Novel optical storage integrated direct current converter

A technology of DC converter and optical storage, which is applied in the direction of conversion of DC power input to DC power output, output power conversion devices, instruments, etc., can solve the problems of low power utilization rate, low energy utilization rate, high design, etc., to achieve Improve efficiency, avoid waste of materials and equipment, and expand the application range

Pending Publication Date: 2022-03-22
NINGDE POWER SUPPLY COMPANY STATE GRID FUJIAN ELECTRIC POWER +1
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  • Application Information

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Problems solved by technology

[0004] In order to overcome the shortcomings of the existing DC / DC converters such as waste of electric energy and low utilization rate of electric energy, the present invention designs a new type of integrated optical-storage DC converter. Coordinated work with photovoltaic cells and high output voltage gain, through the photovoltaic input unit and battery input unit to solve the problems of low energy utilization and high design of the traditional parallel structure, through the boost unit to achieve high input and output gain, reducing the main Voltage and Current Stress on Power Switch Tube

Method used

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  • Novel optical storage integrated direct current converter
  • Novel optical storage integrated direct current converter
  • Novel optical storage integrated direct current converter

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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0027] Such as Figure 1-3 As shown, the novel solar-storage integrated DC converter of this embodiment includes a photovoltaic panel U pv and load units, including photovoltaic input units, battery input units and boost units,

[0028] The photovoltaic input unit includes an inductor L1, a capacitor C1, a power switch S1, a power switch S2 and a diode D1, and the capacitor C1 is connected in parallel to the photovoltaic panel U pv Both ends, one end of the inductor L1 is connected to the photovoltaic panel U pv The positive end, the other end is connected to the anode end of the diode D1, the cathode end of the diode D1 is connected to the positive end of the power switch S2, one end of the power switch S1 is connected to the anode end of the diode D1, and the other end is ...

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Abstract

The invention relates to a novel optical storage integrated DC converter, and belongs to the technical field of DC/DC converters. Comprising a photovoltaic input unit, a storage battery input unit and a boosting unit, the photovoltaic input unit comprises an inductor L1, a capacitor C1, a power switch S1, a power switch S2 and a diode D1, the storage battery input unit comprises a storage battery Ubat, an inductor L2, a capacitor C2 and a power switch S3, and the boosting unit comprises an inductor L3, a capacitor C3, a capacitor C4, a diode D2 and a diode D3; the DC/DC converter solves the problems of electric energy waste, low electric energy utilization rate and the like of a DC/DC converter in the prior art.

Description

technical field [0001] The invention relates to a novel optical-storage integrated DC converter, which belongs to the technical field of DC / DC converters. Background technique [0002] In the traditional hybrid multi-port converter solution, the new energy micro power supply and energy storage unit are generally connected in parallel with the DC bus through their respective DC / DC converters, although this structure can solve the problem of energy storage unit balancing the power generation output of the micro power supply and improving the system performance. Power supply stability problem, but due to the parallel structure of DC / DC converter and DC bus bar, the energy storage system needs to perform two power conversions every time it charges and discharges electricity, resulting in problems such as waste of power energy and low utilization rate of power energy, and The parallel structure will also increase the system design cost and the complexity of the controller design....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H02J7/35H02M3/158H02M1/00H02S40/32H02S40/38
CPCH02J7/0042H02J7/0045H02J7/0068H02J7/35H02M3/158H02M1/00H02S40/32H02S40/38H02J2207/20Y02E10/56Y02E70/30
Inventor 郑传良伍仰金郭茜婷陈峥戴俊平叶家玮张晓瑀王超君林晨杰陈岳晟郑涛魏兰兰付馨慧张良涂承谦
Owner NINGDE POWER SUPPLY COMPANY STATE GRID FUJIAN ELECTRIC POWER
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