration converter-interfaced renewable energy (RE) based microgrids (MGs), due to the absence rotational masses from conventional synchronous generators (SGs), may lead a lack inertia, which steeper frequency and voltage fluctuations that in turn cause instability issues challenges normal operation sensitive loads. To suppress these enhance MGs stability, novel model predictive control (MPC)-controlled virtual generator (VSG) for an storage system (ESS) is introduced. proposed method can provide inertia support during transient states dynamic characteristics frequency. By establishing prediction VSG designing cost function power, increments needed active reactive power are calculated then superposed on reference VSG. results show suppression performance variations under loading transition with better than those other techniques. Simulation hardware-in-the-loop (HIL) further demonstrate effectiveness method.