Abstract
The soft-switching technology is widely used in DC-DC converters, DC-AC inverters, and AC-DC rectifiers. Soft-switching non-isolated DC/DC converters (Buck, Boost, and Buck-Boost) are the most active research area of the soft-switching technology, and fruitful results are achieved. However, there is currently no comprehensive review for the soft-switching technology of non-isolated DC/DC converters. This paper introduces soft-switching topologies for non-isolated DC/DC converters, and presents classification and characteristic of all kinds of soft-switching technologies. Some soft-switching technologies of derivative converters (non-inverting Buck-Boost converters and multiphase converters) are also presented. Finally future trends and generalized constitution methods of the soft-switching topology for non-isolated DC/DC converters are concluded. The soft-switching theory and constitution methods summarized in this article are expected to be able to guide the proposing of new soft-switching technologies for DC-DC converters.
Highlights
Benefit from the simple structure, non-isolated DC-DC converters are widely used in renewable energy applications, which need not an electrical isolation, such as the hybrid energy storage system (HESS), electric vehicles (EV) and the photovoltaic power generation
The switching frequency is required to be high to reduce the volume and mass of the non-isolated DC-DC converter prototype, the voltage and current will be very large in these applications
We mainly concerned with the latest technological developments, converters proposed in recent years will be given descriptions in detail
Summary
Benefit from the simple structure, non-isolated DC-DC converters are widely used in renewable energy applications, which need not an electrical isolation, such as the hybrid energy storage system (HESS), electric vehicles (EV) and the photovoltaic power generation. The switching frequency is required to be high to reduce the volume and mass of the non-isolated DC-DC converter prototype, the voltage and current will be very large in these applications These factors will cause severe switching losses in switching devices (power transistors and power diodes). (2) Based on the state-of-the-art review, several generalized soft-switching topology derived methods are summarized and presented for non-isolated DC/DC converters. (3) Based on the soft-switching theory and constitution methods summarized in this article, considering the industrial practice, future development trends and areas of softswitching technologies is discussed.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
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
