Using MPC to Balance Intermittent Wind and Solar Power with Hydro Power in Microgrids

In a microgrid connected with both intermittent and dispatchable sources, intermittency caused by sources such as solar wind power plants can be balanced dispatching hydro into the grid. Both generation consumption are stochastic in nature, not known perfectly, require future prediction. The will cause grid frequency to drift away from required range. To improve performance, operation should optimized over some horizon, added problem that varies randomly future. Optimal management of dynamic system horizon disturbances is often posed Model Predictive Control (MPC) problem. this paper, we have employed an MPC scheme for generating hydro-turbine valve signal necessary maintaining frequency. Parameter sensitivity analysis shows mostly sensitive turbine signal. We found controller discretization time, frequency, injection interrelated, play important role within thresholds. Results also indicate fluctuations insignificant on position during