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Advanced EV Charging Schedules Can Enhance Grid Efficiency

In response to the escalating demand for sustainable transportation solutions, researchers from the National Institute of Technology Silchar have developed a scheduling system for electric vehicles (EVs) that enhances power grid efficiency and accommodates the growing influx of solar energy. This advanced system, outlined in a recent study by Pritam Das and Partha Kayal, focuses on optimizing the charging and discharging times of EVs to better integrate with photovoltaic (PV) energy sources.

Revolutionizing urban energy: how advanced EV charging schedules enhance grid efficiency

The study is published in the journal Green Energy and Intelligent Transportation.

The innovative approach involves a two-stage algorithm that not only schedules EV charging sessions but also strategically manages the distribution of these sessions across various charging stations. This method aims to reduce energy loss, prevent power outages, and minimize the impact of EV charging on the power grid.

The first stage of the algorithm identifies the optimal times for EVs to charge or discharge based on the availability of solar energy, which is predicted using a cutting-edge hybrid SARIMA-LSTM model. This model accurately forecasts solar power availability, ensuring that EV charging demands coincide with peak solar energy production times. The synchronization of EV charging with solar energy peaks allows for a more efficient use of renewable resources, reducing reliance on non-renewable power sources.

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In the second stage, the scheduling system allocates specific charging slots to different stations in a manner that balances the load on the electrical grid. By distributing the charging demand more evenly, the system helps maintain grid stability and prevents the typical peaks and troughs associated with unmanaged EV charging.

The benefits of this innovative scheduling system were demonstrated through extensive simulations on a 28-bus Indian power distribution network enhanced with solar energy. The results showed a significant improvement in the grid’s peak-to-average load ratio, a key indicator of power grid efficiency. Additionally, the system’s ability to reduce total energy consumption and enhance voltage stability was clearly evidenced in various test scenarios.

This breakthrough represents a major step forward in the integration of renewable energy and electric vehicles into urban infrastructure. By optimizing the timing and distribution of EV charging, the system not only supports the expansion of electric vehicle usage but also contributes to the overall sustainability of urban transportation.

As cities around the world continue to grow and seek environmentally friendly solutions to transportation and energy challenges, the adoption of such intelligent scheduling systems could play a crucial role in shaping a more sustainable and efficient future. The study’s findings offer valuable insights for policymakers, utility companies, and consumers looking to navigate the complexities of energy management in increasingly congested urban environments.

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Source: Techxplore

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