CN101286765A - 一种低压电力载波通信方案 - Google Patents

一种低压电力载波通信方案 Download PDF

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Publication number
CN101286765A
CN101286765A CNA2007100738275A CN200710073827A CN101286765A CN 101286765 A CN101286765 A CN 101286765A CN A2007100738275 A CNA2007100738275 A CN A2007100738275A CN 200710073827 A CN200710073827 A CN 200710073827A CN 101286765 A CN101286765 A CN 101286765A
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low voltage
carrier
electric power
carrier communication
voltage electric
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CNA2007100738275A
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刘爱民
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Individual
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Priority to CNA2007100738275A priority Critical patent/CN101286765A/zh
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y02B70/34—Smart metering supporting the carbon neutral operation of end-user applications in buildings

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  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

一种低压电力载波通信方案。在低压(220V～/380V～)电力线路上，用户相对集中的的分支线路上加装阻波器和接力机。将大大改善低压线路载波传输特性，抑制载波信号的串扰，使载波的通信效果大大提高。另外，在电力变压器低压侧的零线输出端，加装阻波器，将有利于抑制变压器两侧载波信号的相互串扰，进一步改善两侧线路的载波传输特性和线路。

Description

一种低压电力载波通信方案
所属技术领域
本发明属于低压电力载波通信领域，涉及低压电力载波集中抄表技术。
背景技术
低压(220V~/380V~)电力载波通信，到目前为止，人们采用了过零点通信技术、窄带调频技术、宽带扩谱技术、多载波通信技术、跳频通信技术，采用了接力、加大功率等手段，但由于线路的载波传输特性不稳定和背景干扰过大，都没能达到较为理想的通信效果。也有人提出并实施了在每户的进线上加装阻波器，改善线路传输特性、提高通信效果的方案，但由于其体积、成本和施工的困难，一直效果不佳。
发明内容
本发明通过改造低压线路本身的载波传输特性，达到提高低压电力载波通信效果；
本发明所提供的技术方案是：在低压(220V~/380V~)电力线路的分支上加装阻波器和接力机。低压电力变压器输出的低压主线路，通过分支线路连接到最终用户，在用户相对集中的分支线路上加装阻波器和接力机；
本发明的有益效果：低压(220V~/380V~)电力线路载波通信困难的关键：载波传输特性不稳定和背景干扰过大；在用户相对集中的分支线路上加装阻波器，将大大改善其载波传输特性，抑制载波信号的串扰，使载波的通信效果大大提高。另外，在电力变压器低压侧的零线输出端，加装阻波器，将有利于抑制变压器两侧载波信号的相互串扰，进一步改善两侧线路的载波传输特性和线路参数。
具体实施方式
采用大饱和电流电感与电容组成LC并联谐振回路，串到用户较为集中的分支线路上，可以是三相线同时串入，也可只给零线串入，也可三相四线同时串入；在同一台区下的所有用户集中的分支线路上都串入这种LC并联谐振回路(简称LCN)；在变压器的零线输出端和零线线路之间也可串入LC并联谐振回路(简称LCO)；将集中器安装在变压器旁边的低压线路上，注意集中器的零线要连接在LCO的零线侧，而不是变压器侧；在每个LCN处安装接力机，接力机将LCN一侧的信号接收放大传输到LCN的另一侧；在用户进线处的载波电能表，通过接力机接收集中器的命令，又通过接力机上传自身电能表数据。

Claims (2)

1，一种低压电力载波通信方案，其特征是：在低压(220V~/380V~)电力线路的分支上加装阻波器和接力机。
2，根据权利要求1所述的低压电力载波通信方案，其进一步特征是：在低压线路上，用户相对集中的分支线路上加装阻波器和接力机。
CNA2007100738275A 2007-04-11 2007-04-11 一种低压电力载波通信方案 Pending CN101286765A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2007100738275A CN101286765A (zh) 2007-04-11 2007-04-11 一种低压电力载波通信方案

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2007100738275A CN101286765A (zh) 2007-04-11 2007-04-11 一种低压电力载波通信方案

Publications (1)

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CN101286765A true CN101286765A (zh) 2008-10-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105553525A (zh) * 2015-12-10 2016-05-04 嘉兴国电通新能源科技有限公司 一种基于速率优化的mimo电力线网络干扰抑制方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105553525A (zh) * 2015-12-10 2016-05-04 嘉兴国电通新能源科技有限公司 一种基于速率优化的mimo电力线网络干扰抑制方法
CN105553525B (zh) * 2015-12-10 2018-08-14 嘉兴国电通新能源科技有限公司 一种基于速率优化的mimo电力线网络干扰抑制方法

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