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A performance monitoring method, device and system for a photovoltaic energy storage system

A photovoltaic energy storage and system performance technology, which is applied in the monitoring of photovoltaic systems, photovoltaic power generation, photovoltaic modules, etc., can solve the problems of cumbersome monitoring and debugging, affecting work efficiency, etc., and achieve the effect of optimizing performance and improving service life

Active Publication Date: 2018-05-29
CSI SOLAR POWER GROUP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the existing photovoltaic energy storage system is assembled, the manufacturer usually only performs simple monitoring and corresponding debugging on one or two parts, or performs cumbersome monitoring and debugging on each part separately, which affects work efficiency

Method used

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  • A performance monitoring method, device and system for a photovoltaic energy storage system
  • A performance monitoring method, device and system for a photovoltaic energy storage system
  • A performance monitoring method, device and system for a photovoltaic energy storage system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] figure 1 It is a schematic flowchart of a method for monitoring performance of a photovoltaic energy storage system provided in Embodiment 1 of the present invention. The method can be executed by a performance monitoring device for a photovoltaic energy storage system, and can be built into the terminal equipment as a part of the terminal equipment. Such as figure 1 As shown, the method includes:

[0026] Step 101 , collecting working state parameter data of inverters, battery packs and loads in the photovoltaic energy storage system every set time.

[0027] The main working process of the photovoltaic energy storage system is to convert the DC power generated by the photovoltaic cell components into AC power through the inverter, and then charge and store it in the battery pack. When the user needs to use this part of electric energy, the load is connected to the corresponding external output interface of the inverter, and the battery pack outputs electric energy to...

Embodiment 2

[0036] figure 2 It is a schematic flowchart of a method for monitoring performance of a photovoltaic energy storage system provided in Embodiment 2 of the present invention. The method can be executed by a performance monitoring device for a photovoltaic energy storage system, and can be built into the terminal equipment as a part of the terminal equipment. Such as figure 2 As shown, the method includes:

[0037] Step 201, collect the working state parameter data of the inverter, the battery pack and the load in the photovoltaic energy storage system every set time.

[0038] Specifically, the photovoltaic energy storage system performance monitoring device is a virtual instrument based on Labview. The terminal equipment is a monitoring computer.

[0039] Exemplarily, the photovoltaic energy storage system includes an energy management module, which can communicate with inverters, battery packs, loads and other components in the photovoltaic energy storage system, obtain a...

Embodiment 3

[0049] Figure 4 It is a schematic flow chart of a photovoltaic energy storage system performance monitoring method provided in Embodiment 3 of the present invention. The method can be executed by a photovoltaic energy storage system performance monitoring device, and can be built into the terminal equipment as a part of the terminal equipment. Such as Figure 4 As shown, the method includes:

[0050] Step 401 , collect working state parameter data of inverters, battery packs and loads in the photovoltaic energy storage system every set time.

[0051] Step 402, extracting the parameter value corresponding to the preset parameter name information in the single-collected working state parameter data.

[0052] Step 403, converting the extracted parameter values ​​into one-dimensional array data as output data.

[0053] Step 404, extracting the parameter value corresponding to the preset parameter name information in the working state parameter data collected multiple times.

...

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Abstract

The embodiment of the invention relates to the field of photovoltaic energy storage equipment, and particularly relates to a method, device and system for monitoring the performance of a photovoltaic energy storage system. The method includes the steps that the working condition parameter data of an inverter, a battery pack and a load in the photovoltaic energy storage system are collected once every set time, the working condition parameter data are converted into output data, and the output data are displayed. According to the technical scheme, the three important constituent parts in the photovoltaic energy storage system can be comprehensively monitored in real time, workers can quickly judge whether the working condition of the photovoltaic energy storage system is normal or not according to the displayed data, all the constituent parts of the photovoltaic energy storage system are debugged so that the constituent parts can work coordinately, the performance of the photovoltaic energy storage system can be monitored, and the service life of the photovoltaic energy storage system can be effectively prolonged.

Description

technical field [0001] Embodiments of the present invention relate to the field of photovoltaic energy storage equipment, and in particular to a performance monitoring method, device and system for a photovoltaic energy storage system. Background technique [0002] The photovoltaic energy storage system is an energy storage system suitable for photovoltaic modules with a conventional rated output power of 250W to 300W. It is widely used in distributed household photovoltaic systems and can convert unstable DC power output by a single photovoltaic module into a stable The output 220V AC power is stored and has the advantages of convenient installation, high reliability and low cost. [0003] The battery pack, inverter and load are the three important components of the photovoltaic energy storage system. In order to ensure the normal operation of the photovoltaic energy storage system and enable it to have a long service life, these three parts work closely together to ensure ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02S50/00
CPCH02S50/00Y02E10/50
Inventor 肖建伟刘明岳兰天
Owner CSI SOLAR POWER GROUP CO LTD
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