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Grid-connected inverter control system

A control system and inverter technology, applied in the direction of converting irreversible DC power input into AC power output, single-network parallel feeding arrangement, output power conversion device, etc. Problems such as output frequency and inability to use reference frequency, etc., achieve the best energy utilization rate, realize energy utilization rate, and highlight the effect of substantive features

Inactive Publication Date: 2019-12-31
国网山东省电力公司昌邑市供电公司 +2
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  • Summary
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

General grid-connected inverters are often controlled by analog and digital circuits or special ICs, and their functions are relatively single; they cannot realize maximum power tracking, and realize manual adjustment buttons to a

Method used

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  • Grid-connected inverter control system
  • Grid-connected inverter control system
  • Grid-connected inverter control system

Examples

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Embodiment Construction

[0022] Specific embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0023] like figure 1 The grid-connected inverter control system shown includes: DC input module, MPPT module, control module, DC / AC converter, IR2110 drive circuit, LC filter module, isolation transformer module, current detection module, load, input module and display module;

[0024] The DC input module is connected to the input end of the DC / AC converter, the output end of the DC / AC converter is connected to the input end of the isolation transformer module through the LC filter module, and the output end of the isolation transformer module is connected to the load.

[0025] The control module is respectively connected with the MPPT module, the current detection module, the input module and the display module, the control module is connected with the control terminal of the DC / AC converter through the IR2110 drive circuit, and the SPWM waveform outp...

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Abstract

The invention provides a grid-connected inverter control system, which comprises a direct current input module, an MPPT module, a control module, a DC/AC converter, an LC filtering module, an isolation transformation module, a current detection module and a load. The DC input module is connected with the input end of the DC/AC converter; the output end of the DC/AC converter is connected with theinput end of the isolation transformation module through the LC filtering module; the output end of the isolation transformation module is connected with the load; the control module is connected withthe MPPT module, the control end of the DC/AC converter and the current detection module; and the MPPT module is connected with the signal end of the DC input module.

Description

technical field [0001] The invention relates to the technical field of inverter control, and more specifically relates to a grid-connected inverter control system. Background technique [0002] With the rapid development of all walks of life in today's world, fossil energy is left to predatory and crazy use. There is a limit to fossil energy, so crazy mining will eventually be exhausted one day. In addition, the burning of fossil fuels will continue to bring serious problems such as unimaginable ecological environment, which greatly restricts the survival and development of human beings. Under such circumstances, sustainable renewable solar energy naturally attracts people's attention. Today, countries around the world are competing to develop green and renewable energy, solar energy has been unanimously favored for its unique advantages, and among various applications of solar energy, the application has attracted much attention. With the continuous reduction of component...

Claims

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Application Information

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IPC IPC(8): H02M7/48H02J3/38
CPCH02M7/48H02M1/0012
Inventor 张琪李焕超韩萌萌李周鹏韩伟徐广伟彭雪占刘华建李玉国王冰齐凯奇姜文龙张鲁李宏龙王勇
Owner 国网山东省电力公司昌邑市供电公司
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