Electric Vehicle: Components, Charging Infrastructure and Grid Integration Solutions | Effect of EV Charging Stations on Grid – I | Grid Impacts, Hosting Capacity & Reliability | Lecture 41

This lecture focuses on the impact of EV charging stations on the electrical grid, covering the effects of uncontrolled and controlled charging on power demand, voltage, transformers, feeders, and overall grid operation.
The lecture discusses peak demand, load growth, transformer and feeder thermal stress, forecasting challenges, hosting capacity, and the interaction between EV charging and renewable energy sources such as PV. The potential of smart charging for mitigating grid impacts is also highlighted.
The lecture further examines the impact of EV charging on grid reliability (SAIDI/SAIFI) and the need for grid reinforcement and upgrades, including transformer capacity enhancement, feeder reconductoring, voltage regulation, and protection-system modifications.

Topics Covered

EV Charging and Grid Interaction
Uncontrolled and Controlled EV Charging
Increase in Energy and Peak Demand
Load Growth and Peak Demand Shift
Transformer and Feeder Thermal Stress
Harmonics and Distribution Losses
EV Charging Load Forecasting
Load Uncertainty and AI/ML-Based Forecasting
EV Hosting Capacity
Voltage and Thermal Constraints
EV Charging and PV/DER Interaction
PV–EV Load Mismatch
Grid Reliability and SAIDI/SAIFI
Transformer and Feeder Upgrades
Voltage Regulators and OLTC
Protection System Modifications
Grid Reinforcement Requirements
Smart Charging for Grid Impact Mitigation

Who Should Watch?

B.Tech. and M.Tech. students
Electric Vehicle learners
Power Systems and Power Electronics students
Smart Grid and Renewable Energy enthusiasts
GATE and ESE aspirants
Researchers and engineers working on EV charging and grid integration

Recommended References

IEC 61851 – Electric Vehicle Conductive Charging System.

NITI Aayog & BEE, Handbook for EV Charging Infrastructure Implementation, 2023.

CEA Guidelines for Electric Vehicle Charging Infrastructure.

IEEE publications on EV charging, distribution-network impacts, and grid integration.

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