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Photovoltaic grid-connected inverter

A technology of inverter and photovoltaic, applied in the field of inverter

Pending Publication Date: 2019-12-27
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 photovoltaic grid-connected inverter provided by the invention is good in use effect. The inverter comprises a CPU circuit, a power part, a driving circuit, a main circuit, a photovoltaic current and current direction acquisition part, a storage battery voltage acquisition part connected to the input end of the main circuit, a commercial power current acquisition part, a commercial power voltage acquisition part and a commercial power phase discrimination circuit;the inverter is characterized in that an electric energy output port of the power part is connected with an electric energy input port of the CPU circuit, an electric energy input port of the drivingcircuit, an electric energy input port of the photovoltaic current and current direction acquisition part, an electric energy input port of the storage battery voltage acquisition part and an electricenergy input port of the commercial power current acquisition part.

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): H02M7/5387
CPCH02M7/5387Y02E10/56
Inventor 赵音鞠振河王志喜田巍乌热
Owner 辽宁太阳能研究应用有限公司