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Photovoltaic inverter

A photovoltaic inverter and filter technology, applied in the field of circuit devices or systems, can solve problems such as low reliability, low conversion efficiency, and unstable operation, and achieve the effect of high reliability and high efficiency

Inactive Publication Date: 2016-02-10
史树元
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There are still some problems in the use of inverters in the process of photovoltaic power generation; such as: low conversion efficiency, low reliability, unstable operation, etc.

Method used

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  • Photovoltaic inverter

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Embodiment Construction

[0011] As shown in the figure, the present invention includes an exciter, a voltage stabilizer, an amplifier module, an excitation module, a filter, a trigger, a central controller, a digital signal controller and a control module, and is characterized in that: the central controller and the trigger, The amplifier module, the digital signal controller and the control module are connected, the amplifier module is connected with the voltage stabilizer, the filter and the excitation module, the voltage stabilizer is connected with the exciter, and the filter is connected with the trigger.

[0012] The central controller adopts AT89C51 single-chip microcomputer.

[0013] After the filter is connected with the trigger, it is connected with the central controller.

[0014] Since the flyback high-frequency transformer inevitably has leakage inductance during the winding process, its energy cannot be coupled to the secondary side and transmitted to the load when the flyback circuit is...

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PUM

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Abstract

The invention provides a photovoltaic inverter which belongs to power supply or power distribution circuit devices or systems, provides a power storage system, and particularly relates to the structure improvement of an alternating current mains or alternating current distribution network circuit device. The photovoltaic inverter provided by the invention has the advantages of high conversion efficiency, high reliability and stable operation. The photovoltaic inverter provided by the invention comprises an exciter, a voltage regulator, an amplifier module, an excitation module, a filter, a trigger, a central controller, a digital signal controller and a regulation module. The photovoltaic inverter is characterized in that the central controller is connected with the trigger, the amplifier module, the digital signal controller and the regulation module; the amplifier module is connected with the voltage regulator, the filter and the excitation module; the voltage regulator is connected with the exciter; and the filter is connected with the trigger.

Description

technical field [0001] The invention belongs to a circuit device or system for power supply or distribution; an electric energy storage system, and in particular relates to an improvement of a circuit device structure of an AC main line or an AC power distribution network. Background technique [0002] With the continuous development of industrial civilization, our demand for energy is increasing. It is impossible for traditional fossil energy to meet the requirements, and the search for high-quality alternative energy has become a hot issue of concern. The application of photovoltaic power generation system can be divided into the following two categories: independent off-grid photovoltaic power generation system and grid-connected photovoltaic power generation system. The former is not connected to the public grid, and the battery is charged through the output inverter controller or the output electric energy is directly supplied to the user load. Its common application ...

Claims

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Application Information

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IPC IPC(8): H02M7/42H02S40/30
CPCY02E10/56
Inventor 史树元
Owner 史树元
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