A photovoltaic power station monitoring system, method and storage medium

A technology for monitoring systems and photovoltaic power plants, applied in the monitoring of photovoltaic systems, photovoltaic power generation, photovoltaic modules, etc., can solve problems such as mismatch between characteristics and the whole, battery mismatch, and damage to photovoltaic modules, so as to improve operational safety and early warning The effect of level improvement and precise positioning

Active Publication Date: 2021-10-08
ZHEJIANG RUIBO M&E CONSTR ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During use, one or a group of batteries may not match, such as: performance attenuation, hot spot effect, PID effect, partial shading and other adverse conditions, resulting in a mismatch or inharmony between its characteristics and the overall system, affecting the power generation efficiency of photovoltaic power plants. Even damage the photovoltaic modules

Method used

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  • A photovoltaic power station monitoring system, method and storage medium
  • A photovoltaic power station monitoring system, method and storage medium
  • A photovoltaic power station monitoring system, method and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0124] Combine figure 1 As shown in a specific embodiment, the method of the present invention can be implemented in a smart power filter control system, including several MPPT interface monitoring units, sound and light alarms, and monitoring terminals connected to the arithmetic controller. The MPPT interface monitoring unit includes a voltage current monitoring module, a temperature sensor, and a sunshine radiation sensor;

[0125] The voltage current monitoring module, a temperature sensor, and a sunshine radiation sensor respectively monitors the voltage, current, real-time sunshine radiation values ​​of the voltages, current, photovoltaic set strings connected to the photovoltaic settlement in the MPPT interface, and is located in the system, respectively The measured position; the MPPT interface monitoring unit is used to transmit the voltage current monitoring module, the temperature sensor, and the suggestion of the monitoring data of the sunshine radiation sensor to the ...

Embodiment 2

[0132] Combine figure 1 As shown in a specific embodiment, the method of the present invention can be implemented in a smart power filter control system, including several MPPT interface monitoring units, sound and light alarms, and monitoring terminals connected to the arithmetic controller. The MPPT interface monitoring unit includes a voltage current monitoring module, a temperature sensor, and a sunshine radiation sensor;

[0133] The voltage current monitoring module, a temperature sensor, and a sunshine radiation sensor respectively monitors the voltage, current, real-time sunshine radiation values ​​of the voltages, current, photovoltaic set strings connected to the photovoltaic settlement in the MPPT interface, and is located in the system, respectively The measured position; the MPPT interface monitoring unit is used to transmit the voltage current monitoring module, the temperature sensor, and the suggestion of the monitoring data of the sunshine radiation sensor to the ...

Embodiment 3

[0194] The present embodiment is a simplified scheme based on the standard scheme of Example 1 or Embodiment 2, an object to reduce the number of system components, reduce system volume, step, and further reduction of supporting costs.

[0195] The main simplification scheme is as follows:

[0196] Solution 1: If the photovoltaic station has a detection device or module in terms of temperature, sunshine radiation intensity, in the case of satisfying the system monitoring requirements and data accuracy requirements, the present invention can be canceled in the MPPT interface detecting unit to set the temperature sensor and the sunshine radiation sensor. , Directly adopt the detection data collected by the photovoltaic station, save system cost, reduce the number of system components, simplify the installation;

[0197] Solution 2: In order to increase the degree of system integration, the photovoltaic power station can be employed to satisfy the arithmetic controller of the present...

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Abstract

The invention discloses a photovoltaic power station monitoring system, method and storage medium, including a plurality of MPPT interface monitoring units, sound and light alarms and monitoring terminals all connected to an operation controller; wherein the MPPT interface monitoring unit includes a voltage and current monitoring module, a temperature sensor and solar radiation sensor; the MPPT interface monitoring unit preprocesses the monitoring data of the voltage and current monitoring module, temperature sensor and solar radiation sensor and sends it to the operation controller in real time. The analysis results are sent to the sound and light alarm to issue an early warning, and at the same time sent to the monitoring terminal to provide real-time monitoring data and early warning information for further operations by the administrator. Compared with the prior art, the present invention can not only monitor the working status of the photovoltaic power station in real time, but also identify the abnormalities or potential failures of the photovoltaic strings and components, find faults and eliminate them in time, so that the photovoltaic power station can work well and orderly at the most good condition.

Description

Technical field [0001] The present invention belongs to the field of intelligent control, and in particular, the present invention relates to a photovoltaic power plant monitoring system, method, and storage medium. Background technique [0002] With the development of the new day of technology, the photovoltaic power generation technology has been widely used at home and abroad. Its application form is widely distributed, mainly used in large terrestrial photovoltaic power plants, residential and commercial buildings roof, building photovoltaic Building integration, photovoltaic road light, etc. In practical applications, solar cells are typically connected in series or in parallel by multiple battery packs to achieve desired voltage or current. In order to achieve higher photoelectric conversion efficiency, each of the battery packs must have similar characteristics. In the process of use, one or a set of batteries may have no match, such as performance attenuation, hot spot ef...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02S50/10H02J13/00
CPCH02S50/10H02J13/00002H02J13/00034Y02E10/50
Inventor 陈令朱少华罗贞超陈宗兴王欢陈林刘鑫竑陈美玲李凤
Owner ZHEJIANG RUIBO M&E CONSTR ENG
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