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Vehicle-mounted power supply photovoltaic inverter

A technology of photovoltaic inverter and vehicle power supply, which is applied in photovoltaic power generation, electrical components, and conversion of AC power input to DC power output. Effect

Inactive Publication Date: 2015-12-09
SUZHOU BROADLINE POWER SUPPLY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The technical problem to be solved by the present invention is: to provide a vehicle-mounted power supply photovoltaic inverter, which solves the problem that the vehicle-mounted power supply switch fails and is easy to short circuit in the prior art

Method used

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  • Vehicle-mounted power supply photovoltaic inverter

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Embodiment Construction

[0025] Below in conjunction with accompanying drawing, structure and working process of the present invention will be further described.

[0026] Those skilled in the art can understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which this invention belongs. It should also be understood that terms such as those defined in commonly used dictionaries should be understood to have a meaning consistent with the meaning in the context of the prior art, and will not be interpreted in an idealized or overly formal sense unless defined as herein Explanation.

[0027] Such as figure 1 As shown, a vehicle-mounted power supply photovoltaic inverter includes first to fourth switching circuits S1 to S4, first to second filter inductors, an energy storage capacitor C1, first to second freewheeling circuits D5, D6, The first switch circuit and the...

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Abstract

The invention discloses a vehicle-mounted power supply photovoltaic inverter which comprises a first switching circuit, a second switching circuit, a third switching circuit, a fourth switching circuit, a first filter inductor, a second filter inductor, an energy storage capacitor, a first follow-current circuit and a second follow-current circuit, wherein the input end of the first follow-current circuit is in circuit connection with the second switching circuit to form a node E, the output end of the first follow-current circuit is in circuit connection with the first switching circuit to form a node C, the input end of the second follow-current circuit is in circuit connection with the fourth switching circuit to form a node F, the output end of the second follow-current circuit is in circuit connection with the third switching circuit to form a node D, the filter inductor comprises a first winding and a second winding, the second inductor comprises a third winding and a fourth winding, one end of the first winding is connected with the node C, the other end of the first winding is connected with one end of the second winding and the node F respectively, one end of the fourth winding is connected with the node D, and the other end of the fourth winding is connected with one end of the third winding and the node E. With the adoption of the coupling inductors, ripple can be effectively suppressed, the impact of the device damage to the circuit is reduced, and short circuit is avoided.

Description

technical field [0001] The invention relates to a vehicle-mounted power supply photovoltaic inverter, which belongs to a direct current / alternating current (DC / AC) electric energy conversion device. Background technique [0002] Inverters are widely used in motor drives, uninterruptible power supplies, induction heating, static var generators and compensators, and active filtering. Traditional inverter circuit topologies include voltage source inverters and current source inverters. [0003] The output AC voltage of the voltage source inverter is lower than the DC bus voltage, so the voltage source inverter is essentially a step-down inverter. In order to realize the function of step-up conversion, an additional step-up conversion circuit needs to be added. The overall structure of the converter is complicated. [0004] The current source inverter is essentially a step-up inverter. In order to realize the function of step-down conversion, an additional level of step-down c...

Claims

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Application Information

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IPC IPC(8): H02M7/537
CPCY02E10/56
Inventor 王占伟李光明
Owner SUZHOU BROADLINE POWER SUPPLY TECH
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