Reduction of EMI emission from power converters using soft-switching technique

1996 ◽  
Author(s):  
H. Chung
Keyword(s):  
Power Converters ◽  
Soft Switching

scholarly journals A Review of High Efficiency Non-Isolated DC-DC Power Converters for Electric Vehicle Charging Application

2020 ◽  
Vol 6 (1) ◽  
pp. 60-74
Author(s):  
Ratil H Ashique
Keyword(s):  
Electric Vehicle ◽  
High Efficiency ◽  
Power Converters ◽  
Renewable Energy Sources ◽  
Pulse Frequency ◽  
Soft Switching ◽  
Electric Vehicle Charging ◽  
Dc Power ◽  
Vehicle Charging ◽  
Ev Charging

The electric vehicle (EV) charging systems employ dc-dc power converters as EV chargers. Currently, the expected high penetration of electric vehicle (EV) demands for the integration of the renewable energy sources (RES) into the electric vehicle charging system as a promising solution to cut down the load on the electrical grid. These systems interface with RES by implementing dc-dc power converters. Moreover, with the advent of high-power dc charging, the charging efficiency is largely dependent on the performance of the power converters. Hence, to improve the charging, the soft switching dc-dc converters are implemented to maintain low switching losses and to achieve high-efficiency operation. This paper reviews the non-isolated, soft switching dc-dc power converters for EV charging application. For this purpose, different types of soft switching topologies, namely the snubber, the series resonant, the shunt resonant and the pulse frequency modulated converters are investigated. The advantages and the disadvantages associated with these converters are highlighted. Furthermore, to perform a comparative evaluation, the topologies are simulated in a standard simulation platform. Consequently, the relative standing of the converters depending on several parameters, i.e. the component count, the output voltage and current ripple, the soft switching range, and the power losses are established. Finally, based on these results, the optimum applicability of the converters in the EV charging application is determined. GUB JOURNAL OF SCIENCE AND ENGINEERING, Vol 6(1), Dec 2019 P 60-74

Review of High Power DC/DC Soft-Switching Converters in Electrical Vehicles Application

2013 ◽  
Vol 321-324 ◽  
pp. 340-346
Author(s):  
Shuai Liu ◽  
Li Wei ◽  
Yi Cheng Zhang ◽  
Yong Tao Yao ◽  
Yun Xiong ◽  
...  
Keyword(s):  
Electric Vehicles ◽  
High Power ◽  
Power Converters ◽  
Power Level ◽  
The State ◽  
Soft Switching ◽  
Switching Converters ◽  
Switching Losses ◽  
Electrical Vehicles ◽  
State Of Art

The application of soft-switching techniques is an important way to reduce switching losses of DC/DC converter. Aiming at the requirement of electric vehicles application, major soft-switching techniques for DC/DC converters are reviewed. Performance and design limitations are discussed. A comparison of soft-switching techniques used in high power converters of electric vehicles is presented. Through analyzing the state-of-art and existing deficiency of soft-switching techniques for DC/DC converters, it is concluded that power level upgrading, soft-switching range extending and auxiliary network simplification should be focused in the future.

Sign in / Sign up

Export Citation Format

Share Document