Variable Multiple Interleaved Bi-Directional DC/DC Converter with Current Ripple Optimization

Dsp Based Bi-directional Interleaved Dc-dc Converter for Energy Storage Application

The central part of an energy storage system is the DC-DC converter which connects the ultracapacitor pack or the battery pack and a DC bus of an energy system. In this paper the bi-directional converter which operates in discontinuous conduction mode is designed in order to reduce the costs and remove the current control loop in each phase. High current ripples associated with this mode operat...

Step up dcdc converter pdf

Modified Bi-directional AC/DC Power Converter with Power Factor Correction

Most existing power  converters and industrial motor drive systems draw non-sinusoidal currents from the supply. Non-sinusoidal currents contained harm harmonics disturb the power supply which it causes serious concern for reliability. Other equipments that use the same power supply are adversely affected. This paper suggests the operation and performance of a new modified AC/DC converter that ...

Development of Compact Variable- Voltage, Bi-directional 100kw Dc-dc Converter

This paper reports the status and recent progress in development of a 100kW variable bi-directional DC-DC converter with input voltage ranging from 200 to 300Vdc, output voltage ranging from 300 to 600Vdc, a total efficiency > 95%, a power density > 4kW/liter, and a specific power density > 4kW/kg with a high coolant temperature of > 90C. Multiple approaches are being studied to reduce power lo...

A Bi-Directional DC/DC Converter for Energy Storage Systems

This paper addresses a bi-directional dc/dc converter suitable for an energy storage system with an additional function of galvanic isolation. An energy storage device such as an electric double layer capacitor is directly connected to one of the dc buses of the dc/dc converter without any chopper circuit. Nevertheless, the dc/dc converter can continue operating when the voltage across the ener...