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Photovoltaic grid-connected inverter

An inverter, photovoltaic technology, applied in the direction of photovoltaic power generation, irreversible DC power input conversion to AC power output, single-grid parallel feeding arrangement, etc.

Pending Publication Date: 2019-12-20
辽宁太阳能研究应用有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use effect of the existing inverter device needs to be further improved

Method used

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  • Photovoltaic grid-connected inverter
  • Photovoltaic grid-connected inverter
  • Photovoltaic grid-connected inverter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0137] As shown in the figure, the present invention includes a CPU circuit, a power supply part, a drive circuit, a main circuit, a photovoltaic current and current direction acquisition part, a battery voltage acquisition part connected to the input end of the main circuit, a mains current acquisition part, and a mains voltage acquisition part And the mains phase detection circuit, the power output port of the power supply part is respectively connected with the power input port of the CPU circuit, the power input port of the drive circuit, the power input port of the photovoltaic current and current direction collection part, the power input port of the battery voltage collection part, The electric energy input port of the mains current collection part is connected, and the detection signal input port of the CPU circuit is respectively connected with the detection signal output port of the photovoltaic current and current direction collection part, the detection signal output...

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Abstract

The invention belongs to the technical field of inverters and particularly relates to a photovoltaic grid-connected inverter. The invention provides a photovoltaic grid-connected inverter with a gooduse effect. The photovoltaic grid-connected inverter includes a CPU circuit, a power supply portion, a driving circuit, a main circuit, a photovoltaic current and current direction acquisition portion, a battery voltage acquisition portion connected to the input end of the main circuit, a mains current acquisition portion, a mains voltage acquisition portion, and a mains phase detector, and is characterized in that the power output port of the power supply portion is connected with the power input port of the CPU circuit, the power input port of the driving circuit, the power input port of thephotovoltaic current and current direction acquisition portion, the power input port of the battery voltage acquisition portion, and the power input port of the mains current acquisition portion.

Description

technical field [0001] The invention belongs to the technical field of inverters, in particular to a photovoltaic grid-connected inverter. Background technique [0002] A device with an inverter function is required to transmit the low voltage and direct current of the photovoltaic power generation system to the distribution line of the high voltage level. The use effect of the existing inverter device still needs to be further improved. Contents of the invention [0003] The present invention aims at the above problems, and provides a photovoltaic grid-connected inverter with good application effect. [0004] In order to achieve the above object, the present invention adopts the following technical solutions, the present invention includes a CPU circuit, a power supply part, a drive circuit, a main circuit, a photovoltaic current and a current direction acquisition part, a storage battery voltage acquisition part connected to the main circuit input end, and a mains curre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/48H02J3/38
CPCH02M7/48Y02E10/56
Inventor 赵音李潇潇张帅侯占武马君功李雪
Owner 辽宁太阳能研究应用有限公司