logo

Standards Manage Your Business

We Manage Your Standards

SAE

SAE 2016-01-1219 : 2016

Design and Optimization of a 98%-Efficiency On-Board Level-2 Battery Charger Using E-Mode GaN HEMTs for Electric Vehicles

Standard Details

Most of the present EV on-board chargers utilize a three-stage design, e.g., AC/DC rectifier, DC to high-frequency AC inverter, and AC to DC rectifier, which limits the wall-to-battery efficiency to ∼94%. To further increase the efficiency and power density, a matrix converter is an excellent candidate directly converting grid AC to high-frequency AC thereby saves one stage. However, its control complexity and the high cost of building the back-to-back switches are barriers its acceptance. Instead, this paper adopts the 650V E-mode GaN HEMTs to build a level-2 on-board charger using the indirect matrix topology. The input voltage is 80∼260VAC, the battery voltage is 200∼500VDC and the rated power is 7.2kW. Variable switching frequency is combined with phase-shift control to realize the zero-voltage switching. To further increase the system efficiency, four GaN HEMTs are paralleled to form one switching module with a novel gate-drive technology. The overall system efficiency is ∼98% and the power density is 3.3kW/L.

Cross Reference:

General Information

Status : ACTIVE
Standard Type: Main
Document No: SAE 2016-01-1219 : 2016
Document Year: 2016

Life Cycle

Currently Viewing

ACTIVE
SAE 2016-01-1219 : 2016
Knowledge Corner

Expand Your Knowledge and Unlock Your Learning Potential - Your One-Stop Source for Information!

© Copyright 2024 BSB Edge Private Limited.

Enquire now +