High Gain DC-DC Converter Based Hybrid Electric Vehicle (HEV) With Robust Integral Backstepping Control

Abstract: High-gain, low voltage stress, small size, and high efficiency should be the defining characteristics of the DC-DC converter used in hybrid electric vehicles (HEV). This work suggests a new non-isolated DC-DC converter that uses switched capacitors and switched inductors to achieve high gain, a wide input voltage range, low voltage stresses across components, and a common ground topology. The electric vehicle using this converter under consideration employs a brand-new control method termed integral backstepping. The principle of the backstepping methodology described here is to decompose the system design problem into a series of lower order system subproblems, and then iteratively use the states discovered in the subproblems as virtual controls to derive the control law for the system.

Keywords: Electric Vehicle, Integral backstepping.