摘要:
A multi-phase interleaved bidirectional DC-DC converter with a high voltage conversion ratio is provided. The multi-phase interleaved bidirectional DC-DC converter with a high voltage conversion ratio allows effective control of charge/discharge in multi-energy storage modules including a battery cell module or a super capacitor module, which is characterized in low voltage and high current output. Accordingly, a high-efficiency bidirectional DC-DC converter for use in battery charge/discharge can be implemented.
摘要:
Provided is technology for charge and discharge control of a plurality of energy storage modules having different properties. For achieving the technology, there is provided a multi-input bidirectional DC-DC converter including: a first bidirectional DC-DC converter including a first input unit which stores an input current from a first energy storage module, a primary-side first half-bridge which is connected to the first input unit and controls an input current from the first energy storage module, an output unit which includes an output capacitor, a secondary-side half-bridge which is connected to the output unit and controls the output voltage, and a first transformer whose primary side is connected to the primary-side first half-bridge, whose secondary side is connected to the secondary-side first half-bridge, and which transforms a voltage at the primary side or at the secondary side according to a power mode; and a n-th bidirectional DC-DC converter.
摘要:
A multi-input bidirectional DC-DC converter with a high voltage conversion ratio is provided. The multi-input bidirectional DC-DC converter with a high voltage conversion ratio implements phase control loops independent from one another so as to realize independent control of charge and discharge in a plurality of energy storage modules, and thus a failure in one of energy storage modules does not affect the other energy storage modules. In addition, it is possible to easily add or remove a control loop that is controlled independently from other control loops.
摘要:
Provided is power conversion technology for charge and discharge control of an energy storage module such as battery or super capacitor. For achieving the technology, there is provided a multi-phase interleaved bidirectional DC-DC converter including: a first bidirectional DC-DC converter including a input unit which includes a first input inductor and an energy storage module which stores input current from the energy storage module, a first primary-side half-bridge which is connected to the first input inductor of the input unit and controls the input current from the energy storage module, an output unit which includes an output capacitor, a first secondary-side half-bridge which is connected to the output unit and controls the output voltage, and a first transformer whose primary side is connected to the first primary-side half-bridge, whose secondary side is connected to the first secondary-side half-bridge, and which transforms a voltage at the primary side or at the secondary side according to a power mode; and a n-th bidirectional DC-DC converter, wherein the n-th bidirectional DC-DC converter is composed of one or more n-th bidirectional DC-DC converters.