Distributed photovoltaic data backfilling system and method

A distributed photovoltaic and data technology, applied in transmission systems, photovoltaic power generation, system integration technology, etc., can solve the problem that the efficiency and reliability of data packet transmission are not considered, the impact of real-time monitoring by the centralized control center, and the quality of communication channels are not applicable, etc. problems, to achieve the effect of improving communication efficiency and reliability, improving communication flexibility, and reducing size

Pending Publication Date: 2022-02-18
NARI TECH CO LTD +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are more or less problems in the existing breakpoint resume transmission technologies. When some resume transmissions, the transmission of historical data will affect the transmission of real-time data and affect the real-time monitoring of the centralized control center; The transmission efficiency and reliability are not considered, and it is generally used for data synchronization after the communication channel is stable and interrupted for a short time. It is not suitable for distributed photovoltaic system communication channel with poor quality and intermittent application scenarios

Method used

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  • Distributed photovoltaic data backfilling system and method
  • Distributed photovoltaic data backfilling system and method
  • Distributed photovoltaic data backfilling system and method

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0032] Such as figure 1 As shown, a distributed photovoltaic data backfill system includes a cloud platform system and intelligent terminal equipment. The cloud platform system regularly checks whether there is a breakpoint in the data. If there is a breakpoint, it will automatically create a data backfill task list (the task list is composed of several task items, and a task item is the data that has not been transmitted between each disconnection and re-online. A set of time stamp pairs consisting of the start time stamp and end time stamp of the package, and those whose time interval between adjacent time stamp pairs is less than the threshold are classified into the same task item), and then start the data backfill selection task according to the initial state of the task item, and notify the intelligent The terminal device organizes the relevant data into data backfill compressed files, and then according to the ready status of the task item, establishes a file upload pro...

Embodiment 2

[0036] Such as figure 2 As shown, a distributed photovoltaic data backfill method, wherein the cloud platform system performs the following steps:

[0037] (1) Receive a monitoring data packet sent by an intelligent terminal device, where the monitoring data packet includes a time stamp of the data packet and a terminal number.

[0038] (2) Determine whether the terminal number in the received monitoring data packet is consistent with the disconnected terminal number, if not, perform real-time data storage, otherwise perform real-time data storage and update the data backfill task list corresponding to the terminal number.

[0039] The data backfilling task list consists of several task items. A task item is a set of time stamp pairs consisting of the start time stamp and end time stamp of data packets that have not been transmitted between disconnection and reconnection. Adjacent time stamp pairs Time intervals that are less than the threshold are classified into the same t...

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Abstract

The invention discloses a distributed photovoltaic data backfilling system and method in the technical field of distributed photovoltaic, and the system comprises a cloud platform system, intelligent terminal equipment, and a communication module for the data interaction between the cloud platform system and the intelligent terminal equipment, wherein the cloud platform system comprises a breakpoint checking module, a task list management module and a data processing module, and the breakpoint checking module receives a monitoring data packet and judges whether the monitoring data packet has a breakpoint; when the monitoring data packet has a breakpoint, a task list containing a data backfilling task item is updated; the task list management module sends a data backfilling selection data packet to the intelligent terminal based on an initial state of a task item in a task list; a data backfilling and rechecking data packet fed back by the intelligent terminal equipment is received, and the task item is updated. According to the method, the communication flexibility under an unstable communication channel is effectively improved, the file can be immediately uploaded after being prepared, and subsequent batch uploading can be arranged when the communication channel is frequently connected and disconnected.

Description

technical field [0001] The invention relates to a distributed photovoltaic data backfill system and method, belonging to the technical field of distributed photovoltaics. Background technique [0002] With the large-scale development of distributed photovoltaic power plants, in order to facilitate the unified management of subordinate photovoltaic power plants, power generation groups generally establish regional / national centralized control centers / operation and maintenance centers, and the centralized control centers build cloud platform systems to communicate with all subordinate photovoltaic power plants. The intelligent terminal equipment interaction of distributed photovoltaic power plants is responsible for collecting relevant data of photovoltaic power plants for unified monitoring and management. At present, the distributed photovoltaic power station is multifaceted, and the link with the centralized control center is generally 2G / 3G / 4G wireless. Due to various rea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J13/00H04L67/06H02J3/38
CPCH02J13/00006H02J13/00028H02J13/00002H04L67/06H02J3/381H02J2300/24Y02E10/56Y02E40/70Y02E60/00Y04S10/123Y04S40/12
Inventor 徐麟霍乾涛蔡杰孙延岭张凌浩张明嵇文路方磊王建
Owner NARI TECH CO LTD
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