CN101937764B - Active photoelectric current transformermutual inductor by mixed power supply of ultrasound and induction - Google Patents

Active photoelectric current transformermutual inductor by mixed power supply of ultrasound and induction Download PDF

Info

Publication number
CN101937764B
CN101937764B CN2010102823537A CN201010282353A CN101937764B CN 101937764 B CN101937764 B CN 101937764B CN 2010102823537 A CN2010102823537 A CN 2010102823537A CN 201010282353 A CN201010282353 A CN 201010282353A CN 101937764 B CN101937764 B CN 101937764B
Authority
CN
China
Prior art keywords
power supply
energy
current
ultrasonic
induction
Prior art date
Application number
CN2010102823537A
Other languages
Chinese (zh)
Other versions
CN101937764A (en
Inventor
何文林
何月
高乃奎
刘晓辉
Original Assignee
西安交通大学
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 西安交通大学 filed Critical 西安交通大学
Priority to CN2010102823537A priority Critical patent/CN101937764B/en
Publication of CN101937764A publication Critical patent/CN101937764A/en
Application granted granted Critical
Publication of CN101937764B publication Critical patent/CN101937764B/en

Links

Abstract

The invention discloses an active photoelectric current transformermutual inductor by the mixed power supply of ultrasound and induction, comprising a mixed power supply system and a current measuring system. The mixed power supply system mainly adopts induction power supply and realizes backup power supply with ultrasonic waves when induction energy is insufficient., the induction power supply comprises a An energy-taking coil and a primaryonce induction power sourcesupply processing unit are combined for the induction power supply, and the energy-taking coil acquires power supply energy from a primaryonce current bus., the backup power supply comprises aAn ultrasonic driving power sourcesupply, an ultrasonic energy-transferring power supply unit and an ultrasonic energy-transferring power sourcesupply processing unit are combined for the backup power supply, and transfers power supply energy is transferred by utilizing ultrasonic waves., and aAn ultrasonic wave driving power sourcesupply acquires bus current information from a secondary processing system of a current measuring system, judges the energy magnitudevalue of the induction power supply, controls and drives the ultrasonic waves for the backup power supply and realizes the selection and the switch of the main and the backup power suppliesy. The ultrasonic energy-transferring power sourcesupply processing unit and the primaryonce induction power sourcesupply processing unit finish energy storage, current measurement and power supply to a photoelectric transmission system through an energy storage power sourcesupply.

Description

A kind of ultrasonic active photoelectric current inductor that mixes energy supply with induction
Technical field
The present invention relates to a kind of active photoelectric type current transformer.
Background technology
Aspects such as the electric energy metrical of current transformer in intelligent grid, safeguard protection, power scheduling play crucial effect, are nucleus equipments of intelligent grid.Fast development along with intelligent grid; The particularly development of EHV transmission; Electric power system to current transformer require increasingly high; Traditional electromagnetic current transducer because have that frequency response is low, the multiple factors such as poor reliability of High-Voltage Insulation ability, ferromagnetic saturated, long-time running, can't satisfy the demand for development of electric power system and intelligent grid.Exploitation High-Voltage Insulation ability is strong, wide frequency range, New type of current instrument transformer that linear properties is good have been pressing for of electric power system and intelligent grid development.Photoelectric current inductor OCT has the certainty of measurement height, dynamic range is big, frequency response range is wide, anti-electromagnetic interference performance is good.Volume is little in light weight, low price, and the unified interface standard with intelligent digital equipment is arranged.In intelligent grid, be with a wide range of applications, become the trend of high-tension current inductor gradually.Photoelectric current inductor mainly contains pure optical current mutual inductor (passive photo-electricity mutual-inductor) and two kinds of forms of photoelectric mixed-mode current transformer (active photo-electricity mutual-inductor); The performance of pure optical current mutual inductor receives the influence of factors such as ambient temperature and vibrations very big; The poor stability of performance; Perplex its practicability, also do not got into the practicability stage at present; Active photoelectric current inductor utilizes the electromagnetic measurement principle of low power consumption current instrument transformer (LPCT) or Rogowski coil to measure electric current; Utilize Fibre Optical Communication Technology transmission current metrical information, overcome the technical barrier of the poor stability of passive photoelectric current inductor.Active photoelectric current inductor good long term stability makes it obtain fast development with accurate certainty of measurement, has got into the practical stage at present.But it is the main difficult technical of the active photoelectric current inductor development of puzzlement that the on high-tension side current measurement of active photoelectric current inductor, data processing and optoelectronic information transmission system etc. need power supply, power supply.The power supply of active photoelectric current inductor mainly contains " power supply of primary current electromagnetic induction ", " laser energy supply " and supply power modes such as " ultrasonic wave energy supplies " at present." ultrasonic wave energy supply " power supply energy is bigger, can satisfy the requirement of power supply energy, but the life-span of long-term continuous operation and the requirement that reliability can't satisfy electric power system; There is the power supply energy shortage in " power supply of primary current electromagnetic induction " when primary current is smaller; Power supply instability; And can form can't work " power supply dead band ", and exist the power supply energy excessive when primary current is very big again during with short circuit, circuit is produced the technical barrier of impact; Though laser energy supply power supply energy stabilization; Be well positioned to meet the stability requirement of power supply; But the power supply energy is smaller; Energy-conservation and anti-interference requirement to measurement and photo transmission system is very high, and too expensive, and bad change of the performance of long-time running and life-span all can't be satisfied the requirement of electric power system.The high-pressure side energy supply of active photoelectric current inductor is the core technology difficult problem of its practicability of puzzlement.
Summary of the invention
To the existing problem of active photoelectric current inductor high-voltage side energy supply; The invention provides a kind of active photoelectric current inductor of ultrasonic and induction hybrid mode energy supply; With a bus current electromagnetic induction power supply is main; When the energy shortage of inductive power supply, utilize the ultrasonic wave energy supply to carry out the reserve power supply, not enough with the useful life that overcomes " power supply dead band " that primary current electromagnetic induction energy supply exists, ultrasonic wave power supply, the laser energy supply costs an arm and a leg and defective such as life-span deficiency.
For reaching above purpose, the present invention takes following technical scheme to be achieved:
A kind of ultrasonic active photoelectric current inductor that mixes energy supply with induction comprises a mixed power supply system, a current measurement system; Said mixed power supply system comprises primary current inductive power supply subsystem, accumulation power supply unit and ultrasonic wave reserve energy supply subsystem;
Ultrasonic wave reserve energy supply subsystem comprise the ultrasonic wave driving power unit of low-pressure side, the on high-tension side ultrasonic biography that is connected with accumulation power supply can power subsystem, being connected that ultrasonic wave driving power unit and the ultrasonic biography ultrasonic wave between can power subsystem passes can power supply unit, the control input of ultrasonic wave driving power unit connects the output of the secondary treatment system in the current measurement system; Obtain bus current information one time, and judge the energy size of inductive power supply, carry out the reserve power supply, realize the selection and the switching of main reserve power supply in order to control ultrasonic wave driving power generation ultrasonic wave; A ultrasonic induction power supply processing unit that passes ability power supply processing unit and primary current inductive power supply subsystem all is electrically connected the accumulation power supply unit, through accumulation power supply completion energy storage and to current measurement in the current measurement system and the power supply of photoelectricity transmission unit.
Said current measurement system comprises optical fiber, obtains current measurement information and low power consumption current instrument transformer that is electrically connected with current measurement and optoelectronic information transmission unit or Rogowski coil from bus; Current measurement and optoelectronic information transmission unit are handled with electric light current measurement information and are changed; And be sent to metrical information from the high-pressure side secondary treatment system of low-pressure side through optical fiber; Secondary treatment system is realized the measurement to high-tension current through opto-electronic conversion and processing reduction current information.
In the such scheme; Primary current inductive power supply subsystem comprises that induction power supply processing unit and connected is got can coil; Get and can obtain the power supply energy from the primary current bus through electromagnetic induction by coil, an induction power supply processing unit converts the AC energy of induction into direct current energy and supplies with the accumulation power supply unit.Wherein, what get the ability coil is current bus bar punching structure once, and secondary has two electromagnetic induction coils, and one is the inductive power supply coil, and another is the inductive energy control coil; Inductive power supply coil and inductive energy control coil all are electrically connected the induction power supply processing unit one time; The supply power voltage size that this unit monitors inductive power supply coil obtains; Judge the conducting and the disconnection of control inductive energy control coil, the sense of control power supply energy size that coil obtains of should supplying power according to voltage swing.One time the induction power supply processing unit is transformed into direct current to the alternating current that the inductive power supply coil of getting the ability coil obtains to current measurement and the power supply of optoelectronic information transmission unit through the AC-DC supply convertor.
Described ultrasonic wave passes and can include the electroacoustic transducer that links to each other with ultrasonic wave driving power unit by power supply unit; The ultrasonic emitting end face of this electroacoustic transducer is fixedly connected on the low-pressure side end face of an insulating rod; It is fixedly connected that the high-pressure side end face of insulating rod and the ultrasonic wave of acoustic-electrical transducer receive end face, and the output of acoustic-electrical transducer is electrically connected to ultrasonic wave and passes ability power supply processing unit.
Described ultrasonic wave driving power unit comprises a ultrasonic-frequency power supply and an energy supply control module; Ultrasonic-frequency power supply links to each other with the electroacoustic transducer that ultrasonic wave passes the ability power supply unit; Be used to drive electroacoustic transducer and produce ultrasonic wave, energy supply control module links to each other with the secondary treatment system of the current measurement system of low voltage side, obtains bus current information one time from the secondary treatment system of current measurement; And the energy of judging inductive power supply is big or small, carries out the reserve power supply to drive electroacoustic transducer generation ultrasonic wave.
Described ultrasonic biography can comprise coupling inductance, transformer and rectifier filter circuit by the power supply processing unit; The acoustic-electrical transducer that ultrasonic wave passes the ability power supply unit connects coupling inductance and transformer; The output of transformer connects rectifier filter circuit; The high-frequency alternating current that produces the reserve of ultrasonic wave energy supply power supply converts direct current to, supplies with the accumulation power supply unit.
Described accumulation power supply comprise a storage capacitor, DC-DC conversion pressurizer, respectively with induction power supply processing unit, ultrasonic biography can the power supply processing unit output two unilateral diodes or the door that are connected, through capacitance energy storage and DC-DC conversion voltage stabilizing realization current measurement and photo transmission system fault-free are supplied power continuously.
The present invention compared with prior art has the following advantages:
1) do not receive the big or small restriction of the bus current in high-pressure side, " the power supply dead band " that overcome inductive power supply can provide very stable and continuous power supply energy.
2) the power supply energy stabilization can provide bigger power supply energy, current measurement and photo transmission system energy-conservation is required low, has strengthened the signal strength signal intensity of current measurement and photo transmission system, has improved the antijamming capability of instrument transformer.
3) the electric power system employing is main with the primary current inductive power supply, when the induced electricity quantity not sufficient, carries out the main spare mode that reserve is supplied power with the ultrasonic wave energy supply, and is complementary and dual subsequent use each other, improved the reliability and the long term operation stability of electric power system.
5) utilize low power consumption current instrument transformer (LPCT) or Rogowski coil to measure electric current, avoided factors such as ambient temperature and vibration, improved the measuring accuracy and the long term operation stability of instrument transformer the influence of instrument transformer long term operation stability.
Description of drawings
Fig. 1 is the ultrasonic active photoelectric current inductor structured flowchart that mixes energy supply with induction of the present invention.
Fig. 2 is the structured flowchart of the primary current inductive power supply subsystem among Fig. 1.
Fig. 3 is the structured flowchart of the ultrasonic wave driving power among Fig. 1.
Fig. 4 is the structure chart that the ultrasonic wave among Fig. 1 passes the ability power supply unit.
Fig. 5 is the ultrasonic structured flowchart that passes ability power supply processing unit among Fig. 1.
Fig. 6 is the structured flowchart of the accumulation power supply unit among Fig. 1.
Fig. 7 is current measurement and a kind of functional block diagram of optoelectronic information transmission unit among Fig. 1.
Fig. 8 is a kind of functional block diagram of " aftertreatment subsystem " among Fig. 1.
Fig. 9 is current measurement and the another kind of functional block diagram of optoelectronic information transmission unit among Fig. 1.
Figure 10 is the another kind of functional block diagram of " aftertreatment subsystem " among Fig. 1.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done further detailed description.
With reference to figure 1, a kind of ultrasonic active photoelectric current inductor that mixes energy supply with induction comprises a mixed power supply system, a current measurement system; Said mixed power supply system comprises primary current inductive power supply subsystem, accumulation power supply unit and ultrasonic wave reserve energy supply subsystem; Electric power system is main with a bus current electromagnetic induction energy supply, when the energy shortage of inductive power supply, utilizes the ultrasonic wave energy supply to carry out the reserve power supply.
Ultrasonic wave reserve power supply subsystem comprise the ultrasonic wave driving power unit of low-pressure side, the on high-tension side ultrasonic biography that is connected with accumulation power supply can the power supply processing unit, being connected that ultrasonic wave driving power unit and the ultrasonic biography ultrasonic wave between can the power supply processing unit passes can power supply unit, the output of the secondary treatment system in the control input connection current measurement system of ultrasonic wave driving power unit; Obtain bus current information one time; Utilize current information to judge the energy size of inductive power supply, when declaring the energy shortage of knowing inductive power supply, control ultrasonic wave driving power gets into operating state; Produce ultrasonic wave and carry out the reserve power supply, realize the selection and the switching of main reserve power supply; Ultrasonic biography ability power supply processing unit and an induction power supply processing unit all are electrically connected the accumulation power supply unit, through accumulation power supply completion energy storage and to current measurement in the current measurement system and the power supply of photoelectricity transmission unit.
Current measurement system comprises optical fiber, obtains current measurement information and low power consumption current instrument transformer that is electrically connected with current measurement and optoelectronic information transmission unit or Rogowski coil from bus; Current measurement and optoelectronic information transmission unit are handled with electric light current measurement information and are changed; And be sent to metrical information from the high-pressure side secondary treatment system of low-pressure side through optical fiber; Secondary treatment system is realized the measurement to high-tension current through opto-electronic conversion and processing reduction current information.
With reference to figure 2; Primary current inductive power supply subsystem is formed by getting ability coil and an induction power supply processing unit; Utilization is got and can be obtained the power supply energy from primary current bus electromagnetic induction by coil; Get and can be electrically connected an induction power supply processing unit by coil, this power supply processing unit converts the AC energy of getting the induction of ability coil into direct current energy and supplies with accumulation power supply.What get the ability coil is current bus bar punching structure once, and secondary has 2 electromagnetic induction coils, and one is the inductive power supply coil, and another is the inductive energy control coil.Obtain the power supply energy with the inductive power supply coil through electromagnetic induction, regulate with the sense of control coil of should supplying power big or small through the power supply energy that electromagnetic induction obtains with the inductive energy control coil.Inductive power supply coil and inductive energy control coil all are electrically connected the induction power supply processing unit one time; One time the induction power supply processing unit is monitored the supply power voltage size that the inductive power supply coil obtains; Judge the conducting and the disconnection of control inductive energy control coil, the sense of control power supply energy size that coil obtains of should supplying power according to voltage swing.The inductive energy control coil is electrically connected the solid-state relay switching circuit in the induction power supply processing unit one time; The conducting of solid-state relay switching circuit or disconnection are controlled by the inductive energy control module; The supply power voltage size that the inductive energy control module is obtained through the inductive power supply coil; Judge the energy size that the inductive power supply coil obtains; The conducting and the disconnection of control solid-state relay switching circuit, thus control inductive energy control coil short circuit conducting or open circuit break off, the sense of control power supply energy size that coil obtained of should supplying power.One time the induction power supply processing unit also is transformed into direct current to the alternating current that the inductive power supply coil obtains to current measurement and the power supply of optoelectronic information transmission unit through the AC-DC supply convertor.
With reference to figure 3, Fig. 4, Fig. 5, the reserve of ultrasonic wave energy supply power supply subsystem passes the ability power supply unit by ultrasonic wave driving power, ultrasonic wave and ultrasonic wave passes and can form by the power supply processing unit, utilizes ultrasonic wave to transmit the power supply energy from low voltage side to high-voltage side.Realize ultrasonic wave reserve power supply.
With reference to figure 3, ultrasonic wave driving power unit comprises a ultrasonic-frequency power supply and an energy supply control module.Ultrasonic-frequency power supply links to each other with the electroacoustic transducer that ultrasonic wave passes the ability power supply unit, is used to drive electroacoustic transducer and produces ultrasonic wave, and the operating state of ultrasonic-frequency power supply is controlled by energy supply control module.Energy supply control module links to each other with the secondary treatment system of the current measurement of low voltage side; Obtain bus current information one time from the secondary treatment system of current measurement; Utilize the energy size of a bus current information judgement inductive power supply, when declaring the energy shortage of knowing inductive power supply, energy supply control module just sends control signal; Control ultrasonic wave driving power gets into operating state, drives electroacoustic transducer generation ultrasonic wave and carries out the reserve power supply.
With reference to figure 4; Ultrasonic wave passes and can mainly be made up of electroacoustic transducer (ultrasonic transmitter), insulating rod, acoustic-electrical transducer (ultrasonic receiver) etc. by power supply unit, and the end face of the emission ultrasonic energy of ultrasonic wave electroacoustic transducer closely is connected with the low voltage side end face of insulating rod and fixes curing; The end face of the reception ultrasonic energy of ultrasonic acoustic electric transducer closely is connected with the high-voltage side end face of insulating rod and fixes curing.The optional usefulness of insulating rod has all kinds of insulating rods of good ultrasonic transmission ability, like glass bar, and epoxy composite rod, sticking plaster etc.To carry out precise polished processing and strict sealing and fixing and curing to each end face during connection, avoid joint gap as far as possible, reduce the coupling loss that the reflection of ultrasonic energy in the junction causes, also can use couplant to improve hyperacoustic transmission efficiency during connection.Ultrasonic wave passes and is installed in the middle hollow pipe of hollow combined insulator after the ability power supply unit is cured.Realization utilizes ultrasonic wave to supply power with electric insulation mode transmission of power.
With reference to figure 5, ultrasonic biography can be made up of coupling inductance, transformer and the rectifier filter circuit etc. of acoustic-electrical transducer by power supply.The acoustic-electrical transducer of ultrasonic wave power supply unit can be connected by the power supply processing unit with ultrasonic biography; The output of acoustic-electrical transducer is electrically connected coupling inductance and transformer; The output of transformer is connected with rectifier filter circuit; The high-frequency alternating current that produces the reserve of ultrasonic wave energy supply power supply converts direct current to, supplies with accumulation power supply.
With reference to figure 6; The accumulation power supply unit is made up of unilateral diode or door, storage capacitor, DC-DC conversion pressurizer; A ultrasonic induction power supply processing unit that passes ability power supply processing unit and primary current inductive power supply of ultrasonic wave reserve power supply all is electrically connected accumulation power supply, realizes the current measurement and the photo transmission system fault-free of photo-electricity mutual-inductor are supplied power continuously through capacitance energy storage and DC-DC conversion voltage stabilizing.
With reference to figure 7 and Fig. 8; One of implementation method of current measurement system is: the current information that obtains current measurement converts digital signal to through over-sampling and (A/D) mould/transformation of variables; Digital signal is carried out data processing and coding; Convert optical information into through electricity/light again, send to the secondary treatment system of low voltage side with optical fiber.Secondary treatment system receives optical information, converts optical information to the signal of telecommunication, decodes to obtain to represent the digital signal of the magnitude of current with data processing again; Carry out the analog voltage signal that the D/A conversion obtains to represent the magnitude of current to digital signal.
Data processing section among Fig. 7 and Fig. 8 can adopt embedded data processors such as FPGA, CPLD, DSP to realize.
With reference to figure 9 and Figure 10; Two of the implementation method of current measurement system is: conversion converts frequency information to the current information that obtains current measurement through (V/F) voltage/frequency; Frequency information converts optical information again into, sends to the secondary treatment system of low voltage side with optical fiber.Secondary treatment system receives optical information; Convert optical information to the signal of telecommunication; Carry out the analog voltage signal that the conversion of (F/V) frequency/voltage obtains to represent the magnitude of current to frequency signal again, carry out the digital signal that (F/D) frequency/data conversion obtains to represent the magnitude of current to frequency signal.
The reserve of ultrasonic wave energy supply of the present invention power supply can realize from low voltage side according to the power supplies such as electric equipment to high-voltage side of the mode of electric insulation.Utilize ultrasonic wave to be sent to the high-pressure side to the power supply energy through insulating rod from low-pressure side, convert ultrasonic energy to electric energy again in the high-pressure side.It so between the high voltage of electric power system and the low-voltage both sides complete electrical isolation; The High-Voltage Insulation of this electric power system is very competent; The power supply energy of transmission is big; Stable performance does not receive such environmental effects and restriction, and the electromagnetic interference effect that on high-tension side measurement and data handling system etc. are produced is little.A bus current electromagnetic induction energy supply cost of the present invention is low, and technical being convenient to realized.Utilize ultrasonic wave reserve power supply that the power supply performance of bus current electromagnetic induction energy supply is carried out complementation, both overcome in " power supply dead band " that primary current electromagnetic induction energy supply exists, prolonged the useful life of ultrasonic wave energy supply again.Can realize that long-term fault-free supplies power continuously, improve the stability and the reliability of electric power system, improve and improved the performance of active photo-electricity mutual-inductor.

Claims (7)

1. a ultrasonic active photoelectric current inductor that mixes energy supply with induction is characterized in that, comprises a mixed power supply system, a current measurement system; Said mixed power supply system comprises primary current inductive power supply subsystem, accumulation power supply unit and ultrasonic wave reserve power supply subsystem;
Ultrasonic wave reserve power supply subsystem comprise the ultrasonic wave driving power unit of low-pressure side, the on high-tension side ultrasonic biography that is connected with the accumulation power supply unit can the power supply processing unit, be connected ultrasonic wave driving power unit and the ultrasonic biography ultrasonic wave between can the power supply processing unit and pass the ability power supply unit; The control input of ultrasonic wave driving power unit connects the output of the secondary treatment system in the current measurement system; Obtain bus current information one time; And the energy of judging inductive power supply is big or small; Produce ultrasonic wave in order to control ultrasonic wave driving power and carry out the reserve power supply, realize the selection and the switching of main reserve power supply; A ultrasonic induction power supply processing unit that passes ability power supply processing unit and primary current inductive power supply subsystem all is electrically connected the accumulation power supply unit, through accumulation power supply completion energy storage and to current measurement in the current measurement system and the power supply of optoelectronic information transmission unit;
Said current measurement system comprises optical fiber, obtains current measurement information and low power consumption current instrument transformer that is electrically connected with current measurement and optoelectronic information transmission unit or Rogowski coil from bus; Current measurement and optoelectronic information transmission unit are handled with electric light current measurement information and are changed; And be sent to metrical information from the high-pressure side secondary treatment system of low-pressure side through optical fiber; Secondary treatment system is realized the measurement to high-tension current through opto-electronic conversion and processing reduction current information.
2. the ultrasonic active photoelectric current inductor that mixes energy supply with induction as claimed in claim 1; It is characterized in that; Primary current inductive power supply subsystem comprises that induction power supply processing unit and connected is got can coil; Get and can obtain the power supply energy from the primary current bus through electromagnetic induction by coil, an induction power supply processing unit converts the AC energy of induction into direct current energy and supplies with the accumulation power supply unit.
3. the ultrasonic active photoelectric current inductor that mixes energy supply with induction as claimed in claim 2; It is characterized in that, said get can coil once be current bus bar punching structure, secondary has two electromagnetic induction coils; One is the inductive power supply coil, and another is the inductive energy control coil; Inductive power supply coil and inductive energy control coil all are electrically connected the induction power supply processing unit one time; The supply power voltage size that this induction power supply processing unit monitoring inductive power supply coil obtains; Judge the conducting and the disconnection of control inductive energy control coil according to voltage swing; Control get can coil the power supply energy size obtained of inductive power supply coil, the alternating current that induction power supply processing unit obtains the inductive power supply coil is transformed into direct current through the AC-DC supply convertor current measurement and optoelectronic information transmission unit is supplied power.
4. the ultrasonic active photoelectric current inductor that mixes energy supply with induction as claimed in claim 1; It is characterized in that; Described ultrasonic wave passes and can include the electroacoustic transducer that links to each other with ultrasonic wave driving power unit by power supply unit; The ultrasonic emitting end face of this electroacoustic transducer is fixedly connected on the low-pressure side end face of an insulating rod; It is fixedly connected that the high-pressure side end face of insulating rod and the ultrasonic wave of acoustic-electrical transducer receive end face, and the output of acoustic-electrical transducer is electrically connected to ultrasonic biography can the power supply processing unit.
5. the ultrasonic active photoelectric current inductor that mixes energy supply with induction as claimed in claim 1; It is characterized in that; Described ultrasonic wave driving power unit comprises a ultrasonic-frequency power supply and an energy supply control module, and ultrasonic-frequency power supply links to each other with the electroacoustic transducer that ultrasonic wave passes the ability power supply unit, is used to drive electroacoustic transducer and produces ultrasonic wave; Energy supply control module links to each other with the secondary treatment system of the current measurement system of low voltage side; Obtain bus current information one time from the secondary treatment system of current measurement system, and judge the energy size of inductive power supply, carry out the reserve power supply to drive electroacoustic transducer generation ultrasonic wave.
6. the ultrasonic active photoelectric current inductor that mixes energy supply with induction as claimed in claim 1; It is characterized in that; Described ultrasonic biography can comprise coupling inductance, transformer and rectifier filter circuit by the power supply processing unit, and the acoustic-electrical transducer that ultrasonic wave passes the ability power supply unit connects coupling inductance and transformer, and the output of transformer connects rectifier filter circuit; The high-frequency alternating current that produces the reserve of ultrasonic wave energy supply power supply converts direct current to, supplies with the accumulation power supply unit.
7. the ultrasonic active photoelectric current inductor that mixes energy supply with induction as claimed in claim 1; It is characterized in that; Described accumulation power supply unit comprise a storage capacitor, DC-DC conversion pressurizer, respectively with induction power supply processing unit, ultrasonic biography can the power supply processing unit output two unilateral diodes or the door that are connected, DC-DC conversion pressurizer output galvanic current is pressed current measurement and optoelectronic information transmission unit is supplied power.
CN2010102823537A 2010-09-15 2010-09-15 Active photoelectric current transformermutual inductor by mixed power supply of ultrasound and induction CN101937764B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010102823537A CN101937764B (en) 2010-09-15 2010-09-15 Active photoelectric current transformermutual inductor by mixed power supply of ultrasound and induction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010102823537A CN101937764B (en) 2010-09-15 2010-09-15 Active photoelectric current transformermutual inductor by mixed power supply of ultrasound and induction

Publications (2)

Publication Number Publication Date
CN101937764A CN101937764A (en) 2011-01-05
CN101937764B true CN101937764B (en) 2012-07-04

Family

ID=43391032

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010102823537A CN101937764B (en) 2010-09-15 2010-09-15 Active photoelectric current transformermutual inductor by mixed power supply of ultrasound and induction

Country Status (1)

Country Link
CN (1) CN101937764B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102508005A (en) * 2011-11-17 2012-06-20 北京四方继保自动化股份有限公司 Safe wireless transmission current measuring device
CN102608557B (en) * 2012-03-19 2014-07-02 西安交通大学 Photoelectric current transformer with online check function
CN102638021B (en) * 2012-04-10 2015-01-21 西安交通大学 Power line deicer through gravity impact and application of power line deicer
CN103580295A (en) * 2012-07-27 2014-02-12 西门子公司 High-voltage interface device and method based on ultrasonic waves
CN103543320A (en) * 2013-09-24 2014-01-29 株洲变流技术国家工程研究中心有限公司 High-potential current real-time detection device
CN105490394B (en) * 2015-12-16 2017-10-27 浙江大学 Wireless energy and information transmission device based on sound wave
CN110221166A (en) * 2018-03-01 2019-09-10 河南许继仪表有限公司 A kind of loop state cruising inspection system and its electrifying device and loop state logging
CN109387687B (en) * 2018-11-09 2020-11-27 福州大学 Energy-saving photoelectric transmission system and method of electronic transformer

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3087155B2 (en) * 1994-03-04 2000-09-11 日新電機株式会社 Leakage current detection sensor
CN101345128B (en) * 2008-05-23 2010-06-02 北京浩霆光电技术有限责任公司 High potential side energy supplying device of active electronic type photoelectric current mutual inductor
CN101309057B (en) * 2008-06-19 2011-04-06 西安交通大学 Ultrasonic energy supply apparatus of photoelectric current inductor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP平7-244111A 1995.09.19

Also Published As

Publication number Publication date
CN101937764A (en) 2011-01-05

Similar Documents

Publication Publication Date Title
JP5681947B2 (en) WIRELESS POWER TRANSMISSION DEVICE, AND GENERATION DEVICE AND GENERATION SYSTEM INCLUDING WIRELESS POWER TRANSMISSION DEVICE
CN101572495B (en) Multifunctional power electric transformer
CN202444333U (en) Frequency tracking control device of magnetic-coupling resonance wireless power transmission system
CN103683530B (en) A kind of data transmission method and apply its wireless charging device
CN202770953U (en) Partial discharge detector for oscillating wave of crosslinked cable
CN202634316U (en) Energy taking device based on capacitive voltage divider
CN101651364B (en) Remote automation control high-voltage measurement comprehensive distribution equipment
CN105406610A (en) Coil self-decoupling double-phase reception apparatus applied to mobile transportation equipment wireless power supply
CN102832287B (en) A kind of Semi-conductor DC photoelectric transformer
CN103779951A (en) Electric bicycle magnetic coupling resonance type wireless charger
Wei et al. Simulation and experimental comparison of different coupling mechanisms for the wireless electricity transfer
CN104485756B (en) A kind of electricity getting device of ultra-high-tension power transmission line
CN203261131U (en) Wireless power transmission device based on electromagnetic coupling resonance
CN107093894B (en) A kind of underwater constant current constant voltage conversion equipment suitable for seabed constant-current supply system
CN102969804A (en) Resonant coupling wireless power transmission system adopting superconducting coil and implementation method thereof
CN103928961A (en) Electric vehicle wireless charging system
CN102253331B (en) Method and board for photoelectric trigger detection based on parallel thyristors
CN102048367B (en) Wireless power supply desktop
CN104122428B (en) Electronic current transformer adopting optical fiber transmission analog signals
CN102255400A (en) Wireless power supply device and use method thereof
CN201717792U (en) Energy taking power supply of overhead line
CN203299943U (en) Low-power-consumption battery type wireless doorbell
CN102891538A (en) Line patrol robot wireless charging system
CN105978445B (en) A kind of optical fiber energy supplying system and its energy supply method based on multi-junction condensation photovoltaic cell
Fang et al. Wireless power transfer system for capsule endoscopy based on strongly coupled magnetic resonance theory

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120704

Termination date: 20140915

EXPY Termination of patent right or utility model