Dimensioning of Ultra-Compact and Efficiency Power Electronics Featuring Active Pulsating Power Buffer for On-board EV Chargers

Dimensioning of Ultra-Compact and Efficiency Power Electronics Featuring Active Pulsating Power Buffer for On-board EV Chargers

Feng, Shiyu (TU Delft Electrical Engineering, Mathematics and Computer Science)

Soeiro, Thiago B. (mentor)
Bauer, Pavol (graduation committee)
Stefanov, Alex (graduation committee)

Delft University of Technology

Electrical Engineering

2020-04-14

The Electric Vehicle (EV) charging market is very dynamic. The so-called AC-type chargers can be found confined within the vehicle or on-board. This must be able to withstand the harsh environment with an ambient temperature of above 75℃. Therefore, compact and high-efficiency power electronics and implementing electrolytic-less capacitors in the power range of 6 kW to 12 kW is desired. The operation of the grid-connected power stage with DC active power buffer has become standard in high compact systems. More importantly, this solution eliminates the requirement of high energy storage in the DC-link because the pulsating power is compensated leading to an electrolytic-less capacitor design. As the lifetime of the power converter in high-temperature environments is typically limited by the usage of the electrolytic capacitor technology, a more reliable system is finally obtained with the active pulsating power buffer.

Active Pulsating Power Buffer
On-board Charger
Active Power Decoupling

http://resolver.tudelft.nl/uuid:a919dd65-5b68-4eca-8cf9-9ec031fda1e5

Student theses

master thesis

© 2020 Shiyu Feng