CN102004185A - Three-phase intelligent energy meter - Google Patents

Three-phase intelligent energy meter Download PDF

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Publication number
CN102004185A
CN102004185A CN2010105707720A CN201010570772A CN102004185A CN 102004185 A CN102004185 A CN 102004185A CN 2010105707720 A CN2010105707720 A CN 2010105707720A CN 201010570772 A CN201010570772 A CN 201010570772A CN 102004185 A CN102004185 A CN 102004185A
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CN
China
Prior art keywords
power
voltage
current
chip microcomputer
phase
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2010105707720A
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Chinese (zh)
Inventor
王淑芝
Original Assignee
王淑芝
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 王淑芝 filed Critical 王淑芝
Priority to CN2010105707720A priority Critical patent/CN102004185A/en
Publication of CN102004185A publication Critical patent/CN102004185A/en
Pending legal-status Critical Current

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Abstract

The invention provides a three-phase intelligent energy meter, which is mainly characterized in that: an AT89S51 singlechip is taken as a core, and the three-phase voltage, current and power effective value of a power grid are measured by an energy metering chip CS5460ABC; the voltage of the power grid is converted by a voltage transformer and is input into a singlechip, and the current of the power grid passes through a current transformer and is input into the singlechip; the singlechip performs communication through a serial peripheral interface (SPI); and apparent power, active power and a power factor are calculated. The three-phase intelligent energy meter has the advantages of high integration degree, strong convertibility and the like. The system becomes an independent system, and also can communicate with an upper computer, so the networked management is realized, power supply enterprise management layers are facilitated to control power consumption conditions of enterprises, and the system has important significance for safety production and energy conservation and emission reduction.

Description

The three-phase intelligent electric energy meter
Technical field
The invention belongs to a kind of electric energy meter that measures usefulness, particularly a kind of three-phase intelligent electric energy meter.
Background technology
Along with the development of electric utility, people more and more pay attention to effective use of electric energy, and power supply department is more and more to the electricity consumption examination parameter of electrical network simultaneously, the induction type electric energy meter function singleness, and accuracy is low, frequency narrow application range etc.
Summary of the invention
The objective of the invention is the deficiency that exists in the above-mentioned technology, a kind of enterprise's many multiplying powers electric energy meter that is applicable to is provided, in the time of can be according to the business electrical peak, at ordinary times, during paddy, the design load of day part is calculated the total power consumption of user and the power consumption of day part, can measure A, B, each phase voltage of C, electric current, applied power, active power, reactive power, power factor etc.
The object of the present invention is achieved like this, with the AT89S51 single-chip microcomputer is core, it is characterized in that, to the electrical network voltage in three phases, electric current and power effective value are measured by electric energy computation chip CS5460ABC, and the voltage of electrical network is changed through voltage transformer (VT), be input in the single-chip microcomputer, the electric current of electrical network is input in the single-chip microcomputer through current transformer, and single-chip microcomputer communicates by a SPI mouth.Calculate applied power, active power, power factor.
The invention has the beneficial effects as follows to have integrated degree height, advantage such as plasticity is strong.System establishes one's own system on the one hand, also can with upper machine communication, thereby realized network management, be convenient to the power pack enterprise management level and control the business electrical situation in real time, for safety in production, energy-saving and emission-reduction have significant meaning.
Description of drawings:
Fig. 1 asks system architecture block scheme of the present invention
Fig. 2 is the current and voltage signals Acquisition Circuit
Embodiment:
As Fig. 1, known to Fig. 2, three-phase voltage, three-phase current, three-phase PT, three-phase CT,, by CS5460A, inputing to Single Chip Microcomputer (SCM) system, Single Chip Microcomputer (SCM) system shows after carrying out computing to the received signal.Also can transfer data to host computer by communication interface.And electric power source pair of module single-chip microcomputer and electric current, voltage collection circuit CS5460A powers.Adopt the voltage/current mutual inductor to make the sampling device, in order to measure accurately the serviceable life that can improve device.Adopt voltage, the surge protection of current channel.The CS5460A interface chip links to each other with the computing machine serial line interface.For protection device adopts light-coupled isolation between single-chip microcomputer and CS5460A.CS5460A can be used for measuring the effective value of alternating voltage, the effective value of alternating current and active power value, and reactive power and power factor can be calculated by the program of controller and realize.
The advantages such as this system has integrated degree height, and plasticity is strong. System establishes one's own system on the one hand, also can with upper machine communication, thereby realized network management, be convenient to the power pack enterprise management level and control in real time the business electrical situation, for safety in production, energy-saving and emission-reduction have great meaning.

Claims (2)

1. a three-phase intelligent electric energy meter is a core with the AT89S51 single-chip microcomputer, it is characterized in that, by electric energy computation chip CS5460ABC to the electrical network voltage in three phases, electric current and power effective value are measured, and the voltage of electrical network is changed through voltage transformer (VT), are input in the single-chip microcomputer, the electric current of electrical network, be input in the single-chip microcomputer through current transformer, single-chip microcomputer communicates by a SPI mouth, calculates applied power, active power, power factor.
2. a kind of three-phase intelligent electric energy meter according to claim 1 is characterized in that three-phase voltage, three-phase current, three-phase PT, three-phase CT,, pass through CS5460A, input to Single Chip Microcomputer (SCM) system, Single Chip Microcomputer (SCM) system shows after carrying out computing to the received signal; Also can transfer data to host computer by communication interface; And electric power source pair of module single-chip microcomputer and electric current; voltage collection circuit CS5460A powers; adopt the voltage/current mutual inductor to make the sampling device; adopt voltage; the surge protection of current channel; the CS5460A interface chip links to each other with the computing machine serial line interface; for protection device adopts light-coupled isolation between single-chip microcomputer and CS5460A; CS5460A can be used for measuring the effective value of alternating voltage; the effective value of alternating current and active power value, reactive power and power factor can be calculated by the program of controller and realize.
CN2010105707720A 2010-12-03 2010-12-03 Three-phase intelligent energy meter Pending CN102004185A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010105707720A CN102004185A (en) 2010-12-03 2010-12-03 Three-phase intelligent energy meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010105707720A CN102004185A (en) 2010-12-03 2010-12-03 Three-phase intelligent energy meter

Publications (1)

Publication Number Publication Date
CN102004185A true CN102004185A (en) 2011-04-06

Family

ID=43811711

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010105707720A Pending CN102004185A (en) 2010-12-03 2010-12-03 Three-phase intelligent energy meter

Country Status (1)

Country Link
CN (1) CN102004185A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102495276A (en) * 2012-01-04 2012-06-13 山东电力研究院 Measurement method adopting high-voltage electrical power consumption testing device
CN104280608A (en) * 2014-10-10 2015-01-14 华立仪表集团股份有限公司 Metering chip of ammeter and ammeter
CN110068740A (en) * 2019-05-22 2019-07-30 大连民族大学 A kind of more Electric Power Parameter Detections

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102495276A (en) * 2012-01-04 2012-06-13 山东电力研究院 Measurement method adopting high-voltage electrical power consumption testing device
CN102495276B (en) * 2012-01-04 2014-02-26 山东电力研究院 Measurement method adopting high-voltage electrical power consumption testing device
CN104280608A (en) * 2014-10-10 2015-01-14 华立仪表集团股份有限公司 Metering chip of ammeter and ammeter
CN110068740A (en) * 2019-05-22 2019-07-30 大连民族大学 A kind of more Electric Power Parameter Detections

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C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20110406