Long-distance high-speed broadband power line communication method

A broadband communication and power line technology, applied in the application of power line communication, distribution line transmission system, electrical components, etc., can solve the problems of power system communication work requirements, unsatisfactory transmission speed, difficult long-distance communication, etc.

Active Publication Date: 2011-06-29
STATE GRID CORP OF CHINA +3
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AI Technical Summary

Problems solved by technology

Therefore, affected by the distributed capacitance of high-voltage lines, it is difficult to achieve long-distance communication. The existing technology and practice show that with the original communication method, the longest communication distance between two adjacent power communication devices is only 1.8km. It is only applicable to the distribution network of medium volta

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  • Long-distance high-speed broadband power line communication method
  • Long-distance high-speed broadband power line communication method
  • Long-distance high-speed broadband power line communication method

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Experimental program
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Embodiment Construction

[0035] Best practice:

[0036] Refer to attached figure 1 , a long-distance high-speed power line broadband communication method, comprising the steps of:

[0037] Provide a power line with a voltage level of 35kV;

[0038] Provide a long-distance power line broadband communication device (hereinafter referred to as the power communication device), which includes a transmission interface, a data processing module, a signal sending device and a signal receiving device, the transmission interface is a terminal connection interface, which is connected to the data processing module;

[0039] The signal transmission device of the power communication device includes a power modulation module, a power carrier transmission module and a power carrier sampling module connected in sequence, wherein the input end of the power modulation module is connected to the data processing module, and the power carrier sampling module is connected to the power carrier sampling module through a coup...

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Abstract

The invention relates to a broadband power line communication method, in particular to a 35 kv-voltage grade line-based long-distance high-speed broadband power line communication method. The method comprises the following steps of: first, arranging a power communication device on a power line and coupling signals to the power line in a wired way; then, transmitting radio carrier signals to space according to high-voltage power line characteristics; and finally, receiving radio signals in a wireless way. Technicians overcome technical prejudices in the field, the radio signals transmitted by the power line and an antenna are acquired by a thought of taking the power line as the antenna and by adopting the method of transmitting by using the power line directly and receiving by using the antenna, so that the communication distance is expanded over 8 km successfully and effectively; therefore, the broadband power line communication with the first-stage relay of 14.5 km is realized.

Description

technical field [0001] The invention relates to a broadband communication method, in particular to a long-distance high-speed power line broadband communication method based on a 35kV voltage level line. Background technique [0002] Utilizing high-voltage power line broadband communication technology can establish its own dedicated data channel for the power system, which has outstanding advantages such as convenience, speed, low investment cost, and simple engineering construction. High-voltage power line communication only needs to install high-voltage power line communication equipment at both ends of the high-voltage power line, which makes communication on the high-voltage power line convenient and feasible. In the prior art, the long-distance high-speed power line broadband communication method adopted is to connect the sending end and receiving end of the power communication device with the high-voltage power line for communication, and implement wired sending and wi...

Claims

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Application Information

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IPC IPC(8): H04B3/54H04L27/26
CPCH04B3/542H04L27/26H04B3/54H04B2203/5441
Inventor 丁智华王东方章浦军林勇杨仁凑马忠强林福何时秋涂承谦蔡冲宇
Owner STATE GRID CORP OF CHINA
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