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Electricity utilization information acquisition system interference signal suppression method and system thereof

A collection system and interference signal technology, applied in the field of electric power, can solve the problems of reduced work efficiency, strong randomness, and tediousness, and achieve the effects of convenient installation and debugging, improved collection success rate, and suppressed interference

Active Publication Date: 2015-11-04
STATE GRID CORP OF CHINA +2
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Problems solved by technology

This process is cumbersome and highly random. It is necessary to prepare a variety of capacitors with different capacitances on site, which reduces work efficiency and affects the work process of improving the success rate of power consumption information collection.

Method used

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  • Electricity utilization information acquisition system interference signal suppression method and system thereof
  • Electricity utilization information acquisition system interference signal suppression method and system thereof
  • Electricity utilization information acquisition system interference signal suppression method and system thereof

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Embodiment Construction

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0034] Embodiments of the present invention provide a system and method for suppressing interference signals of a power consumption information collection system. The system and method are based on the Butterworth type low-pass filter to suppress the interference generated by the high-frequency harmonics in the electrical equipment on the power line carrier communication signal.

[0035] figure 1It is a schematic structural diagram of a system for suppressing interference signals of an electricity consumption information collection system according to an embodiment o...

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Abstract

The invention provides an electricity utilization information acquisition system interference signal suppression method and a system thereof. The method comprises the steps that an interference frequency band of power line carrier communication affected by harmonic interference signals is acquired, and a system function of a Butterworth type low-pass filter is generated according to a set order number and the interference frequency band; input end impedance of the Butterworth type low-pass filter is generated according to the system function, electricity utilization equipment generating the harmonic interference signals and a circuit formed by connection of the electricity utilization equipment and a power grid; the Butterworth type low-pass filter is realized according to a Calder trapezoid circuit and the input end impedance; and the Butterworth type low-pass filter is arranged between the electricity utilization equipment and the power grid so as to suppress interference of high-frequency harmonic wave in the electricity utilization equipment on power line carrier communication signals. According to the method and the system thereof, the interference signals in a power carrier communication circuit can be effectively eliminated via the specially designed Butterworth type low-pass filter.

Description

technical field [0001] The invention relates to the field of electric power technology, in particular to a method and system for suppressing interference signals of a power consumption information collection system. Background technique [0002] The power consumption information collection system is the basis for collecting, processing and real-time monitoring of power consumption information of power users, and is an important part of building a unified and strong smart grid. The power consumption information collection system can be physically divided into three parts according to the deployment location: the main station, the communication channel, and the collection equipment. The communication channel is the bridge and link connecting the terminal equipment and the main station of the acquisition system. At present, the communication channel used by the low-voltage meter reading concentrator is mainly the power line carrier. Power line carrier communication refers to t...

Claims

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Application Information

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IPC IPC(8): H04B3/54H04B3/56H04L25/03
Inventor 王鹏伍傅军孙志杰张艳丽
Owner STATE GRID CORP OF CHINA
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