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A photovoltaic combiner box corrosion alarm system

A technology of photovoltaic combiner box and alarm system, which is applied in the direction of using sonic/ultrasonic/infrasonic waves to analyze solids, can solve problems such as corrosion of photovoltaic combiner boxes, and achieve the effects of improving power generation efficiency, increasing efficiency, and reducing the incidence of failures

Active Publication Date: 2017-12-08
NANJING INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the photovoltaic smart combiner boxes on the market mainly have the functions of monitoring voltage, photovoltaic branch current and the ambient temperature inside the box. However, in actual operation, the photovoltaic combiner box will rust

Method used

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  • A photovoltaic combiner box corrosion alarm system
  • A photovoltaic combiner box corrosion alarm system

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Experimental program
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Effect test

Embodiment 1

[0017] The acceleration sensor MMA7361L is selected as the vibration measurement sensor 1, the impact electromagnet is used as the vibration exciter 3, and the STC12C5A60S2 is used as the data acquisition unit 2 and the data processing unit 5. The exciter drive unit 4 can be composed of a triode S8050, a relay SRD-05VDC-SL-C and a diode, wherein the I / O port of STC12C5A60S2 drives the S8050 to work, thereby driving the relay SRD-05VDC-SL-C to work, and the normally open of the relay Connected with the impact electromagnet, when the relay works, the impact electromagnet also works and completes the excitation of the box. After the excitation is completed, the data of MMA7361L can be collected through STC12C5A60S2, and the collected information can be processed, and the corrosion alarm can be judged according to the processing result, and finally the corrosion alarm information can be transmitted to the host computer through the serial port. The information processing method her...

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Abstract

The invention discloses a photovoltaic combiner box corrosion alarm system, which includes a vibrator, a vibrator drive unit, a vibration measurement sensor, a data acquisition unit, a data processing unit and a communication interface. The vibrator and the vibrator The vibration measuring sensor is connected with the data acquisition unit, and the data processing unit is respectively connected with the exciter drive unit, the data acquisition unit and the communication interface. The invention can effectively provide rust alarm information to the staff in the monitoring room of the photovoltaic power station. This system can help inspectors to find out the corroded combiner box among many combiner boxes, increase the efficiency of manual inspection, help the personnel in the monitoring room to find the corroded box in time and maintain it, and reduce the damage caused by the corrosion of the box. It is suitable for photovoltaic combiner boxes with metal shells to improve the power generation efficiency of the power station.

Description

technical field [0001] The invention relates to a photovoltaic combiner box fault alarm system, in particular to a photovoltaic combiner box corrosion alarm system. Background technique [0002] The photovoltaic combiner box is an important component widely used in photovoltaic power plants. Its most basic function is to combine multiple photovoltaic branches into two and then output them to subsequent lines. A general photovoltaic combiner box consists of a box body, positive and negative DC bus bars, DC fuses, DC circuit breakers, anti-reverse diodes and lightning arresters. With the development of photovoltaic combiner boxes, photovoltaic smart combiner boxes have appeared. The photovoltaic smart combiner boxes are based on ordinary photovoltaic combiner boxes with monitoring and communication modules. In addition to all the functions of ordinary photovoltaic combiner boxes, photovoltaic smart combiner boxes also have It has the ability of monitoring, fault alarm and rem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N29/04
Inventor 沈卫康业睿
Owner NANJING INST OF TECH