Abstract
Simulation and modeling of standalone DC linked hydro/PV/battery hybrid energy system (HES) and power management strategy (PMS) for identifying the active power sharing have been done. The performance analysis of the proposed HES and its power management strategy has been done using the simulink toolboxes of MATLAB software. The proposed system consists of 10 kW PV system, 7.5 kW hydro system, battery, and power condition unit. In some remote/rural areas, it is very difficult to satisfy the demand of electrical power throughout the year with the power grid. In such areas, the power requirement can be fulfilled by renewable energy system such as hydro or PV system. Either the hydro system or PV system is not capable of supplying power requirement throughout the year as both systems are intermittent. Hence, the judicious combination of hydro and PV system has been modeled for electrification. The power management strategy is modeled to manage the power flow of the energy systems and battery to fulfill the load demand. The presented results clearly show that the proposed HES and its control strategy are suitable for implementation in remote/rural areas.
Highlights
Electrification of remote/isolated areas may be possible by harnessing the renewable energy sources presented in the particular areas
The proposed hybrid energy system and its control strategy are developed and simulated in MATLAB software and the behavior of the system is observed under different operating conditions
The stored water drives the prime mover of the self-excited induction generator (SEIG) with constant speed to generate the 7.5 kW power
Summary
Electrification of remote/isolated areas (where grid accessibility is not possible) may be possible by harnessing the renewable energy sources presented in the particular areas. The additions of diesel generator are advantageous over the pure renewable energy system and have some major problems such as diesel generator needs fossil fuel and surplus energy during the good season cannot be stored and provides short-term storage [8] To overcome these problems, recently, the hydrogen storage system is taking the place of diesel generator and such power generating systems have been designed and developed for rural and coastal residential applications. A hydro/PV/battery-based hybrid energy system (HES) is proposed for electrification of remote/rural areas. DC/DC converters are used in the HES system to link the common DC voltage of the renewable systems
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