In addition, the system is also investigated for the influence of digital control delay. The system is analysed for grid inductance and LCL filter parametric variations in order to assure the robustness and stability of the system. A comparative assessment is performed between the conventional technique and the proposed methodology.
As an outcome, the hardware complexity, weight, size, and implementation cost of the system are downsized. The sensing point is implemented by the proposed estimation algorithm. Only two inverter‐side current sensors are required for the same. This work proposes a novel cascaded control scheme that allows a considerable reduction of grid‐side current sensors and capacitor‐side voltage sensors. The conventional three‐loop control requires two current sensors for the inverter side, two voltage sensors for the voltage side, and two current sensors for the grid side in total for sensing. This work implements a cascaded control for the LCL filter‐based grid‐connected neutral point clamped (NPC) inverter with the reduced sensor. Lastly, this work explores challenges and emerging trends in LEV charging, which can potentially be explored by researchers in the future. This review explores recent LEV charger DC-DC converters in literature by segregating them into isolated and non-isolated topologies. Hence, this paper aims to chronicle recent research developments on LEV charging techniques, by placing special attention on DC-DC converter topologies used in both on-board and off-board chargers. Consequently, the subject of LEV charging has gained considerable traction, and numerous research works have been reported on this subject in recent years. To realise widespread adoption of LEVs for this purpose, it is imperative to make their charging systems more robust. In this regard, one category of EVs that requires special attention is light electric vehicle (LEV), mainly because of their wide potential in public transportation-especially in developing countries. To counteract this, one solution is the adoption of electric vehicles (EV) for transportation requirements. Rising greenhouse gas emissions stemming from fossil fuel-driven vehicles are causing damage to the environment.
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