Diesel consumption in a high penetration remote hybrid power system with a pumped hydro and battery storage

In this research diesel consumption for three operational modes of a remote Hybrid Power System (HPS) is studied. The system consists of a 925kW diesel engine generator, a proposed pumped hydro storage system, battery bank and dump load. The proposed system is a replacement of the existing inefficient electrolyzer, hydrogen storage and generator system for Ramea Newfoundland. The hybrid system has been modeled with detailed customized function blocks in Simulink. Different modes of diesel engine generator have been studied here to estimate the fuel consumption, no of switching and system frequency deviation. The HPS dynamic model presented here is fast, accurate and includes dynamic and supervisory controllers. The proposed real time control algorithm observes the surplus/missing power in the grid and regulates all components to maintain high penetration of wind energy while maintaining a stable system frequency. This paper presents three different operational modes of diesel engine and HPS simulation results.