DC voltage type PLC photovoltaic shutoff device circuit

A DC voltage and disconnector technology, applied in circuit devices, electrical components, information technology support systems, etc., can solve problems such as large installation and space problems, interference, and many factors of wireless communication interference, and achieve stable signal communication. , the effect of improving efficiency and high signal anti-interference ability

Pending Publication Date: 2018-12-07
JIANGSU GNE NEW ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional wireless communication method requires collectors and aggregators. The collectors are placed outdoors, and the aggregators are placed indoors. 485 communication is required between them, which brings great installation and space problems. Secondly, there are many interference factors for wireless communication. , different frequency bands must be used between adjacent power stations, and there will be interference between frequency bands, resulting in packet loss and affecting the reliability of communication

Method used

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  • DC voltage type PLC photovoltaic shutoff device circuit
  • DC voltage type PLC photovoltaic shutoff device circuit

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Embodiment Construction

[0015] A DC voltage type PLC photovoltaic switch circuit in the embodiment of the present invention has high efficiency, does not affect the characteristics of the original system, has high reliability, and is simple to implement.

[0016] In order to make the above objects, features and beneficial effects of the present invention more comprehensible, specific examples of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0017] figure 1 It is a schematic diagram of a DC voltage type PLC photovoltaic switch circuit in an embodiment of the present invention; figure 2 It is a schematic diagram of network connection of multiple DC voltage type PLC photovoltaic switchers in the embodiment of the present invention.

[0018] Please refer to figure 1 and figure 2 , a DC voltage type PLC photovoltaic switch circuit provided by the present invention, photovoltaic module VPV, input capacitor C4, switch tube Q1, freewheeling diod...

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PUM

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Abstract

The invention discloses a DC voltage type PLC photovoltaic shutoff device circuit, which includes a photovoltaic module VPV, an input capacitor C4, a switch tube Q1, a freewheel diode D1, a first LC notch filter, an output capacitor C5, a transformer T1, a coupling capacitor C6, a third LC notch filter, a signal filter resistor R1, a signal filter capacitor C7 and a second LC notch filter. The twoends of the output capacitor C5 are output terminals. When the switch tube Q1 is opened, a series current and a PLC signal pass through the freewheel diode D1 to realize normal power line carrier communication; and when the switch tube Q1 is closed, power line carrier communication is stopped, and a series current passes through the switch tube Q1, without affecting the efficiency of the system and the stability of the system. The efficiency of the system, the stability of the system and the reliability of communication can be improved.

Description

technical field [0001] The invention relates to a PLC photovoltaic switch circuit, in particular to a DC voltage type PLC photovoltaic switch circuit, which belongs to the technical field of power electronic converters and communications. Background technique [0002] The traditional wireless communication method requires collectors and aggregators. The collectors are placed outdoors, and the aggregators are placed indoors. 485 communication is required between them, which brings great installation and space problems. Secondly, there are many interference factors for wireless communication. , Different frequency bands must be used between adjacent power stations, and there will be interference between frequency bands, resulting in packet loss and affecting the reliability of communication. [0003] Power Line Communication (PLC) is a communication method that uses a power line as a signal channel to transmit data. This technology is to load the high-frequency signal carryin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J13/00
CPCH02J13/00007Y04S40/121Y02E60/00
Inventor 张有清姚华文
Owner JIANGSU GNE NEW ENERGY TECH CO LTD
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