Analysis and Control of Double-Input Integrated Buck-Buck-Boost Converter for Hybrid Electric Vehicles
The energy storage unit is one of the most important aspects in structure of hybrid electrical vehicles, since it directly impacts the performance, fuel economy, cost, and weight of the vehicle. In order to fully utilize the advantages of each energy storage device, employment of multi-input power converters is inevitable. In this paper analysis and control of Double Input Integrated Buck-Buck-Boost Converter (DIIBBBC) is presented and operating modes are analyzed. In order to have simple control strategy as well as simpler compensator design a single loop control scheme, voltage-mode and current-limit control, are proposed here for the power distribution.