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Photovoltaic power station monitoring system and method and storage medium

A photovoltaic power station and monitoring system technology, applied in the monitoring of photovoltaic systems, photovoltaic power generation, photovoltaic modules, etc., can solve problems such as disharmony, performance attenuation, and damage to photovoltaic modules

Active Publication Date: 2021-04-30
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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  • Photovoltaic power station monitoring system and method and storage medium
  • Photovoltaic power station monitoring system and method and storage medium
  • Photovoltaic power station monitoring system and method and storage medium

Examples

Experimental program
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Effect test

Embodiment 1

[0124] combine figure 1 As shown, in a specific embodiment, the method of the present invention can be realized in a kind of intelligent electric power filter control system mode, and this system includes several MPPT interface monitoring units, sound and light alarm and monitoring terminal all connected with the operation controller ; Wherein the MPPT interface monitoring unit includes a voltage and current monitoring module, a temperature sensor and a sunlight radiation sensor;

[0125] The voltage and current monitoring module, the temperature sensor and the sunshine radiation sensor respectively monitor the voltage and current of the photovoltaic strings connected to the MPPT interface, the real-time temperature and the real-time sunshine radiation value of the photovoltaic strings, and are respectively arranged in the system for easy and accurate The location of the measurement; the MPPT interface monitoring unit is used to preprocess the monitoring data of the voltage an...

Embodiment 2

[0132] combine figure 1 As shown, in a specific embodiment, the method of the present invention can be realized in a kind of intelligent electric power filter control system mode, and this system includes several MPPT interface monitoring units, sound and light alarm and monitoring terminal all connected with the operation controller ; Wherein the MPPT interface monitoring unit includes a voltage and current monitoring module, a temperature sensor and a sunlight radiation sensor;

[0133] The voltage and current monitoring module, the temperature sensor and the sunshine radiation sensor respectively monitor the voltage and current of the photovoltaic strings connected to the MPPT interface, the real-time temperature and the real-time sunshine radiation value of the photovoltaic strings, and are respectively arranged in the system for easy and accurate The location of the measurement; the MPPT interface monitoring unit is used to preprocess the monitoring data of the voltage an...

Embodiment 3

[0194] This embodiment is a simplified solution based on the standard solution of embodiment 1 or embodiment 2, with the purpose of reducing the number of system components, reducing system volume, steps and further reducing supporting costs.

[0195] The main simplification scheme is as follows:

[0196] Solution 1: If the photovoltaic power station has been equipped with detection equipment or modules for temperature and sunlight radiation intensity, the temperature sensor and sunlight radiation sensor in the MPPT interface detection unit of the present invention can be canceled if the system monitoring requirements and data accuracy requirements are met. , directly adopt the detection data collected by the photovoltaic power station, save system cost, reduce the number of system components, and simplify installation;

[0197] Scheme 2: In order to further improve the degree of system integration, the existing arithmetic controller of the photovoltaic power station that meet...

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Abstract

The invention discloses a photovoltaic power station monitoring system and method and a storage medium. The photovoltaic power station monitoring system comprises a plurality of MPPT interface monitoring units, an audible and visual alarm and a monitoring terminal which are all connected with an operation controller. Each MPPT interface monitoring unit comprises a voltage and current monitoring module, a temperature sensor and a sunlight radiation sensor; the MPPT interface monitoring units preprocess monitoring data of the voltage and current monitoring module, the temperature sensor and the sunlight radiation sensor and then send the monitoring data to the operation controller in real time, the operation controller sends an operation analysis result to the audible and visual alarm after preset algorithm operation and control strategy analysis, early warning is sent out, and meanwhile the operation analysis result is sent to the monitoring terminal. And real-time monitoring data and early warning information are provided for further operation of an administrator. Compared with the prior art, the photovoltaic power station monitoring system can monitor the working state of the photovoltaic power station in real time, can identify abnormity or fault hidden dangers of photovoltaic strings and assemblies, timely discovers and eliminates faults, and enables the photovoltaic power station to well and orderly work in an optimal state.

Description

technical field [0001] The invention belongs to the technical field of intelligent control, and in particular relates to a photovoltaic power station monitoring system, method and storage medium. Background technique [0002] With the rapid development of science and technology, photovoltaic power generation technology has been widely used at home and abroad. Its application forms are various and its application places are widely distributed. Building integration, photovoltaic street lights, etc. In practical applications, solar cells are generally connected in series or in parallel by multiple battery components to obtain the desired voltage or current. In order to achieve high photoelectric conversion efficiency, each cell in the cell assembly must have similar characteristics. 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 inhar...

Claims

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Application Information

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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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