CN105406726B - High pressure weak current decompression and flow increasing device - Google Patents
High pressure weak current decompression and flow increasing device Download PDFInfo
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- CN105406726B CN105406726B CN201510950180.4A CN201510950180A CN105406726B CN 105406726 B CN105406726 B CN 105406726B CN 201510950180 A CN201510950180 A CN 201510950180A CN 105406726 B CN105406726 B CN 105406726B
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- armature winding
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- energy buffer
- frequency transformer
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- 230000006837 decompression Effects 0.000 title claims abstract description 17
- 230000003044 adaptive effect Effects 0.000 claims abstract description 20
- 238000006243 chemical reaction Methods 0.000 claims abstract description 9
- 238000004804 winding Methods 0.000 claims description 61
- 229910000859 α-Fe Inorganic materials 0.000 claims description 21
- 239000003990 capacitor Substances 0.000 claims description 12
- 238000005070 sampling Methods 0.000 claims description 10
- 230000009466 transformation Effects 0.000 claims description 6
- 230000005669 field effect Effects 0.000 claims description 4
- 230000008859 change Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 239000013589 supplement Substances 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000004907 flux Effects 0.000 description 3
- 210000001367 artery Anatomy 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
- H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
- H02M5/22—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M5/275—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M5/293—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/02—Adaptations of transformers or inductances for specific applications or functions for non-linear operation
- H01F38/04—Adaptations of transformers or inductances for specific applications or functions for non-linear operation for frequency changing
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Dc-Dc Converters (AREA)
Abstract
The present invention is a kind of high pressure weak current decompression and flow increasing device, including preposition energy buffer unit, and the signal input part connection of the preposition energy buffer unit needs the high voltage being depressured；Adaptive high frequency high voltage switch unit, the signal acquisition input of the adaptive high frequency high voltage switch unit connect the signal output part of preposition energy buffer unit；Pulsed high-frequency transformer unit, the signal output part of the signal input part connection adaptive high frequency high voltage switch unit of the pulsed high-frequency transformer unit, the signal output part of pulsed high-frequency transformer unit export the voltage after final conversion by the active supplement electric capacity pool unit for providing the stable output of active compensation for high pressure weak current decompression flow-increasing device.The present invention can change to the weak current below 10mA ranks, and solve the problems, such as magnetic eddy-current loss, ensure that the effect of ultimate current conversion.The present invention be applied to it is more than any 10kV ranks, the high voltage below 10mA ranks, weak current power change.
Description
Technical field
The invention belongs to power industry potential device field, specifically a kind of high pressure weak current decompression and flow increasing device.
Background technology
At present, China's high voltage conversion be large driven current density, for the weak current voltage transformation under 10mA ranks due to
The problems such as magnetic eddy-current loss, can not solve the problems, such as decompression for a long time.Although some high frequency transformers can reach decompression purpose but conversion
Efficiency is too low, generally less than 50%, is unable to reach practical purpose.Meanwhile the decompression of 10kV voltages all carries to device and winding conducting wire
High requirement is gone out, in addition to only a few high voltage power semiconductor device can be with trouble free service, 10kV is already close in its work
Limit, and such high voltage power semiconductor device is generally for loud-break switch design, power attenuation is larger, does not apply to
In smaller current operating mode, the transformation work of high pressure weak current also can not be just completed.
The content of the invention
It is above-mentioned in order to solve the problems, such as, can be to 10kV the invention provides a kind of high pressure weak current decompression and flow increasing device
Below above 10mA high-voltage power supply is converted into below 30V voltages, and can reach the purpose of decompression with relatively low loss, together
When larger electric current is provided.
To achieve the above object, the technical solution adopted in the present invention is as follows：
A kind of high pressure weak current decompression and flow increasing device, it includes being used for the preposition energy snubber list for adapting to high-voltage power supply
Member, the signal input part connection of the preposition energy buffer unit need the high voltage being depressured；
The information of unit is rushed for gathering preposition slow energy and the adaptive high frequency of corresponding strategy is used according to collection information
High voltage switch unit, the signal acquisition input of the adaptive high frequency high voltage switch unit connect preposition energy buffer unit
Signal output part；
For carrying out the pulsed high-frequency transformer unit of transformation processing, the signal input of the pulsed high-frequency transformer unit
The signal output part of end connection adaptive high frequency high voltage switch unit, the signal output part of pulsed high-frequency transformer unit by using
Exported finally in the active supplement electric capacity pool unit that the stable output of active compensation is provided for high pressure weak current decompression flow-increasing device
Voltage after conversion.
As limitation of the invention：The preposition energy buffer unit includes the first of the high-voltage large-capacity of 10 series connection
Capacitor；
The adaptive high frequency high voltage switch unit includes microcontroller, FET array, and sampling module, described
The signal input part of sampling module gathers each point voltage of the capacitor of series connection first of preposition energy buffer unit, sampling module
Signal output part connects the collection signal input part of microcontroller, and the control signal output of microcontroller passes through field-effect array
Connect the signal input part of pulsed high-frequency transformer unit.
As limitation of the invention further：The pulsed high-frequency transformer unit includes two annular iron in the shape of a frame
Ferrite core, armature winding, secondary windings, in transformer base, armature winding is included in the annular ferrite core
The first armature winding, the second armature winding, the 3rd armature winding individually to be worked under the control of microcontroller, described first
Armature winding, the second armature winding, the 3rd armature winding connect respectively corresponding to FET array, and the first armature winding with
Second armature winding is fixedly arranged on the both ends of first annular ferrite core respectively, the secondary windings be fixedly arranged on first it is primary around
Between group and the second armature winding, and positioned at the middle part of first annular ferrite core；3rd armature winding is fixedly arranged on
On second annular ferrite core, and with being provided with first ring of the first armature winding, the second armature winding, secondary windings
In shape FERRITE CORE is not generally aligned in the same plane, but it is vertically arranged with first annular ferrite core；
The active compensating electric capacity pool unit includes several powerful second capacitors in parallel, and described all second
Capacitor is connected to the both ends of the secondary windings of pulsed high-frequency transformer unit.
As a result of above technical scheme, the present invention can reach following technique effect：
（1）The present invention has preposition energy buffer unit, and row buffering, combining adaptive high frequency can be entered to weak current power
High voltage switch unit, using tandem principle and the energy storage principle of capacitor, capacitance partial pressure is carried out to high-voltage power supply and is stored up with energy
To deposit, the driving pulse high frequency transformer unit that released energy when adaptive high frequency high voltage switch unit is opened respectively is depressured,
And solves the pressure-resistant problem of FET array in adaptive high frequency high voltage switch unit simultaneously；
（2）The core component of the adaptive high frequency high voltage switch unit of the present invention uses microprocessor control, can basis
Actual conditions use Different Strategies driving FET array, and adjustment in real time keeps whole high pressure weak current decompression and flow increasing device
Highest conversion efficiency；
（3）The part of the pulsed high-frequency transformer unit of the present invention, utilizes low-resistance corronil winding and large-sized annular iron
The technological means such as ferrite core, high frequency transformer starting current is reduced, at the same it is further to flux loss caused by magnetic coupling
Reduce, 2 points of pulsed high-frequency transformer parts for alloing the present apparatus are operated in that primary operating current is relatively low, work with reference to more than
Become possibility in pulse spacing short environment.
In summary, the present invention can change to the weak current below 10mA ranks, and solve magnetic eddy-current loss
The problem of, it ensure that the effect of ultimate current conversion.
The present invention be applied to it is more than any 10kV ranks, the high voltage below 10mA ranks, weak current power turn
Change.
Brief description of the drawings
Fig. 1 is the theory diagram of the embodiment of the present invention；
Fig. 2 is that middle arteries of the embodiment of the present invention are leapt high the structural representation of frequency power transformer unit 3；
Fig. 3 is the circuit theory diagrams of three groups of FETs 22 of the adaptive high voltage switch unit 2 of the embodiment of the present invention.
In figure：1-preposition energy buffer unit, 2-adaptive high frequency high voltage switch unit, 21-microcontroller, 22-
FET array, 23-sampling module, 3-pulsed high-frequency transformer unit, 31-annular ferrite core, 32-it is primary around
Group, 33-secondary windings, 4-it is active supplement electric capacity pool unit.
Embodiment
A kind of high pressure weak current decompression and flow increasing device of embodiment
The present embodiment is a kind of high pressure weak current decompression and flow increasing device, and such as Fig. 1, it includes：
（1）Preposition energy buffer unit 1, it is to more than 10kV ranks for adapting to high-voltage power supply, in the present embodiment
High voltage power supply is changed, in order to make preposition energy buffer unit 1 adapt to the high-voltage power supply of more than 10kV ranks, the present embodiment
The middle high-voltage large-capacity using 10 series connection（1Kv/1000uF）The first capacitor as preposition energy buffer unit 1, it is described
The signal input part connection of preposition energy buffer unit 1 needs the high voltage being depressured.
（2）Adaptive high frequency high voltage switch unit 2, the information of unit 1 is rushed and according to collection for gathering preposition slow energy
Information uses corresponding strategy, the adaptive high frequency high-voltage switch gear list, and 2 signal acquisition input connects preposition energy snubber list
The signal output part of member 1.Adaptive high frequency high voltage switch unit 2 in the present embodiment as shown in figure 1, including microcontroller 21,
Three FET arrays 22, and sampling module 23, the signal input part of the sampling module 23 gather preposition energy snubber
The each point voltage of the capacitor of series connection first of unit 1, the collection letter of the signal output part connection microcontroller 21 of sampling module 23
Number input, three control signal outputs of microcontroller 21 pass through the out-put supply signal of field-effect array 22 respectively.
And field effect effect pipe array 22 is as shown in figure 3, the circuit including being in series by several FETs, and every group
The series circuit all same of FET.
（3）Pulsed high-frequency transformer unit 3, if for carrying out transformation processing, the pulsed high-frequency to high pressure current and power supply
The signal output part of the signal input part connection adaptive high frequency high voltage switch unit 2 of transformer unit 3, pulsed high-frequency transformer
The signal output part of unit 3 for depressurizing flow-increasing device for high pressure weak current by providing active compensation the stable active benefit exported
Charging reservoir unit 4 exports the voltage after final conversion.
Pulsed high-frequency transformer unit 3 in the present embodiment is as shown in Fig. 2 by two circular ferrite magnetic in frame shaped
Core 31, armature winding 32, secondary windings 33 form, and the armature winding 32 in the present embodiment is provided with three, it is each primary around
The corresponding FET array 22 of group 32, and due to control of the microcontroller 21 to FET 22, three armature windings 32
Separately work respectively, it is impossible to while work together.In order to ensure that armature winding 32 is provided separately with secondary windings 33, this reality
Apply and secondary windings 33 be fixed at one of centre position of annular ferrite core 31 shown in such as Fig. 2, two primary around
Group 32 is fixedly arranged on the both ends of the annular ferrite core 31 respectively；It is installed with another annular ferrite core 31 at the beginning of the 3rd
Level winding 32, and the position that sets of the 3rd armature winding 32 be not located at the first two armature winding 32, secondary windings 33 it is same
In plane, and it is vertically arranged with the plane where above-mentioned two armature winding 32, secondary windings 33.
In addition, the no-load voltage ratio of transformer is arranged to 500 in the present embodiment：1, can be 1 volt by 500 volts of voltage transformations.Due to
The pulsed high-frequency transformer working environment of the present embodiment is more special, and its primary operating current is relatively low, working pulse interval is short, passes
System high frequency transformer can not work.In order to solve the problems, such as that particular job environment is brought, the pulsed high-frequency transformer unit 3 is adopted
With large-sized annular FERRITE CORE reduce high frequency magnetic resistance, using low-resistance corronil replaces commonly copper enamel-covered wire coiling winding come
Adapt to its working environment.
And the present embodiment middle arteries are leapt high, the operation principle of frequency power transformer unit 3 is：At the beginning of pulsed high-frequency transformer unit 3
When level winding coil accesses the electric energy by coming on preposition energy buffer unit 1 through adaptive high frequency high voltage switch unit, magnetic core
In just produce alternating flux, alternating flux is represented with φ.φ in primary, secondary windings is identical, and φ is harmonic function, table
For φ=φ msin ω t.From Faraday's electromagnetic induction law, the induced electromotive force in primary, secondary windings is e1=- N1d
φ/dt、e2=-N2dφ/dt.N1, N2 are the primary, number of turn of secondary windings in formula.U1=- e1 as shown in Figure 2, U2=e2, it is multiple
Virtual value is U1=- E1=jN1 ω Φ, U2=E2=- jN2 ω Φ, makes k=N1/N2, claims the no-load voltage ratio of transformer.U1/ as available from the above equation
The ratio between U2=- N1/N2=- k, i.e. transformer primary, secondary coil voltage effective value, equal to its turn ratio and former and deputy coil voltage
Position difference is π.
And then draw：
U1/U2=N1/N2
In the case of no-load current is negligible, there is I1/ I2=- N2/N1, i.e., primary, secondary winding current virtual value
Size is inversely proportional with its number of turn, and phase difference π.
And then it can obtain
I1/ I2=N2/N1
It can learn that secondary windings 32 will export low-voltage electric energy by principles above, keeping in elevator belt through active compensating electric capacity pond carries
Ability, and final output can use low-tension supply.
And the active compensating electric capacity pool unit 4 in the present embodiment then includes the high-power of several parallel connections（1uF/1kV）'s
Second capacitor, all second capacitors are connected to the both ends of the secondary windings of pulsed high-frequency transformer unit.
Claims (1)
1. a kind of high pressure weak current decompression and flow increasing device, it includes
For adapting to the preposition energy buffer unit of high-voltage power supply, the signal input part connection of the preposition energy buffer unit
Need the high voltage being depressured；
For gathering the information of preposition energy buffer unit and the adaptive high frequency high pressure of corresponding strategy being used according to collection information
Switch element, the signal acquisition input of the adaptive high frequency high voltage switch unit connect the signal of preposition energy buffer unit
Output end；
For carrying out the pulsed high-frequency transformer unit of transformation processing, the signal input part of the pulsed high-frequency transformer unit connects
Be connected to the signal output part for adapting to high-frequency and high-voltage switch element, the signal output part of pulsed high-frequency transformer unit by for for
The active compensating electric capacity pool unit that high pressure weak current decompression flow-increasing device provides the stable output of active compensation exports final conversion
Voltage afterwards；
The preposition energy buffer unit includes the first capacitor of the high-voltage large-capacity of 10 series connection；
The adaptive high frequency high voltage switch unit includes microcontroller, FET array, and sampling module, the sampling
The signal input part of module gathers each point voltage of the capacitor of series connection first of preposition energy buffer unit, the signal of sampling module
Output end connects the collection signal input part of microcontroller, and the control signal output of microcontroller is connected by field-effect array
The signal input part of pulsed high-frequency transformer unit；
It is characterized in that：The pulsed high-frequency transformer unit include two annular ferrite cores in the shape of a frame, armature winding,
Secondary windings, in transformer base, armature winding includes dividing under the control of the micro-controller the annular ferrite core
The first armature winding, the second armature winding, the 3rd armature winding not worked independently, first armature winding, the second primary
Winding, the 3rd armature winding connect corresponding FET array respectively, and the first armature winding and the second armature winding are distinguished
The both ends of first annular ferrite core are fixedly arranged on, the secondary windings is fixedly arranged on the first armature winding and the second armature winding
Between, and positioned at the middle part of first annular ferrite core；3rd armature winding is fixedly arranged on second circular ferrite
On magnetic core, and with being provided with first annular ferrite core not position of the first armature winding, the second armature winding, secondary windings
In in same plane, but it is vertically arranged with first annular ferrite core；
The active compensating electric capacity pool unit includes several powerful second capacitors in parallel, all second electric capacity
Device is connected to the both ends of the secondary windings of pulsed high-frequency transformer unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510950180.4A CN105406726B (en) | 2015-12-18 | 2015-12-18 | High pressure weak current decompression and flow increasing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510950180.4A CN105406726B (en) | 2015-12-18 | 2015-12-18 | High pressure weak current decompression and flow increasing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105406726A CN105406726A (en) | 2016-03-16 |
| CN105406726B true CN105406726B (en) | 2018-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510950180.4A Active CN105406726B (en) | 2015-12-18 | 2015-12-18 | High pressure weak current decompression and flow increasing device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1348248A (en) * | 2001-09-10 | 2002-05-08 | 南京航空航天大学 | High-frequency AC/AC converter with AC link |
| CN201422078Y (en) * | 2008-10-07 | 2010-03-10 | 漳州科华技术有限责任公司 | Three-stage intelligent regulating transducer device used for energy-saving elevator safety protection power supply |
| CN101917124A (en) * | 2010-06-30 | 2010-12-15 | 国家电网公司 | Power supply device |
| CN102570851A (en) * | 2012-02-01 | 2012-07-11 | 樊远征 | Two-way PWM chopping type voltage stabilizing transformer |
| CN102664094A (en) * | 2012-05-23 | 2012-09-12 | 天津天能变压器有限公司 | Single-phase dry type converter transformer for suppressing polysilicon and voltage regulation way thereof |
| CN205249056U (en) * | 2015-12-18 | 2016-05-18 | 国网冀北电力有限公司张家口供电公司 | High pressure weak current steps down and increases a class device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2526616A2 (en) * | 2010-01-22 | 2012-11-28 | Massachusetts Institute of Technology | Grid-tied power conversion circuits and related techniques |
-
2015
- 2015-12-18 CN CN201510950180.4A patent/CN105406726B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1348248A (en) * | 2001-09-10 | 2002-05-08 | 南京航空航天大学 | High-frequency AC/AC converter with AC link |
| CN201422078Y (en) * | 2008-10-07 | 2010-03-10 | 漳州科华技术有限责任公司 | Three-stage intelligent regulating transducer device used for energy-saving elevator safety protection power supply |
| CN101917124A (en) * | 2010-06-30 | 2010-12-15 | 国家电网公司 | Power supply device |
| CN102570851A (en) * | 2012-02-01 | 2012-07-11 | 樊远征 | Two-way PWM chopping type voltage stabilizing transformer |
| CN102664094A (en) * | 2012-05-23 | 2012-09-12 | 天津天能变压器有限公司 | Single-phase dry type converter transformer for suppressing polysilicon and voltage regulation way thereof |
| CN205249056U (en) * | 2015-12-18 | 2016-05-18 | 国网冀北电力有限公司张家口供电公司 | High pressure weak current steps down and increases a class device |
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| Publication number | Publication date |
|---|---|
| CN105406726A (en) | 2016-03-16 |
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Inventor after: Ma Jin Inventor after: Ding Bin Inventor after: Xu Da Inventor after: Wang Yong Inventor after: Ge Wei Inventor after: Sun Wei Inventor after: Jiao Minming Inventor after: Kang Tiefeng Inventor after: Li Anqi Inventor before: Ding Bin Inventor before: Xu Da Inventor before: Li Anqi Inventor before: Ge Wei Inventor before: Sun Wei Inventor before: Wang Yong Inventor before: Jiao Minming Inventor before: Kang Tiefeng |
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