CN103618436A - High-power high-frequency power supply system for high-potential electronic circuit and method of high-power high-frequency power supply system - Google Patents
High-power high-frequency power supply system for high-potential electronic circuit and method of high-power high-frequency power supply system Download PDFInfo
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Abstract
The invention relates to a high-power high-frequency power supply system for a high-potential electronic circuit and a method of the high-power high-frequency power supply system. The system comprises a high-frequency power supply, a high-frequency high-voltage transformer, a poured integrated high-frequency energy transmission CT (current transformer) and an impendence compensation link which are connected with one another in sequence, wherein the high-frequency power supply comprises a high-frequency current source and a high-frequency voltage source. The method comprises the steps of (1) connecting the high-frequency power supply to low-voltage direct current voltage or alternating current mains supply; and (2) converting the connected voltage into a high-frequency signal, and outputting the high-frequency signal to the high-frequency transformer. According to the system and the method which are disclosed by the invention, the dispersibility of distribution parameters is reduced, and electrical isolation of all trigger electronic circuits is realized; due to the high-frequency transformer, insulation between a low-potential part and a high-potential part of an energy transmission power supply system is realized; the energy transmission efficiency is optimized. The system and the method meet requirements on modularization and standardization of a product, are high in load adaptability and also meet a requirement on energy for continuously triggering a thyristor valve.
Description
Technical field
The invention belongs to electronic technology, specifically relate to a kind of high potential electronic circuit high-power high-frequency power supply system and method thereof.
Background technology
Power electronic technology has comparatively significantly advantage in relatively traditional regulating measure aspect the flexible of electric energy, and it is widely used in electric power system.The power electronic device such as thyristor valve are as power changing unit wherein, the electric pressure of its application is also more and more higher, high potential electronic circuit as its triggering is usually installed on valve body, in high potential, for it provides reliable and stable power supply to supply with, be one of key link improving power electronic equipment overall stability.
High potential electronic circuit power supply supply mode has two kinds of modes: getting energy mode and send can mode.Get and can mode from power-frequency voltage or the power current of primary equipment high-voltage system, obtain energy.Send and can from earth potential power-supply system to high potential electronic circuit, provide power supply to supply with, its mode has sharp light delivery mode, power frequency to send energy mode and high frequency to send can mode.
The matching requirements thyristor valve trigger modes such as solid combination switch SSFC, the controlled high resistance CSR of magnetic valve type, solid converting switch SSTS are supported with several KHz to tens KHz frequency continuous trigger conduction modes, the a pair of antiparallel thyristor of continuous trigger approximately needs the power of tens watts, and single-phase valve body generally needs tens layers to tens layers thyristor.To triggering the power supply system of electronic circuit, higher requirement has been proposed like this.Power-frequency voltage get can or power current get can, meet the power demand that continuous trigger consumes, require power-frequency voltage or current value very large.Like this, do not meet application request on the one hand, also can increase on the other hand the design difficulty that triggers electronic circuit.Swash light delivery mode, meet continuous trigger power demand, its cost is high, and its conversion efficiency is low, and under long-term service condition, ageing equipment is very fast, and the life-span is shorter.Power frequency is sent energy mode, and the desired power-frequency voltage of continuous trigger or current value are very large, has increased the design difficulty that triggers electronic circuit.
The energy mode of sending high frequency can realize the fast energy exchange with high potential electronic circuit, more easily meets the power demand that thyristor valve continuous trigger consumes.High frequency send can mode have two kinds of modes: current source mode (patent publication No. is CN101222183A) and voltage source mode (license number is CN201904717U).
High frequency send energy mode need to solve the problem of following four aspects:
1) the High-Voltage Insulation problem of high frequency energy supplying system ground power supply part and high potential electronic circuit;
2) consistency problem of distributed constant;
3) adaptive load capability problems;
4) high frequency send the whole efficiency problem of energy power-supply system.
The current source mode that patent CN101222183A carries only rely on self insulation of cable to solve to send can power-supply system Insulation Problems, be more difficultly applied to 35kV voltage and above grade, and have the poor problem of distributed constant consistency.The voltage source mode that patent CN201904717U carries, utilize the insulation of cable and the insulation of transformer to solve and send energy power-supply system Insulation Problems, can be applied to 35kV voltage and above grade, but due to the layout of cable with fixedly there is uncertain factor, the more difficult control of its distributed constant, makes power-supply system overall performance consistency poor.In addition, the high frequency that patent CN201904717U carries send in energy scheme, all triggering electronic circuits of giving provide the former limit of the current transformer monomer of energy to be all cascaded, the quantity of series connection is different, designed high frequency transformer parameter is also just different, is unfavorable for like this modularization, the standardization of product.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of high potential electronic circuit high-power high-frequency power supply system and method thereof, adopt the present invention to realize: the High-Voltage Insulation of high frequency energy supplying system ground power supply part and high potential electronic circuit; The consistency of distributed constant is better; The higher energy efficiency of sending; Be easy to modularization and the standardization of product.System of the present invention comprises: high frequency electric source, high frequency high voltage transformer, cast-type integral high frequency send can CT and impedance-compensated link.The present invention can be used in solid combination switch SSFC, the controlled high resistance CSR of magnetic valve type, solid converting switch SSTS.
The object of the invention is to adopt following technical proposals to realize:
A high potential electronic circuit high-power high-frequency power supply system, its improvements are, described system comprises that high frequency electric source, high frequency high voltage transformer, cast-type integral high frequency send can CT and impedance-compensated link;
Described high frequency electric source, high frequency high voltage transformer, cast-type integral high frequency send and can be connected successively with impedance-compensated link by CT;
Described high frequency electric source comprises source of high frequency current and high frequency voltage source.
Preferably, low-voltage dc voltage or electric main, high frequency voltage source and high frequency transformer are connected successively; The former limit of described high frequency transformer is connected in parallel, and secondary respectively connects a cast-type integral high frequency and send energy CT.
Preferably, low-voltage dc voltage or electric main, source of high frequency current and high frequency transformer are connected successively; The former limit of described high frequency transformer is connected in series, the impedance-compensated link Cs of a termination, the output of another termination source of high frequency current; The other end of described impedance-compensated link Cs is connected with high-frequency current source output terminal.
Preferably, described cast-type integral high frequency send and can comprise that a conductive metal pipe mother send and can form by CT monomer through many core-theaded type high frequencies, fixes by pouring type by CT.
Preferably, described cast-type integral high frequency send and can comprise that the former limit of 15 high frequency CT monomers is connected in series formation by CT.
Further, the high potential that the secondary of described high frequency CT monomer connects separately triggers electronic circuit ZL.
Further, described high frequency CT monomer core material is ultracrystallite material, and former limit is single turn, and secondary is determined the number of turn according to energy transmission efficiency and design of transformer basic principle.
Preferably, described cast-type integral high frequency send the conductive metal pipe mother of energy CT to be connected with valve body single-point equipotential.
Further, described high frequency send can the former limit of CT monomer and the insulation of secondary by pouring into a mould dielectric insulation and air insulation forms.
Preferably, described high frequency transformer magnetic core material is ultracrystallite material.
The present invention is based on a kind of high potential electronic circuit high-power high-frequency method of supplying power that another object provides, its improvements are, described method comprises
(1) high frequency electric source access low-voltage dc voltage or electric main;
(2) become high-frequency signal to export high frequency transformer to the voltage transformation of access.
Preferably, described high frequency electric source can receive locking, the order of release Voltage-output contact from peripheral control unit; Can receive the control parameter gear setting from peripheral control unit; Described high frequency electric source can be monitored input, output voltage abnormal conditions, and outputting alarm contact point signal.
Compared with the prior art, beneficial effect of the present invention is:
1, in the present invention, cast-type integral high frequency send the conductive metal pipe mother of energy CT to be connected with valve body single-point equipotential, it can each secondary current potential of CT be determined value that cast-type integral high frequency send, the insulation of former limit and secondary, by pouring into a mould dielectric insulation and air insulation forms, realizes each and triggers the electrical isolation between electronic circuit.
2, high frequency transformer magnetic core material of the present invention adopts ultracrystallite material, according to the short-circuit impedance of equivalent load impedance design high frequency transformer in the reasonable scope, meet load variations requirement, make the energy transmission efficiency of high frequency transformer in the reasonable scope, and be applicable to the application requirements of many high frequency transformer former limit parallel connections.
3, high frequency transformer of the present invention is realized the insulation of former secondary by pouring technology, and its dielectric voltage withstand meets thyristor valve body in the requirement of the ceiling voltage of the time of running.
4, high frequency electric source of the present invention is high frequency square wave voltage source, has input power factor high, and harmonic wave is little, and output voltage amplitude, the feature that frequency agile is adjustable can adapt to the load that wide region changes.
5, the present invention send energy CT by cast-type integral high frequency, has dwindled the dispersiveness of distributed constant, and has realized each and triggered the electrical isolation between electronic circuit; By high frequency transformer, realized the insulation of sending energy power-supply system earth potential part and high potential part; Equiva lent impedance by reasonable control transformer or add impedance-compensated link to carry out optimization energy efficiency of transmission; High frequency electric source feed system provided by the invention meets modularization and the standardization requirement of product, and adaptive load ability is strong, meets the required energy requirement of thyristor valve continuous trigger.
6, the present invention adopts impedance-compensated link in order to the leakage reactance of compensation or three high frequency transformers of partial-compensation, reduces the voltage stress of source of high frequency current.
Accompanying drawing explanation
Fig. 1 is that a kind of high potential electronic circuit high-power high-frequency power supply system medium-high frequency voltage source provided by the invention is supplied with schematic diagram.
Fig. 2 is that a kind of high potential electronic circuit high-power high-frequency power supply system medium-high frequency current source provided by the invention is supplied with schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
A kind of high potential electronic circuit of the present invention high-power high-frequency power supply system comprises: high frequency electric source, high frequency high voltage transformer, cast-type integral high frequency send can CT and impedance-compensated link.
Input access low-voltage dc voltage or the electric main of high frequency electric source, become high-frequency signal by the voltage transformation of input, exports to many (maximum three) high frequency transformers;
High frequency electric source can receive locking, the order of release Voltage-output contact from peripheral control unit; Can receive the control parameter gear setting from peripheral control unit; Described high frequency electric source can be monitored input, output voltage abnormal conditions, and outputting alarm contact point signal.
The former limit of many high frequency transformers is in parallel or be connected in series, and connects the output of high frequency electric source, and secondary respectively connects that a cast-type integral high frequency send can CT.
Cast-type integral high frequency send energy CT to be connected in series the secondary of rear access high frequency transformer by the former limit of many (maximum 15) high frequency CT monomers, and is connected with valve body single-point equipotential; And the high potential that the secondary of every high frequency CT monomer connects separately triggers electronic circuit.
Impedance-compensated link is serially connected between high frequency electric source and high frequency transformer, in order to the leakage reactance of compensation or three high frequency transformers of partial-compensation, reduces the electric stress of high frequency electric source.
Cast-type integral high frequency send and can by a conductive metal pipe is female, through many core-theaded type high frequencies, send and can form by CT monomer by CT, and is fixed by pouring type; It can CT monomer core material be ultracrystallite material that described high frequency send, and former limit is single turn, and secondary is determined the best number of turn according to energy transmission efficiency and design of transformer basic principle.
Cast-type integral high frequency send the conductive metal pipe mother of energy CT to be connected with valve body single-point equipotential, it can each secondary current potential of CT be determined value that cast-type integral high frequency send, the insulation of former limit and secondary, by pouring into a mould dielectric insulation and air insulation forms, realizes each and triggers the electrical isolation between electronic circuit.
High frequency transformer magnetic core material is ultracrystallite material, according to the short-circuit impedance of equivalent load impedance design high frequency transformer in the reasonable scope, meet load variations requirement, make the energy transmission efficiency of high frequency transformer in the reasonable scope, and be applicable to the application requirements of many high frequency transformer former limit parallel connections.
High frequency transformer is realized the insulation of former secondary by pouring technology, its dielectric voltage withstand meets thyristor valve body in the requirement of the ceiling voltage of the time of running.
High frequency electric source is high frequency square wave voltage source, has input power factor high, and harmonic wave is little, and output voltage amplitude, the feature that frequency agile is adjustable can adapt to the load that wide region changes.
Embodiment
Embodiment 1:
As shown in Figure 1, the present embodiment comprises: high frequency voltage source A1, three high frequency transformer B1 and three post cast-type integral high frequencies send can CT C1.Wherein: input access low-voltage dc voltage or the electric main of high frequency voltage source A1, the voltage transformation of input is become to high-frequency signal, export to three high frequency transformer B1; Three former limits of high frequency transformer B1 are connected in parallel, and connect the output of high frequency electric source, and secondary respectively connects a cast-type integral high frequency and send energy CT C1; High frequency send and can by the former limit of maximum 15 high frequency CT monomers, be connected in series the secondary of rear access high frequency transformer by CT, and is connected with valve body single-point equipotential, and the high potential that the secondary of every high frequency CT monomer connects separately triggers electronic circuit ZL.
Described high frequency electric source is high frequency square wave voltage source, has input power factor high, and harmonic wave is little, and output voltage amplitude, the feature that frequency agile is adjustable can adapt to the load that wide region changes.Can receive in addition locking, the order of release Voltage-output contact from peripheral control unit; Can receive the control parameter gear setting from peripheral control unit; Can monitor input, output voltage abnormal conditions, and outputting alarm contact point signal.
Described high frequency transformer is realized the insulation of former secondary by pouring technology, its dielectric voltage withstand meets thyristor valve body in the requirement of the ceiling voltage of the time of running.Described high frequency transformer magnetic core material is ultracrystallite material, according to the short-circuit impedance of equivalent load impedance design high frequency transformer in the reasonable scope, meet load variations requirement, make the energy transmission efficiency of high frequency transformer in the reasonable scope, and be applicable to the application requirements of many high frequency transformer former limit parallel connections.
Described cast-type integral high frequency send and can by a conductive metal pipe is female, through many core-theaded type high frequencies, send and can form by CT monomer by CT, and is fixed by pouring type; It can CT monomer core material be ultracrystallite material that described high frequency send, and former limit is single turn, and secondary is determined the best number of turn according to energy transmission efficiency and design of transformer basic principle.Described cast-type integral high frequency send can the former limit of CT and the insulation of secondary by pouring into a mould dielectric insulation and air insulation forms, realize each and trigger the electrical isolation between electronic circuit.
Embodiment 2:
As shown in Figure 2, the present embodiment comprises: a source of high frequency current A2, three high frequency transformer B2, three post cast-type integral high frequencies send energy CT C2 and impedance-compensated link Cs.Wherein: input access low-voltage dc voltage or the electric main of source of high frequency current A2, the voltage transformation of input is become to high-frequency signal, after the former limit of three high frequency transformer B2 is connected in series, the impedance-compensated link Cs of a termination, an output of a termination source of high frequency current A2; The other end of impedance-compensated link Cs is connected with another output of high frequency voltage source A2.Three high frequency transformer B2 secondary respectively connect a cast-type integral high frequency and send energy CT C1; High frequency send and can by the former limit of maximum 15 high frequency CT monomers, be connected in series the secondary of rear access high frequency transformer by CT, and is connected with valve body single-point equipotential, and the high potential that the secondary of every high frequency CT monomer connects separately triggers electronic circuit ZL.
Described high frequency electric source is high frequency square wave current source, has input power factor high, and harmonic wave is little, can adapt to the load that wide region changes.Can receive in addition locking, the order of release Voltage-output contact from peripheral control unit; Can receive the control parameter gear setting from peripheral control unit; Can monitor input, output voltage abnormal conditions, and outputting alarm contact point signal.
Described high frequency transformer is realized the insulation of former secondary by pouring technology, its dielectric voltage withstand meets thyristor valve body in the requirement of the ceiling voltage of the time of running.Described high frequency transformer magnetic core material is ultracrystallite material, has lower leakage reactance.
Described cast-type integral high frequency send and can by a conductive metal pipe is female, through many core-theaded type high frequencies, send and can form by CT monomer by CT, and is fixed by pouring type; It can CT monomer core material be ultracrystallite material that described high frequency send, and former limit is single turn, and secondary is determined the best number of turn according to energy transmission efficiency and design of transformer basic principle.Described cast-type integral high frequency send can the former limit of CT and the insulation of secondary by pouring into a mould dielectric insulation and air insulation forms, realize each and trigger the electrical isolation between electronic circuit.
Described impedance-compensated link Cs, in order to the leakage reactance of compensation or three high frequency transformers of partial-compensation, reduces the voltage stress of source of high frequency current.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, although the present invention is had been described in detail with reference to above-described embodiment, those of ordinary skill in the field are to be understood that: still can modify or be equal to replacement the specific embodiment of the present invention, and do not depart from any modification of spirit and scope of the invention or be equal to replacement, it all should be encompassed in the middle of claim scope of the present invention.
Claims (12)
1. a high potential electronic circuit high-power high-frequency power supply system, is characterized in that, described system comprises that high frequency electric source, high frequency high voltage transformer, cast-type integral high frequency send energy CT and impedance-compensated link;
Described high frequency electric source, high frequency high voltage transformer, cast-type integral high frequency send and can be connected successively with impedance-compensated link by CT;
Described high frequency electric source comprises source of high frequency current and high frequency voltage source.
2. a kind of high potential electronic circuit high-power high-frequency power supply system as claimed in claim 1, is characterized in that, low-voltage dc voltage or electric main, high frequency voltage source and high frequency transformer are connected successively; The former limit of described high frequency transformer is connected in parallel, and secondary respectively connects a cast-type integral high frequency and send energy CT.
3. a kind of high potential electronic circuit high-power high-frequency power supply system as claimed in claim 1, is characterized in that, low-voltage dc voltage or electric main, source of high frequency current and high frequency transformer are connected successively; The former limit of described high frequency transformer is connected in series, the impedance-compensated link Cs of a termination, the output of another termination source of high frequency current; The other end of described impedance-compensated link Cs is connected with high-frequency current source output terminal.
4. a kind of high potential electronic circuit high-power high-frequency power supply system as claimed in claim 1, it is characterized in that, described cast-type integral high frequency send and can comprise that a conductive metal pipe mother send and can form by CT monomer through many core-theaded type high frequencies, fixes by pouring type by CT.
5. a kind of high potential electronic circuit high-power high-frequency power supply system as claimed in claim 1, is characterized in that, described cast-type integral high frequency send and can comprise that the former limit of 15 high frequency CT monomers is connected in series formation by CT.
6. a kind of high potential electronic circuit high-power high-frequency power supply system as claimed in claim 4, is characterized in that, the high potential that the secondary of described high frequency CT monomer connects separately triggers electronic circuit ZL.
7. a kind of high potential electronic circuit high-power high-frequency power supply system as claimed in claim 4, it is characterized in that, described high frequency CT monomer core material is ultracrystallite material, and former limit is single turn, and secondary is determined the number of turn according to energy transmission efficiency and design of transformer basic principle.
8. a kind of high potential electronic circuit high-power high-frequency power supply system as claimed in claim 1, is characterized in that, described cast-type integral high frequency send the conductive metal pipe mother of energy CT to be connected with valve body single-point equipotential.
9. a kind of high potential electronic circuit high-power high-frequency power supply system as claimed in claim 4, is characterized in that, described high frequency send can the former limit of CT monomer and the insulation of secondary by pouring into a mould dielectric insulation and air insulation forms.
10. a kind of high potential electronic circuit high-power high-frequency power supply system as claimed in claim 1, is characterized in that, described high frequency transformer magnetic core material is ultracrystallite material.
11. 1 kinds of high potential electronic circuit high-power high-frequency method of supplying power, is characterized in that, described method comprises
(1) high frequency electric source access low-voltage dc voltage or electric main;
(2) become high-frequency signal to export high frequency transformer to the voltage transformation of access.
12. a kind of high potential electronic circuit high-power high-frequency method of supplying power as claimed in claim 11, is characterized in that, described high frequency electric source can receive locking, the order of release Voltage-output contact from peripheral control unit; Can receive the control parameter gear setting from peripheral control unit; Described high frequency electric source can be monitored input, output voltage abnormal conditions, and outputting alarm contact point signal.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107070246A (en) * | 2017-04-19 | 2017-08-18 | 南京南瑞继保电气有限公司 | A kind of energy supplying system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201904717U (en) * | 2010-09-20 | 2011-07-20 | 中电普瑞科技有限公司 | High-frequency energy-transferring system for high-potential electronic plate of high-voltage thyristor |
| CN102377253A (en) * | 2011-11-14 | 2012-03-14 | 湖北三环发展股份有限公司 | Energy acquiring and electromagnetic triggering system of high-voltage thyristor valve bank |
| CN202513817U (en) * | 2012-04-01 | 2012-10-31 | 重庆市电力公司南岸供电局 | High-frequency energy conveying system used for solid compound reactive equipment switching switch |
| CN102969723A (en) * | 2012-07-31 | 2013-03-13 | 国家电网公司 | Integrated energy extracting device for power electronic equipment |
-
2013
- 2013-12-11 CN CN201310674593.5A patent/CN103618436A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201904717U (en) * | 2010-09-20 | 2011-07-20 | 中电普瑞科技有限公司 | High-frequency energy-transferring system for high-potential electronic plate of high-voltage thyristor |
| CN102377253A (en) * | 2011-11-14 | 2012-03-14 | 湖北三环发展股份有限公司 | Energy acquiring and electromagnetic triggering system of high-voltage thyristor valve bank |
| CN202513817U (en) * | 2012-04-01 | 2012-10-31 | 重庆市电力公司南岸供电局 | High-frequency energy conveying system used for solid compound reactive equipment switching switch |
| CN102969723A (en) * | 2012-07-31 | 2013-03-13 | 国家电网公司 | Integrated energy extracting device for power electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107070246A (en) * | 2017-04-19 | 2017-08-18 | 南京南瑞继保电气有限公司 | A kind of energy supplying system and method |
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Effective date of registration: 20170609 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant after: State Grid Corporation of China Applicant after: China Electric Prime Technology Co., Ltd. Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant before: State Grid Corporation of China Applicant before: State Grid Smart Grid Institute Applicant before: China Electric Prime Technology Co., Ltd. |
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Application publication date: 20140305 |