DC carrier based photovoltaic accessing monitoring system and method

A monitoring system and DC carrier technology, applied in the monitoring of photovoltaic systems, photovoltaic power generation, photovoltaic modules, etc., can solve the problems of long distance, heavy wiring workload, poor protocol link maintenance and openness, etc.

Inactive Publication Date: 2015-02-04
HEFEI UNIV OF TECH +1
View PDF12 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The inverter is generally installed in the control room, the combiner box is generally installed near the photovoltaic modules, and the distance between the combiner box and the inverter is generally long, and the data of the combiner box and the photovoltaic module is usually collected by RS485 communication using shielded twisted pairs. Come

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • DC carrier based photovoltaic accessing monitoring system and method
  • DC carrier based photovoltaic accessing monitoring system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] A DC carrier-based photovoltaic access monitoring system includes a monitoring terminal 1 for collecting voltage, current, and switching signals of the combiner box 4. The carrier module in the monitoring terminal 1 is connected to the carrier main node 2 through a DC power line, and the carrier The master node 2 communicates with the master server 3 through the TCP / IP protocol, such as figure 1 Shown.

[0024] Such as figure 2 As shown, the monitoring terminal 1 includes a DC voltage sensor for collecting voltage signals of the combiner box 4, a DC current sensor for collecting current signals of the combiner box 4, and a switch input circuit for collecting switch signals of the combiner box 4, The output terminals of the DC voltage sensor and the DC current sensor are both connected to the input terminal of the analog switch, and the output terminal of the analog switch is connected to the input terminal of the DSP processor through the analog-to-digital conversion chip...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a DC carrier based photovoltaic accessing monitoring system. The system comprises a monitoring terminal for acquiring voltage, current and switching quantity signals of a combiner box; a carrier module in the monitoring terminal is connected with a main carrier node through a DC power wire; the main carrier node communicates with a main station server through TCP/IP protocol. The invention also discloses a monitoring method of the DC carrier based photovoltaic accessing monitoring system. According to the system and method, the TCP connection and data transmission are performed between the main station server and the monitoring terminal on site through a DC power wire carrier channel; the main substation server and the monitoring terminal can be used once being plugged, and the data can be acquired without re-arranging communication cables; meanwhile, the TCP/IP connection access based on the carrier channel can be realized by the method, and therefore, the openness and generality of data acquiring of photovoltaic accessing monitoring are ensured.

Description

Technical field [0001] The invention relates to the technical field of monitoring of photovoltaic power generation systems, in particular to a photovoltaic access monitoring system based on a DC carrier and a monitoring method thereof. [0002] Background technique [0003] The equipment in the current photovoltaic power generation system mainly includes photovoltaic modules, combiner boxes and inverters. The inverter is generally installed in the control room, the combiner box is usually installed near the photovoltaic module, and the distance between the combiner box and the inverter is generally long, and the data of the combiner box and the photovoltaic module are usually collected through RS485 communication through a shielded twisted pair. Since the communication line and the cable line have to be wired at the same time, the wiring workload is heavy. In addition, since the current PV modules and combiner box monitoring all use the Modbus protocol, the protocol link maintena...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01R31/08H04L29/06H02S50/00
CPCY02E10/50
Inventor 李林丁明曹军郭晋楠陶维青
Owner HEFEI UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap