Energy Conversion System based on Photovoltaic-Battery-Ultra Capacitor-Diesel Sources for a Mobile Hospital

Abstract

This article deals with the energy management of a hybrid system composed of PV, Battery,ultracapacitor and diesel synchronous generators for a mobile hospital. The proposed power system can supply energy to Shelter Hospital for better treatment of patients in remote states, particularly in the event of a pandemic situation such as COVID-19. For this reason, a hybrid power system in which a diesel generator is used with a photovoltaic energy source for reliable availability of power supply. Moreover, batteries and ultra-capacitors are also integrated to obtain a hybrid power generation and storage system to ensure the smooth operation of mobile hospital weather conditions. Photovoltaic panels are connected to a boost converter to follow maximum power tracking (MPPT) and Power curtailment modes. The battery is connected to a bidirectional reversible DC-DC converter for DC bus voltage regulation and state of charge (SOC) control. The ultra-capacitor is associated with the battery to compensate for the peak power. The diesel generator is connected in parallel with the photovoltaic generator, battery, and ultra-capacitor to continuously provide the power required by the load. The integrated operation of all the generation and storage systems is complex for shelter hospital. Hence; an efficient energy management algorithm is developed to manage the continuous energy flow between the elements of the hybrid power system and mobile hospital load through the control of the power converters. Finally, validation results are presented to show the effectiveness of the proposed energy management of the hybrid power system.