A 220v intelligent socket with low-frequency load shedding function and its working method

A smart socket and load shedding technology, which is applied to the parts of the connecting device, the coupling device, the line/collector parts, etc., to reduce the probability of malfunction and improve the accuracy

Active Publication Date: 2019-11-26
SHANDONG UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the existing 220V socket cannot achieve the purpose of low-frequency load shedding through automatic switching

Method used

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  • A 220v intelligent socket with low-frequency load shedding function and its working method
  • A 220v intelligent socket with low-frequency load shedding function and its working method
  • A 220v intelligent socket with low-frequency load shedding function and its working method

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[0047] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0048] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0049] figure 1 It is a hardware structural diagram of the intelligent socket of the present invention.

[005...

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Abstract

The invention discloses a 220V intelligent socket with a low-frequency load-shedding function and an operation method thereof. The socket comprises a power grid single-phase current input interface which is used for sampling a power grid alternating current voltage signal based on a clock synchronizing signal and transmitting the signal to a digital signal processor through a voltage transformer and an A / D conversion module in sequence; the digital signal processor is connected with a relay; the relay is connected with a jack metal sheet; the digital signal processor is configured to perform steps of reading the electrical signal sampled by the A / D conversion module, and calculating the real-time frequency value of the power grid; and making comparison between the real-time frequency value and a set frequency value, and then transmitting on-off control signals to the relay so as to switch off or recover power supply of the socket power supply in order to realize load shedding. By integrating the low-frequency load-shedding function to the 220V socket, the space is reduced and cost is lowered; and the intelligent socket is suitable for wide installation on the 220V side and can be matched with a high-voltage-side automatic low-frequency load-shedding apparatus, so that the intelligent socket is of great significance to improvement of frequency stability of the electric power system.

Description

technical field [0001] The invention belongs to the technical field of low-frequency load shedding in power systems, and in particular relates to a 220V intelligent socket with a low-frequency load shedding function and a working method thereof. Background technique [0002] Driven by the energy revolution, a large number of intermittent renewable energy sources such as wind power and photovoltaic power generation have a great impact on the operating characteristics of the power grid. The dynamic behavior of the power system on the distribution network side is becoming more and more complex, and the frequency stability is more difficult to control. . [0003] Low-frequency load shedding: When the system suffers from large disturbances, there will often be an unbalanced supply and consumption of active power. When the frequency drops, according to the pre-set action frequency value, a part of the pre-arranged secondary loads in the system will be removed in turn, so that the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01R13/66H01R13/70H01R43/00
CPCH01R13/6633H01R13/665H01R13/70H01R43/00
Inventor 张恒旭王磊刘萌
Owner SHANDONG UNIV
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