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Photovoltaic assembly state information monitoring device based on power line communication and monitoring method thereof

A technology of power line communication and photovoltaic modules, which is applied in the direction of circuit devices, electrical components, transmission monitoring, etc., can solve the problems of high module complexity and reduce application practicality, and achieve the effect of long transmission distance and stable and reliable signal quality

Inactive Publication Date: 2016-05-18
吕海峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The high modular complexity of the technology reduces the practicality of its application

Method used

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  • Photovoltaic assembly state information monitoring device based on power line communication and monitoring method thereof
  • Photovoltaic assembly state information monitoring device based on power line communication and monitoring method thereof
  • Photovoltaic assembly state information monitoring device based on power line communication and monitoring method thereof

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Embodiment Construction

[0026] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0027] Please see attached figure 1 and attached figure 2 As shown, a photovoltaic module status information monitoring device based on power line communication, including management equipment C1, inverter 1, multiple forwarding equipment C2, multiple combiner boxes 2, multiple groups of photovoltaic modules 3 and multiple groups of component status sensors C3 The multiple groups of component state sensors C3 are respectively connected in parallel to the positive and negative poles of the multiple groups of photovoltaic components 3, and the multiple forwarding devices C2 are respectively connected in parallel to the positive and negative poles of the multiple combiner boxes 2 Above, the management device C1 is connected in parallel to the positive and negative poles of the inverter 1; the inverter 1 is connected to the multiple sets of photovoltaic mo...

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Abstract

The invention discloses a photovoltaic assembly state information monitoring device based on power line communication. The photovoltaic assembly state information monitoring device comprises management equipment, an inverter, a plurality of forwarding devices, a plurality of header boxes, a plurality of sets of photovoltaic assemblies and a plurality of sets of assembly state sensors. The plurality of sets of assembly state sensors are connected with the anodes and cathodes of the plurality of sets of photovoltaic assemblies in parallel. The plurality of forwarding devices are connected with the anodes and the cathodes of the plurality of header boxes. The management equipment is connected between the anode and the cathode of the inverter. The inverter is connected with the plurality of sets of photovoltaic assemblies through the plurality of header boxes so that the management equipment is connected with the plurality of sets of assembly state sensors through the plurality of forwarding devices or the management equipment is directly connected with the plurality of sets of state sensors. The photovoltaic assembly state information monitoring device is composed of three grades of equipment in a pyramid structure. Long communication distance can be realized. Direct communication from the assembly to the inverter management module is realized.

Description

technical field [0001] The invention relates to a photovoltaic power generation system, in particular to a monitoring device and a monitoring method for status information of photovoltaic components based on power line communication. Background technique [0002] According to statistics, 60% of the failures of domestic photovoltaic power plants occur on the DC side, but the current monitoring status of photovoltaic power plants is very limited. Most of the photovoltaic power plants that have been built do not have a monitoring system, and the operation, maintenance and inspection of many centralized and distributed photovoltaic power plants still rely heavily on manual work. The operation and maintenance workload is heavy, the cost is high, and the efficiency is low. Therefore, the power station operates in a low-efficiency state for a long time, and most faults are in an unknowable and uncontrollable state. In light cases, the actual power generation is far from the des...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B3/54H04B3/56G01D21/02H04B17/309H02J13/00
CPCH04B3/544H04B3/56H04B17/309G01D21/02H02J13/00007Y04S40/121Y02E60/00
Inventor 吕海峰
Owner 吕海峰
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