Review of electric vehicle (EV) charging using renewable solar photovoltaic (PV) nano grid

This review article gives a comprehensive review of existing research on renewable solar photovoltaic (PV) nanogrid, which is described from small-scale power system with a single domain for reliability, control, and power quality (PQ) for electric vehicle (EV) charging. A primary feeder on the Microgrid is connected to a nanogrid test bed that includes PV as power source, a battery energy storage system (BESS), smart-inverter multiple and EV charging stations (EVCS). The control algorithms are graded on four metrics: (1) voltage profiles, (2) renewable penetration, (3) PV curtailed and (4) net power flows. To investigate the local power quality, a steady-state power flow model of the nano-grid is created. The control algorithms successfully employ the battery to shift the nano-grid peak load while limiting the nano-grid demand to set level. Furthermore, an increasing emphasis is being placed on commonly used strategies for addressing the characteristics of each renewable system. This review paper characterizes the dynamic operation of 4 distinct BESS control algorithms for solar EV charging nanogrid: (1) peak load shifting, (2) reduce peak period impact, (3) cap demand, and (4) photovoltaic capture. These control modes are executed and analyzed on real-world nano-grid site, and optimal BESS control modes are assessed in terms of (1) solar electric vehicle charging, (2) power quality, (3) grid net demand, (4) photovoltaic curtailment, and (5) solar penetration. Finally, the problems highlight research gaps, and discussions on future trends are critical for enhancing the general technology of the renewable solar photovoltaic nano-grid for EV charging.

Automated summary

This review article provides a comprehensive overview of research on renewable solar photovoltaic (PV) nanogrids for electric vehicle (EV) charging. The article describes the characteristics of small-scale power systems that incorporate reliability, control, and power quality (PQ) and includes PV as the power source, battery energy storage systems (BESS), smart inverters, and EV charging stations. The article evaluates control algorithms based on metrics such as voltage profiles, renewable penetration, PV curtailment, and net power flows. It also discusses the dynamic operation of four different BESS control algorithms for solar EV charging nanogrids and highlights the importance of addressing research gaps and future trends in this field.