The reliability of the microgrid supply is often relying on the energy storage mediums used. Hydrogen is considered as a long-term energy storage solution whereas battery provides the energy for short-term. Fuel cell converts the stored hydrogen energy into electricity. As these storage mediums have low inertia in the system, there can be excessive current stress on the devices, leading to degradation. Virtual inertia can improve the behavior of the devices during load variation. These storage devices can be modeled as virtual machines, and these virtual inertia-based devices can provide a delayed response to the load variation. Therefore, the life of the storage mediums can be improved. In this paper, a DC microgrid system has been studied, having the photovoltaic power generator, battery, supercapacitor, and fuel cell as the other power sources. The photovoltaic generator works in MPPT mode and generates electricity to meet the load demand. The virtual inertia-based control embedded
The Global DC-DC Converter Market Size was valued at USD 11.28 billion in 2022 and the Worldwide DC-DC Converter Market is expected to reach USD 29.86.
This paper proposes a method for battery storage and supercapacitor (SC) hybrid operation toward improving EVs' performance. The adopted concept is established to regulate the level of charge for the SC to suit the immediate storage needs of the EV in such a way as to couple both storage devices. The results demonstrate that the current drawn from the battery has significantly reduced the discharging rate of the battery smoothed out compared to the EV without the SC. Also, the electric vehicle (EV) battery capacity is improved and the implementation of an SC eliminates the abrupt discharge of state of charge (SoC). The SC supports the EV by providing the necessary power when required. The simulation results demonstrate the contribution of SC to improving the battery performance and the reduction in discharging rate. The battery cannot be disconnected, while the SC could be, and power can be exchanged via supercapacitor. The SC is faster than the battery to maintain the optimum SoC