CN104734365A - Electromagnetic induction type measuring circuit power supply method and device - Google Patents

Electromagnetic induction type measuring circuit power supply method and device Download PDF

Info

Publication number
CN104734365A
CN104734365A CN201310713980.5A CN201310713980A CN104734365A CN 104734365 A CN104734365 A CN 104734365A CN 201310713980 A CN201310713980 A CN 201310713980A CN 104734365 A CN104734365 A CN 104734365A
Authority
CN
China
Prior art keywords
current
electric energy
electric
induction
magnetic field
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
CN201310713980.5A
Other languages
Chinese (zh)
Inventor
王罡
邓佳翔
袁昕
刘日亮
邢云
王丽杰
王波
张晓勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Permanent Sharp Science And Technology Ltd Co Of Beijing Old Name For Arabian Countries In Middle East
State Grid Corp of China SGCC
State Grid Beijing Electric Power Co Ltd
Original Assignee
Permanent Sharp Science And Technology Ltd Co Of Beijing Old Name For Arabian Countries In Middle East
State Grid Corp of China SGCC
State Grid Beijing Electric Power Co Ltd
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 Permanent Sharp Science And Technology Ltd Co Of Beijing Old Name For Arabian Countries In Middle East, State Grid Corp of China SGCC, State Grid Beijing Electric Power Co Ltd filed Critical Permanent Sharp Science And Technology Ltd Co Of Beijing Old Name For Arabian Countries In Middle East
Priority to CN201310713980.5A priority Critical patent/CN104734365A/en
Publication of CN104734365A publication Critical patent/CN104734365A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00Arrangements for measuring currents or voltages or for indicating presence or sign thereof

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

The invention discloses a measuring circuit power supply method and device. The measuring circuit power supply method comprises the steps of obtaining the measurement current of a measured circuit, converting the measurement current of the measured circuit into electric energy and supplying power to the measured circuit through the electric energy obtained through conversion. Through the method and device, the problem that in the related technology, a measuring circuit power supply structure is complex is solved.

Description

Induction measuring circuit method of supplying power to and device
Technical field
The present invention relates to for electrical domain, in particular to the induction measuring circuit method of supplying power to of one and device.
Background technology
Non-contact electric current measurement at present more adopts induced current table, by outside or powered battery, in interim observation process effectively, when carrying out long-time uninterrupted monitoring current, these externally feds and battery powered working method dangerous unreliable, induction power supply can be responded to power taking by circuit-under-test and solve the electrical energy demands when long-time uninterrupted monitoring current.
In guarantor's electric process, owing to protecting the particularity of electricity work, can not carry out transforming to former supply line and change, can not wiring be carried out.So conventional methods cannot be used to carry out monitoring load current.
Apply induction power supply technique and can reach guarantor electrician work to the requirement of load current monitoring and standard.Adopt the non-contact electric current measurement of induction power supply technique to install at any time to remove at any time, be not subject to the restriction in condition and place, without the need to wiring, without the need to external power source.
In Real-Time Monitoring, owing to requiring uninterruptedly to measure circuit, the requirement that monitoring supply line meets electric current can be reached, what mainly adopt in monitoring current at present has two kinds of modes, a kind of is by accessing the CT(current transformer be arranged in electricity consumption loop) measure electric current, its work electricity consumption uses power distribution cabinet line related, another kind of mainly artificial use is measured with the ammeter of battery, these two kinds of modes respectively have shortcoming, access CT is measured to the mode of electric current, mounting means cannot meet the requirement ensureing electricity consumption, plug and play cannot be accomplished, the object dismantled at any time.And the mode of manual measurement electric current, battery power cannot meet the requirement of Real-Time Monitoring electric current, cannot comprehensive monitoring electric current.
Therefore for this situation, apply induction power supply technique and can solve the interim long-time power consumption problem measuring electric current.
There is the problem of electric energy loss waste for measuring circuit in correlation technique, not yet propose effective solution at present.
Summary of the invention
Main purpose of the present invention is to provide a kind of induction measuring circuit method of supplying power to and device, to solve the problem that measuring circuit in correlation technique exists electric energy loss waste.
To achieve these goals, according to an aspect of the present invention, a kind of induction measuring circuit method of supplying power to is provided.This measuring circuit method of supplying power to comprises: the measurement electric current obtaining tested loop; Be electric energy by electromagnetic induction by the measurement current conversion in described tested loop; By the electric energy that is converted to described tested loop power supply.
Further, be that electric energy comprises by electromagnetic induction by the measurement current conversion in described tested loop: detect the variation magnetic field measured electric current and produce; Electric energy is converted to by described variation magnetic field.
Further, be converted to electric energy by described variation magnetic field and comprise: by induction coil, described variation magnetic field is responded to, obtain induced current; Described induced current is converted to the electric energy needed for described tested loop power supply by electric current finishing circuit.
Further, responded to described variation magnetic field by induction coil, after obtaining induced current, described measuring circuit method of supplying power to also comprises: measure described faradic size by current measurement circuit.
To achieve these goals, according to a further aspect in the invention, a kind of induction measuring circuit electric supply installation is provided.This measuring circuit electric supply installation comprises: acquiring unit, for obtaining the measurement electric current in tested loop; Converting unit, for being electric energy by electromagnetic induction by the measurement current conversion in described tested loop; Power supply unit, for the electric energy by being converted to described tested loop power supply.
Further, described converting unit is used for by electromagnetic induction is electric energy by the measurement current conversion in described tested loop.
Further, described converting unit comprises: detection module, for detecting the variation magnetic field measured electric current and produce; Modular converter, for being converted to electric energy by described variation magnetic field.
Further, described detection module is used for being responded to described variation magnetic field by induction coil, obtains induced current, and described modular converter is used for described induced current being converted to electric energy needed for described tested loop power supply by electric current finishing circuit.
Further, described induction measuring circuit electric supply installation also comprises: measuring unit, for being responded to described variation magnetic field by induction coil, after obtaining induced current, measures described faradic size by current measurement circuit.
By the present invention, adopt the measurement electric current obtaining tested loop; Be electric energy by the measurement current conversion in described tested loop; By the electric energy that is converted to described tested loop power supply, because the electric energy that can be obtained by the measurement current conversion in tested loop is to described tested loop power supply, by induction coil, described variation magnetic field is being responded to, after obtaining induced current, measure described faradic size by current measurement circuit, solve the problem that measuring circuit in correlation technique exists electric energy loss waste.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram of the induction measuring circuit electric supply installation according to the embodiment of the present invention; And
Fig. 2 is the flow chart of the induction measuring circuit method of supplying power to according to the embodiment of the present invention.
Embodiment
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
Fig. 1 is the schematic diagram of the induction measuring circuit electric supply installation according to the embodiment of the present invention.
As shown in Figure 1, this device comprises:
Acquiring unit 10, for obtaining the measurement electric current in tested loop.
The measurement current conversion in described tested loop is electric energy for by electromagnetic induction being electric energy by the measurement current conversion in described tested loop by converting unit 20.
Power supply unit 30, for the electric energy by being converted to described tested loop power supply.
Measuring unit 40, for being responded to described variation magnetic field by induction coil, after obtaining induced current, measures described faradic size by current measurement circuit.
By the induction measuring circuit electric supply installation of the embodiment of the present invention, adopt the measurement electric current obtaining tested loop.Be electric energy by the measurement current conversion in described tested loop.By the electric energy that is converted to described tested loop power supply, because the electric energy that can be obtained by the measurement current conversion in tested loop is to described tested loop power supply, by induction coil, described variation magnetic field is being responded to, after obtaining induced current, measure described faradic size by current measurement circuit, solve measuring circuit electric power-feeding structure in correlation technique and compare the problem of more complicated.
In one embodiment of the invention, described converting unit is used for by electromagnetic induction is electric energy by the measurement current conversion in described tested loop.
In one embodiment of the invention, described converting unit comprises: detection module, for detecting the variation magnetic field measured electric current and produce.Modular converter, for being converted to electric energy by described variation magnetic field.
In one embodiment of the invention, described detection module is used for being responded to described variation magnetic field by induction coil, obtain induced current, described modular converter is used for described induced current being converted to electric energy needed for described tested loop power supply by electric current finishing circuit.
In one embodiment of the invention, described measuring circuit electric supply installation also comprises: measuring unit, for being responded to described variation magnetic field by induction coil, after obtaining induced current, measures described faradic size by current measurement circuit.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
Fig. 2 is the flow chart of the induction measuring circuit method of supplying power to according to the embodiment of the present invention.
As shown in Figure 2, the method comprises:
Step S101, obtains the measurement electric current in tested loop.
The measurement current conversion in described tested loop is electric energy by step S102.
Step S103, by the electric energy that is converted to described tested loop power supply.
Step S104, is being responded to described variation magnetic field by induction coil, after obtaining induced current, measures described faradic size by current measurement circuit.
By the measuring circuit method of supplying power to of the embodiment of the present invention, adopt the measurement electric current obtaining tested loop.Be electric energy by the measurement current conversion in described tested loop.By the electric energy that is converted to described tested loop power supply, because the electric energy that can be obtained by the measurement current conversion in tested loop is to described tested loop power supply, by induction coil, described variation magnetic field is being responded to, after obtaining induced current, measure described faradic size by current measurement circuit, solve measuring circuit electric power-feeding structure in correlation technique and compare the problem of more complicated.
In one embodiment of the invention, be that electric energy comprises by the measurement current conversion in described tested loop: be electric energy by electromagnetic induction by the measurement current conversion in described tested loop.
In one embodiment of the invention, be that electric energy comprises by electromagnetic induction by the measurement current conversion in described tested loop: detect the variation magnetic field measured electric current and produce.Electric energy is converted to by described variation magnetic field.
In one embodiment of the invention, be converted to electric energy by described variation magnetic field and comprise: by induction coil, described variation magnetic field is responded to, obtain induced current.Described induced current is converted to the electric energy needed for described tested loop power supply by electric current finishing circuit.
In one embodiment of the invention, responded to described variation magnetic field by induction coil, after obtaining induced current, described measuring circuit method of supplying power to also comprises: measure described faradic size by current measurement circuit.
The measuring circuit method of supplying power to of the embodiment of the present invention have employed the current measurement techniques of induction power supply, when measurement of inductance electric current, measuring circuit needs to consume electric energy and carries out current measurement work, gather related data, while measurement electric current, by electromagnetic induction technology, carry out electromagnetic field by the electric current in tested loop and change out electric energy needed for measuring circuit, solve the power consumption problem of measuring circuit, the current measurement techniques of the induction power supply of employing that Here it is.
Induction power supply meets the electric energy uninterruptedly measured needed for electric current, and the volume decreasing measurement mechanism adds the scope of application of current measuring device.
The measuring circuit method of supplying power to of the embodiment of the present invention adopts the current measurement techniques of induction power supply, when measuring electric current, tested electric current by measure magnetic field time, the magnetic field that can change, measuring circuit according to convert magnetic field induction go out change electric current.
In the measuring circuit method of supplying power to of the embodiment of the present invention, using use coil-induced go out the electric current that produces of magnetic field as the electric current of measuring circuit for measuring circuit work, induction power supply that Here it is.The electric current of electromagnetic induction is change, needs the arrangement carrying out interlock circuit, really could become the power supply of measuring circuit.
Induction supply current is measured and is mainly divided into, induction coil part, current measurement circuit part, electric current finishing circuit part.
Induction supplying measure current technique is owing to have employed induction supply power mode, do not limit by too much mounting condition when measuring electric current, only need to be arranged on tested cable, therefore it is applied widely, be applicable to the environment of unartificial Real-Time Monitoring electric current, energy consumption monitoring can be widely used in, for monitoring systems such as monitoring power distributions.
The measuring circuit method of supplying power to of the embodiment of the present invention has following characteristics:
Contactless electromagnetic induction power taking;
Non-contact current measuring.
Electromagnetic induction technology is mainly applied in current measurement, realize the mode reaching non-contact measurement, the reliance security measured improves greatly, but be limited to the powerup issue of measuring circuit, therefore range of application is little a lot, the application especially in monitoring system is just very limited, measures on the basis of electric current at electromagnetic induction, the current conversion of induction is become the power supply of measuring circuit, solve the application restriction of non-contact measurement.
Induction supplying measure current technique is primarily of induction coil part, and current measurement circuit part, three major parts such as electric current finishing circuit part form.
The main effect of induction coil part produces induced current, when tested electric current by time, the magnetic field induced produces induced current in coil.
Faradic size is measured in the main effect of current measurement circuit part, after there is induced current, and the size of current measurement circuit computation and measurement electric current.
The Main Function of electric current finishing circuit part is that induced current is arranged the operating current become needed for current measurement circuit.
By the embodiment of the present invention, achieve contactless induction supplying measure current technique and contactless electromagnetic induction is powered.And it is by the embodiment of the present invention, advanced technology, safe and reliable; Overall volume is little, self-powered; Install simple, plug and play; Be widely used, in theory applicable all places needing non-contact current measuring; Do not change existing equipment, existing equipment basis completes collection; Isolation and overvoltage crowbar, reliability is high, prevents from causing interference to by electric line, forms accident potential; Achieve contactless induction supplying measure electric current; Achieve electromagnetism to power; Electromagnetism is powered and can be met the electrical energy demands of measurement current circuit.
It should be noted that, can perform in the computer system of such as one group of computer executable instructions in the step shown in the flow chart of accompanying drawing, and, although show logical order in flow charts, but in some cases, can be different from the step shown or described by order execution herein.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (6)

1. an induction measuring circuit method of supplying power to, is characterized in that, comprising:
Obtain the measurement electric current in tested loop;
Be electric energy by electromagnetic induction by the measurement current conversion in described tested loop;
By the electric energy that is converted to described tested loop power supply; And
By induction coil, described variation magnetic field is being responded to, after obtaining induced current, measuring described faradic size by current measurement circuit.
2. induction measuring circuit method of supplying power to according to claim 1, is characterized in that, is that electric energy comprises by electromagnetic induction by the measurement current conversion in described tested loop:
Detect the variation magnetic field measured electric current and produce; And
Electric energy is converted to by described variation magnetic field.
3. induction measuring circuit method of supplying power to according to claim 2, is characterized in that, be converted to electric energy comprise by described variation magnetic field:
By induction coil, described variation magnetic field is responded to, obtain induced current; And
Described induced current is converted to the electric energy needed for described tested loop power supply by electric current finishing circuit.
4. an induction measuring circuit electric supply installation, is characterized in that,
Acquiring unit, for obtaining the measurement electric current in tested loop;
Converting unit, for being electric energy by electromagnetic induction by the measurement current conversion in described tested loop;
Power supply unit, for the electric energy by being converted to described tested loop power supply; And
Measuring unit, for being responded to described variation magnetic field by induction coil, after obtaining induced current, measures described faradic size by current measurement circuit.
5. induction measuring circuit electric supply installation according to claim 4, it is characterized in that, described converting unit comprises:
Detection module, for detecting the variation magnetic field measured electric current and produce; And
Modular converter, for being converted to electric energy by described variation magnetic field.
6. induction measuring circuit electric supply installation according to claim 5, it is characterized in that, described detection module is used for being responded to described variation magnetic field by induction coil, obtain induced current, described modular converter is used for described induced current being converted to electric energy needed for described tested loop power supply by electric current finishing circuit.
CN201310713980.5A 2013-12-20 2013-12-20 Electromagnetic induction type measuring circuit power supply method and device Pending CN104734365A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310713980.5A CN104734365A (en) 2013-12-20 2013-12-20 Electromagnetic induction type measuring circuit power supply method and device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310713980.5A CN104734365A (en) 2013-12-20 2013-12-20 Electromagnetic induction type measuring circuit power supply method and device

Publications (1)

Publication Number Publication Date
CN104734365A true CN104734365A (en) 2015-06-24

Family

ID=53457943

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310713980.5A Pending CN104734365A (en) 2013-12-20 2013-12-20 Electromagnetic induction type measuring circuit power supply method and device

Country Status (1)

Country Link
CN (1) CN104734365A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1107622A (en) * 1993-06-10 1995-08-30 Gec阿尔斯托姆T&D公司 Device for supplying a voltage to an electronic circuit in particular an electronic circuit associated with a current sensor disposed on an electrical line
CN2339994Y (en) * 1998-05-09 1999-09-22 华中理工大学 220 KV active optic-fiber current transformer
CN201726122U (en) * 2010-04-21 2011-01-26 王春梅 Self-powered microcomputer protector capable of fetching electricity on basis of high-voltage current transformer
CN203014501U (en) * 2012-12-20 2013-06-19 四川富谊智能电力技术有限公司 Wireless data acquisition apparatus having self-powered function

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1107622A (en) * 1993-06-10 1995-08-30 Gec阿尔斯托姆T&D公司 Device for supplying a voltage to an electronic circuit in particular an electronic circuit associated with a current sensor disposed on an electrical line
CN2339994Y (en) * 1998-05-09 1999-09-22 华中理工大学 220 KV active optic-fiber current transformer
CN201726122U (en) * 2010-04-21 2011-01-26 王春梅 Self-powered microcomputer protector capable of fetching electricity on basis of high-voltage current transformer
CN203014501U (en) * 2012-12-20 2013-06-19 四川富谊智能电力技术有限公司 Wireless data acquisition apparatus having self-powered function

Similar Documents

Publication Publication Date Title
CN202929077U (en) Electricity stealing resistant device and its system
CN105074480A (en) Current transformer system with sensor CT and generator CT separately arranged in parallel in electric power line, and integrated system for controlling same in wireless communications network
CN207611086U (en) Multiaxis magneto-resistive current measuring apparatus and system
CN103872712A (en) Control guiding device, charging socket, electric automobile charging device and system
CN204144912U (en) A kind of high voltage generating station electrical verification alarm block sytem
CN106814243A (en) City cable line-to-ground circulation on-Line Monitor Device
CN104459413A (en) Multi-loop electricity monitoring device capable of achieving intelligent household electricity utilization management
CN203798898U (en) High-voltage electriferous display locking device
CN109975595A (en) A kind of leakage current sensor and device of anti-power frequency magnetic field interference
CN202837423U (en) Wireless GPRS wind power power grid electric energy quality detection device based on DSP and ARM
CN204228878U (en) A kind of cable sheath grounding circulation detection system
CN205067631U (en) Wireless detection device of female row of cubical switchboard
CN104300515A (en) Live part verification information recognition and intelligent protection device for transformer substation
Ranjith et al. Futuristic smart energy meter-design based on embedded perspective
CN204373809U (en) A kind of watchband type passive and wireless temperature measurement on-line device
CN104734365A (en) Electromagnetic induction type measuring circuit power supply method and device
CN203178469U (en) Portable transmitter verification meter
CN104734366A (en) Measuring circuit power supplying method and device
CN104319896A (en) High-voltage electrified display locking method, device and system
CN201876485U (en) Electronic transformer based on intelligent conditioning unit
CN204633477U (en) A kind of precision intelligence alternating current-direct current distributing monitoring system
CN104865427B (en) A kind of transient state up-flow generating means of accurate high current
CN103323668A (en) Spacecraft power source controller bus electromagnetic compatibility conducted emission frequency domain testing method
CN107589331B (en) Relay protection testing device
CN203606421U (en) Improved current transformer

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20150624

RJ01 Rejection of invention patent application after publication