CN102593960A - High-voltage-insulation high-frequency-induction energy-conducting power supply device - Google Patents
High-voltage-insulation high-frequency-induction energy-conducting power supply device Download PDFInfo
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- CN102593960A CN102593960A CN2012100409546A CN201210040954A CN102593960A CN 102593960 A CN102593960 A CN 102593960A CN 2012100409546 A CN2012100409546 A CN 2012100409546A CN 201210040954 A CN201210040954 A CN 201210040954A CN 102593960 A CN102593960 A CN 102593960A
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Abstract
The invention discloses a high-voltage-insulation high-frequency-induction energy-conducting power supply device which is characterized by comprising a plurality of electromagnetic induction coils L which are placed along a central axis, wherein two ends of the lowest low-voltage-side electromagnetic induction coil L are connected with an output end of a high-frequency driving power supply; two ends of the uppermost high-voltage-side electromagnetic induction coil L are connected with an input end of an AC/DC (alternating current/direct current) power converter; two ends of each of the other electromagnetic induction coils L are connected with a capacitor C; and specific-high-frequency alternating-current electrical energy generated by the high-frequency driving power supply is transmitted from the low voltage side to the high voltage side through the high-frequency electromagnetic-induction resonance of the plurality of electromagnetic induction coils L and the capacitors C, and then converted to direct-current electrical energy by the AC/DC power converter, so that power-using units at the high voltage side in on-line detecting and monitoring equipment or active optical current transformers can be supplied with electrical energy. The high-voltage-insulation high-frequency-induction energy-conducting power supply device has the advantages of large power supply capacity, low price, long service life, high high-voltage-insulation capability, stable performance and the like.
Description
Technical field
The high-frequency induction that the present invention relates to a kind of High-Voltage Insulation passes the ability electric supply installation, needing to be used for the active photoelectric current electricity instrument transformer and the online detection watch-dog of all kinds of high pressure of High-Voltage Insulation power supply, realizes passing and supplying power with the mode of High-Voltage Insulation.
Background technology
Current transformer plays crucial effect in electric power system, be a nucleus equipment in the electric power system.The photoelectric current inductor that the High-Voltage Insulation ability is strong has been pressing for of intelligent grid development.Optical fiber current mutual inductor OCT because of anti-electromagnetic interference performance is good, certainty of measurement is high, dynamic range is big, frequency response range is wide, little in light weight, the low price of volume, with advantages such as the interface of digital device is convenient; Be with a wide range of applications, become the trend of high-tension current inductor gradually.Optical fiber current mutual 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); Pure optical current mutual inductor is owing to receive the influence of factors such as ambient temperature and vibrations, and the stability of its performance is the main difficulty of its practicability of puzzlement; Photoelectric mixed-mode current transformer profit has overcome the difficult problem of the poor stability of pure optical current mutual inductor, and good stable property makes it obtain fast development, has got into the practicability stage at present.But the on high-tension side measurement of photoelectric mixed-mode current transformer (active photo-electricity mutual-inductor), data processing and optoelectronic information transmission system etc. need power supply, power supply to mainly contain " power supply of high-pressure side primary current electromagnetic induction ", " laser energy supply ", " ultrasonic wave energy supply " and supply power modes such as " pneumatic energy supplies " at present." power supply of high-pressure side primary current electromagnetic induction " exists the power supply can be not enough when primary current is smaller, and the power supply dead band that formation can't be worked exists the energy of supplying power excessive when primary current is very big again during with short circuit, is difficult to release and damages the difficult problem of power supply circuits; Though laser, the stable performance of ultrasonic wave energy supply are well positioned to meet the stability requirement of power supply, the power supply energy is smaller; Energy-conservation and anti-interference requirement to measurement and photo transmission system is very high; And too expensive, easy ageing, the long-time running life-span can not meet the demands; Pneumatic energy supply also exists gas to reveal easily and the long-time running life-span can not meet the demands.The high-pressure side energy supply of photoelectric mixed-mode current transformer is the core technology difficult problem of its practicability of puzzlement.
The online detection of high pressure primary equipment and monitoring are the important measures of guaranteeing electric power netting safe running; The demand for development electrical network of intelligent grid has very strong fault self-diagnosis and self-healing recovery ability, and this has just proposed very high requirement to the online detection of running status and the monitoring of all kinds of high pressure primary equipments in the electric power system.The online detection of high pressure primary equipment and monitoring also need be to system's energy supplies such as the detection that is in high pressure one side, control, communications, and the online detection of high pressure primary equipment and the high-pressure side energy supply of supervisory control system also are the core technology difficult problems of on-line monitoring and supervisory control system.
Summary of the invention
To the energy supply existing technical barrier of active photoelectric current inductor with online detection of some high pressure and watch-dog high voltage appearance one side; The high-frequency induction that the invention provides a kind of High-Voltage Insulation passes the ability electric supply installation; Can realize the on high-tension side various electricity consumption module energy supplies in active photoelectric current inductor or online detection of high pressure and the watch-dog through high-frequency electromagnetic induction resonance biography, satisfy the required long-life power reguirements of steady and continuous of on high-tension side various electricity consumption modules (comprising measurement, data processing and optoelectronic information transmission etc.) in online detection of active photoelectric current inductor or high pressure and the watch-dog.
For reaching above purpose, the present invention takes following technical scheme to be achieved:
A kind of high-frequency induction of High-Voltage Insulation passes can electric supply installation, it is characterized in that, comprises a plurality of electromagnetic induction coil L that place along central axial direction, and wherein the electromagnetic induction coil L two ends of below low pressure one side connect the output of a high-frequency drive power supply; The electromagnetic induction coil L two ends of the top high pressure one side connect the input of an AC/DC supply convertor, and remaining electromagnetic induction coil L two ends all is connected with capacitor C; The high-frequency electromagnetic induction resonance of the high-frequency ac electric energy of the CF that said high-frequency drive power supply produces through said a plurality of electromagnetic induction coil L and capacitor C is transferred to the top high pressure one side from below low pressure one side; Convert the power unit of direct current energy into by the AC/DC supply convertor again, perhaps active photoelectric current inductor energy supply on high-tension side online detection and watch-dog.
In the such scheme; Said a plurality of electromagnetic induction coil L and the capacitor C that places along central axial direction is arranged on the skeleton of insulating material formation; The number of turn of each electromagnetic induction coil L can be identical with shape; Be parallel to each other between each residing plane of electromagnetic induction coil L, the distance h between the plane can equate.
Described high-frequency drive power supply comprises an AC-DC translation circuit, and this AC-DC translation circuit output is connected with a power amplifier with a HF signal generator, a phase-locked loop frequency tracker, to them direct current supply is provided; HF signal generator produces high-frequency signal output and connects power amplifier, produces high frequency power voltage through power amplification; The electromagnetic induction coil L two ends of low-pressure side below the output connection of power amplifier; The phase-locked loop frequency tracker is gathered the output voltage and the electric current of power amplifier, and the resonance frequency of judging and following the tracks of the electromagnetic induction of electromagnetic induction coil L and capacitor C dynamically, and the output frequency of adjustment signal generator realize that frequency dynamic is followed the tracks of and coupling.
Described AC/DC supply convertor comprises a rectifier filter circuit that is connected with on high-tension side electromagnetic induction coil L two ends, the top; This rectifier filter circuit converts the high-frequency ac electric energy to direct current energy; Through a stable dc power supply of DC-DC converter output; To the power unit of on high-tension side online detection and watch-dog, perhaps active photoelectric current inductor energy supply.
The present invention can realize from mode the various electricity consumption modules that are in high pressure opposite side (measurement, data processing and the optoelectronic information transmission etc.) energy supply to active photoelectric current inductor or high pressure online detection and watch-dog of low-voltage one side according to insulation.Utilize electromagnetic induction resonance to be sent to the high pressure opposite side to the high-frequency ac electric energy of CF from low pressure one side, convert the high-frequency ac electric energy to direct current energy again at the high pressure opposite side.It so between low-voltage one side of electric power system and the high voltage opposite side complete power frequency electrical isolation.The alternating current-direct current High-Voltage Insulation ability of this electric power system is strong, and the power supply energy of transmission is big, stable performance; Do not receive such environmental effects and restriction; Be not easy aging and degeneration, long service life, and also the electromagnetic interference effect that various measurement controls and data handling system etc. are produced is little.Can satisfy reliability, the stability requirement of electric power system to the long-term continuous operation of active photoelectric current inductor and the online detection watch-dog of high pressure.
Compared with prior art, the present invention has the following advantages:
1) high voltage supply system of the high-frequency induction of High-Voltage Insulation biography ability electric supply installation does not receive the restriction of primary current size, does not have in " power supply dead band ", is not afraid of the impact of Short-Circuit High Current yet, and the power supply energy is very stable.
2) high voltage supply system of the high-frequency induction of High-Voltage Insulation biography ability electric supply installation can provide bigger power supply energy; The photoelectric measurement control system of active photoelectric current inductor and the online detection watch-dog of high pressure and photo transmission system energy-conservation required low, can improve antijamming capability.
3) adaptive capacity to environment is strong, and the performance that the high-frequency induction of High-Voltage Insulation passes the ability electric supply installation is very stable, be not easy to wear out, and long service life, cheap, can satisfy electric power system to the requirement of security reliability with long-term useful life.
Description of drawings
Fig. 1 passes ability electric supply installation structural representation for the high-frequency induction of High-Voltage Insulation of the present invention.Wherein a figure is the cutaway view of device; B figure is the vertical view of the coil L among a figure.
Fig. 2 is the functional block diagram of the high-frequency drive power supply 1 among Fig. 1.
Fig. 3 is the functional block diagram of the on high-tension side AC/DC supply convertor 2 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 high-frequency induction of High-Voltage Insulation passes can electric supply installation, comprises a high-frequency drive power supply 1, an AC/DC supply convertor 2 and an a plurality of electromagnetic induction coil L and a capacitor C who places along central axial direction.The electromagnetic induction coil L two ends of below low pressure one side connect the output of high-frequency drive power supply 1, and the electromagnetic induction coil L two ends of the top high pressure one side connect the input of AC/DC supply convertor 2, and remaining electromagnetic induction coil L two ends all is connected with capacitor C; The high-frequency electromagnetic induction resonance of the high-frequency ac electric energy of the CF that high-frequency drive power supply 1 produces through these electromagnetic induction coils L and capacitor C is transferred to the top high pressure one side from below low pressure one side; Convert the power unit 3 of direct current energy into by AC/DC supply convertor 2 again to observing and controlling etc.; Perhaps active photoelectric current inductor energy supply, the power unit 3 of observing and controlling etc. are meant the various electricity consumption modules (measurement, data processing and optoelectronic information transmission etc.) that are in high pressure one side in online detection of high pressure and the watch-dog.
Electromagnetic induction coil L and the capacitor C that is connected these electromagnetic induction coils L two ends can be arranged on the skeleton (not drawing among the figure) that high voltage insulating materials processes, and this skeleton can be high polymer insulating material such as silicon rubber, nylon, polyurethane; Also can be glass, pottery.The a plurality of electromagnetic induction coil L and the capacitor C that place along central axial direction can be arranged on the skeleton of insulating material formation, and this skeleton can be high polymer insulating material such as silicon rubber, nylon, polyurethane; Also can be glass, pottery.The number of turn of each electromagnetic induction coil L can be identical with shape, is parallel to each other between each residing plane of electromagnetic induction coil L, and the distance h between the plane can equate.Electromagnetic induction coil L and the output frequency generation electromagnetic induction resonance of the capacitor C that is connected its two ends to high-frequency drive power supply 1, the output frequency of the induction reactance of inductance coil, the capacitive reactance of capacitor and high-frequency drive power supply 1 and impedance will be satisfied frequency resonance and require and the impedance matching requirement.The high-frequency ac electric energy of the CF that the high-frequency electromagnetic induction resonance through these electromagnetic induction coils L and capacitor C can send high-frequency drive power supply 1 is transferred to the high pressure opposite side of the top from low pressure one side of below, and has good alternating current-direct current High-Voltage Insulation ability.
As shown in Figure 2, described high-frequency drive power supply 1 comprises an AC-DC translation circuit, a HF signal generator, a phase-locked loop frequency tracker, a power amplifier.The AC-DC translation circuit converts the 50HZ AC energy to direct current energy, and the output of AC-DC translation circuit connects the dc bias circuit of HF signal generator, phase-locked loop frequency tracker and power amplifier, for they provide dc offset voltage; HF signal generator produces the high-frequency signal of 1MHZ-10MHZ frequency range, and output connects power amplifier, carries out power amplification and produces high frequency power voltage; The electromagnetic induction coil L two ends of low pressure one side below the output connection of power amplifier; Drive induction coil L and capacitor C and produce high-frequency electromagnetic induction resonance; The output frequency of signal generator is identical with the resonance frequency of electromagnetic induction; The phase-locked loop frequency tracker is gathered the output voltage and the electric current of power amplifier, judges according to the phase place of voltage and current, judges and follow the tracks of the resonance frequency variation of the electromagnetic induction of high-frequency electromagnetic induction coil L and capacitor C dynamically; And the output frequency of regulation and control HF signal generator, realize that frequency dynamic is followed the tracks of and coupling.
As shown in Figure 3, described AC/DC supply convertor 2 comprises the rectifier filter circuit and the DC-DC converter that are connected with the electromagnetic induction coil L two ends of the top high-voltage side; Rectifier filter circuit converts the high-frequency ac electric energy that the electromagnetic induction coil L two ends of the high-voltage side from the top obtain to direct current energy; Again through a stable dc power supply (0-12V) of DC-DC converter output; To the power unit 3 of observing and controlling etc., perhaps active photoelectric current inductor energy supply.
Claims (4)
1. pass can electric supply installation for the high-frequency induction of a High-Voltage Insulation, it is characterized in that, comprises a plurality of electromagnetic induction coil L that place along central axial direction, and wherein the electromagnetic induction coil L two ends of below low pressure one side connect the output of a high-frequency drive power supply; The electromagnetic induction coil L two ends of the top high pressure one side connect the input of an AC/DC supply convertor, and remaining electromagnetic induction coil L two ends all is connected with capacitor C; The high-frequency electromagnetic induction resonance of the high-frequency ac electric energy of the CF that said high-frequency drive power supply produces through said a plurality of electromagnetic induction coil L and capacitor C is transferred to the top high pressure one side from below low pressure one side; Convert power unit or the active photoelectric current inductor energy supply of direct current energy into by the AC/DC supply convertor again on high-tension side online detection and watch-dog.
2. the high-frequency induction of a kind of High-Voltage Insulation as claimed in claim 1 passes the ability electric supply installation; It is characterized in that; Described a plurality of electromagnetic induction coil L and the capacitor C that places along central axial direction is arranged on the skeleton of insulating material formation; The number of turn of each electromagnetic induction coil L is identical with shape, is parallel to each other between each residing plane of electromagnetic induction coil L, and the distance h between the plane equates.
3. the high-frequency induction of a kind of High-Voltage Insulation as claimed in claim 1 passes the ability electric supply installation; It is characterized in that; Described high-frequency drive power supply comprises an AC-DC translation circuit; This AC-DC translation circuit output is connected with a power amplifier with a HF signal generator, a phase-locked loop frequency tracker, and HF signal generator produces high-frequency signal output and connects power amplifier, produces high frequency power voltage through power amplification; The electromagnetic induction coil L two ends of low-pressure side below the output connection of power amplifier; The phase-locked loop frequency tracker is gathered the output voltage and the electric current of power amplifier; The dynamic resonance frequency of judging and following the tracks of the electromagnetic induction of electromagnetic induction coil L and capacitor C; And the output frequency of regulation and control HF signal generator, realize that frequency dynamic is followed the tracks of and coupling.
4. the high-frequency induction of a kind of High-Voltage Insulation as claimed in claim 1 passes the ability electric supply installation; It is characterized in that; Described AC/DC supply convertor comprises a rectifier filter circuit that is connected with on high-tension side electromagnetic induction coil L two ends, the top; This rectifier filter circuit converts the high-frequency ac electric energy to direct current energy; Through a stable dc power supply of DC-DC converter output, to the power unit of on high-tension side online detection and watch-dog, perhaps active photoelectric current inductor energy supply.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210040954.6A CN102593960B (en) | 2012-02-22 | 2012-02-22 | High-voltage-insulation high-frequency-induction energy-conducting power supply device |
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| CN201210040954.6A CN102593960B (en) | 2012-02-22 | 2012-02-22 | High-voltage-insulation high-frequency-induction energy-conducting power supply device |
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| CN102593960A true CN102593960A (en) | 2012-07-18 |
| CN102593960B CN102593960B (en) | 2014-03-12 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090072629A1 (en) * | 2007-09-17 | 2009-03-19 | Nigel Power, Llc | High Efficiency and Power Transfer in Wireless Power Magnetic Resonators |
| JP2010114009A (en) * | 2008-11-07 | 2010-05-20 | Toshiba Lighting & Technology Corp | Power supply device, lighting device, and power supply system |
| CN101950660A (en) * | 2010-09-15 | 2011-01-19 | 西安交通大学 | Active photoelectric current transformer power-supplied by ultrasonic wave |
-
2012
- 2012-02-22 CN CN201210040954.6A patent/CN102593960B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090072629A1 (en) * | 2007-09-17 | 2009-03-19 | Nigel Power, Llc | High Efficiency and Power Transfer in Wireless Power Magnetic Resonators |
| JP2010114009A (en) * | 2008-11-07 | 2010-05-20 | Toshiba Lighting & Technology Corp | Power supply device, lighting device, and power supply system |
| CN101950660A (en) * | 2010-09-15 | 2011-01-19 | 西安交通大学 | Active photoelectric current transformer power-supplied by ultrasonic wave |
Non-Patent Citations (2)
| Title |
|---|
| 傅文珍等: "自谐振线圈耦合式电能无线传输的最大效率分析与设计", 《中国电机工程学报》, vol. 29, no. 18, 25 June 2009 (2009-06-25) * |
| 傅文珍等: "频率跟踪式谐振耦合电能无线传输系统研究", 《变频器世界》, 31 August 2009 (2009-08-31) * |
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