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Power generator electrical quantity transducer based on Hart communication technology

A technology of power transmitter and communication technology, which is applied in the field of generator power transmitter, can solve the problems of inability to realize two-way digital communication and high cost, and achieve the effect of saving equipment investment cost and saving transformation cost

Inactive Publication Date: 2019-06-07
南京南自电力仪表有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the embodiment of this application is to propose a generator power transmitter and recommended device based on Hart communication technology to solve the problems of inability to realize two-way digital communication and high cost

Method used

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  • Power generator electrical quantity transducer based on Hart communication technology
  • Power generator electrical quantity transducer based on Hart communication technology
  • Power generator electrical quantity transducer based on Hart communication technology

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Embodiment Construction

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the application; the terms used herein in the description of the application are only to describe specific embodiments The purpose is not to limit the present application; the terms "comprising" and "having" and any variations thereof in the specification and claims of the present application and the description of the above drawings are intended to cover non-exclusive inclusion.

[0030] Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The occurrences of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is...

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Abstract

The invention belongs to the field of an electrical quantity transducer and relates to a power generator electrical quantity transducer based on Hart communication technology. A digital sampling unitis used for measuring data; an electric energy pulse output unit is connected with the digital sampling unit, and the electric energy pulse output unit is used for carrying out amplification and shaping and photoelectric isolation output on output electric energy pulse signals of the digital sampling unit; an FSK modulation and demodulation unit is connected with a main control unit, and the FSK modulation and demodulation unit is used for sending and receiving data of a Hart protocol; a current loop unit is connected with the main control unit and the FSK modulation and demodulation unit, andthe current loop unit is used for outputting 4-20mA current; a digital communication unit is connected with the main control unit, and the digital communication unit is used for sending and receivingdata of an RS485 electrical protocol; and a display unit is connected with the main control unit. The power generator electrical quantity transducer can solve the problems that two-way digital communication cannot be realized and cost is high.

Description

technical field [0001] The invention relates to the field of power transmitters, in particular to a generator power transmitter based on Hart communication technology. Background technique [0002] The power transmitter is a device that converts the measured power parameters (such as current, voltage, power, frequency, power factor, etc.) into DC current, DC voltage and isolates the output analog signal. It is widely used in major power plants. At present, the functions of transmitters for generator electrical quantity monitoring are often simplified. For example, active power transmitters can only output the corresponding changes in active power. With the continuous development of electronic technology, the wide application of digital measurement technology, The analog power transmitters born in the last century are constantly being eliminated. Power transmitters using digital measurement technology can often calculate other electrical parameters. For example, active power...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/34G01R19/25
Inventor 姜大海张克君孙友庆
Owner 南京南自电力仪表有限公司
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