EV Battery chargers — Lesson 1

This lesson covers the final chapter on electric vehicles (EVs), focusing on battery charging, swapping, and infrastructure management. It delves into the concept of EV chargers, their types, and their functions. The lesson also discusses the importance of standardization in EV charging and the role of on-board and public chargers. It further explains the concept of bulk charging, which is crucial for battery swapping, and briefly touches on the economics of public chargers. The lesson also provides an in-depth understanding of how chargers work, the importance of power factor correction, and the need for communication interfaces in chargers.

Video Highlights

00:17 - Introduction and outline
02:28 - What is EV charger?
05:25 - Charger architecture
10:14 - Charging process, including constant current and constant voltage charging
11:48 - Communication interfaces a charger should have, including communication with the vehicle and the grid

Key Takeaways

- EV chargers can be categorized as slow or fast chargers.
- Battery swapping is a viable option for India's EV infrastructure.
- Standardization in EV charging is crucial for compatibility and safety.
- On-board chargers are part of the vehicle, while public chargers are external.
- Bulk chargers are used for battery swapping.
- Chargers work by converting AC to DC power, with considerations for efficiency and power factor correction.
- Chargers should have communication interfaces for interaction with the vehicle and the grid.