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Power line carrier communication device and method

A power line carrier and communication device technology, applied in power line communication system, distribution line transmission system, signal transmission/reception through power distribution, etc., can solve the problem of low efficiency of linear power amplifier, low transmitter and standby power consumption, loss Large and other problems, to achieve the effect of reducing transmission power, reducing size and cost, and reducing requirements

Active Publication Date: 2022-08-02
HOYMILES POWER ELECTRONICS INC
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Problems solved by technology

[0003] The traditional power line carrier communication device first generates the carrier communication signal, then filters out the high-order harmonic components through a filter, and then amplifies it through a linear power amplifier, and then couples it to the power line by a transformer. The disadvantage is that the linear power amplifier has low efficiency, large loss, and serious heat generation. , not suitable for some application scenarios that require lower transmitter and standby power consumption

Method used

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  • Power line carrier communication device and method
  • Power line carrier communication device and method
  • Power line carrier communication device and method

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Embodiment Construction

[0054] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application will be described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application. Based on the embodiments provided in this application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of this application. In addition, it will also be appreciated that while such development efforts may be complex and lengthy, for those of ordinary skill in the art to which the present disclosure pertains, the techniques disclosed in this application Some changes in design, manufacture or production based on the content are only conventional technical means, and it should not be understood tha...

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Abstract

The present application relates to the field of carrier communication, and in particular, to a power line carrier communication device and method. The device includes: a communication processing unit for modulating a communication signal into a control signal, the communication signal including communication data; a switch network unit for outputting a multi-level carrier signal corresponding to the communication signal according to the control signal, wherein the carrier contained in the signal n The harmonic components of the +1 order and the following orders are respectively less than or equal to the first threshold value, n represents the number of levels contained in the carrier signal, and n is an odd number greater than or equal to 3; the impedance network unit is used to filter the carrier signal and couple it to the power line. The invention improves the transmission efficiency of the power line carrier signal, greatly reduces the transmission power of the power line carrier signal; realizes that in the conversion process of the carrier signal, all or part of the low-order harmonics of the n+1 order and below are eliminated, reducing the reduction of the power line carrier signal. The requirement of the output low-pass filter greatly reduces the size and cost of the filter.

Description

technical field [0001] The present application relates to the field of carrier communication, and in particular, to a power line carrier communication device and method. Background technique [0002] Power line carrier communication uses the existing power line as the transmission medium and does not require additional communication cables. It has advantages in feasibility and cost, so it has been widely used in application scenarios such as power meter reading and distributed photovoltaic systems. [0003] The traditional power line carrier communication device first generates the carrier communication signal, and then filters out the high-order harmonic components through the filter, and then is amplified by the linear power amplifier and then coupled to the power line by the transformer. , not suitable for some application scenarios that require lower transmitter and standby power consumption. SUMMARY OF THE INVENTION [0004] Based on this, it is necessary to provide ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B3/56H04B3/54
CPCH04B3/56H04B3/54H04B2203/5425H04B2203/5491
Inventor 禹红斌蔡燕亮周世高赵一杨波
Owner HOYMILES POWER ELECTRONICS INC
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