Abstract
DC-DC converters are being used for power management and battery charging in electric vehicles (EVs). To further the role of EVs in the market, more efficient power electronic converters are needed. Wide band gap (WBG) devices such as silicon carbide (SiC) provide higher frequency and lower power loss, however, their high di/dt and dv/dt transients result in higher electromagnetic interference (EMI). On the other hand, some gate driver parameters such as gate resistor ( R G ) have a contradictory effect on efficiency ( η ) and EMI. The idea of this paper is to investigate the values of these parameters using a multi-objective optimization method to optimize η and EMI at the same time. To this aim, first, the effect of high and low side R G on η and EMI in the half-bridge configuration is studied. Then, the objective functions of the optimization problem are obtained using a numerical regression method on the basis of the experimental tests. Then, the values of the gate resistors are obtained by solving the multi-objective optimization problem. Finally, η and EMI of the converter in the optimum gate resistor design are compared to those in the conventional design to validate the effectiveness of the proposed design approach.
Highlights
One of the causes of global warming and air pollution is the gas propulsion in conventional vehicles (CVs)
The AC-DC-DC battery chargers, the DC-DC bidirectional converters for the power management, and the DC-AC traction inverters, which are being used in the Plug-in hybrid electric vehicles (PHEVs) [7,8], benefit from the high efficiency and the high frequency capability of the new wide band gap (WBG) devices such as silicon carbide (SiC) [9,10]
The 25 experiments are performed for different values of the gate resistors to obtain the input–output pairs of the system
Summary
One of the causes of global warming and air pollution is the gas propulsion in conventional vehicles (CVs). Plug-in hybrid electric vehicles (PHEVs), for instance, are under development to be superseded in the market eventually [2]. Besides the energy storage systems, such as the batteries, the ultra-capacitors, and the fuel cells, which are an important field of research to advance the PHEVs [3], the efficient compact converters are absolutely essential to push the PHEVs forward [4,5,6]. The AC-DC-DC battery chargers, the DC-DC bidirectional converters for the power management, and the DC-AC traction inverters, which are being used in the PHEVs [7,8], benefit from the high efficiency and the high frequency capability of the new wide band gap (WBG) devices such as silicon carbide (SiC) [9,10]. In [11,12,13,14], some SiC-based converters in automotive applications are discussed and their superiority over Silicon (Si) devices has been presented
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
