CN106533131A - DC converter valve with pulse excitation device - Google Patents
DC converter valve with pulse excitation device Download PDFInfo
- Publication number
- CN106533131A CN106533131A CN201611024180.2A CN201611024180A CN106533131A CN 106533131 A CN106533131 A CN 106533131A CN 201611024180 A CN201611024180 A CN 201611024180A CN 106533131 A CN106533131 A CN 106533131A
- Authority
- CN
- China
- Prior art keywords
- liquid metal
- converter valve
- pulse
- electric field
- iron core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- H02M1/00—Details of apparatus for conversion
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20945—Thermal management, e.g. inverter temperature control
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Electrically Driven Valve-Operating Means (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention relates to a DC converter valve with a pulse excitation device. The DC converter valve comprises a liquid metal heat exchange assembly, a pulse excitation assembly and a DC electric field switch, wherein the liquid metal heat exchange assembly and the pulse excitation assembly are connected through the DC electric field switch, the liquid metal heat exchange assembly comprises an insulation heat conduction layer, an insulation leather pipe and a liquid metal, an outer peripheral of a DC converter valve body is wrapped in the insulation heat conduction layer, an inner wall of the insulation heat conduction layer contacts with an outer wall of the DC converter valve body, an outer peripheral of the insulation heat conduction layer is wrapped in the insulation leather pipe, the liquid metal is filled into a gap between the insulation leather pipe and the insulation heat conduction layer, the pulse excitation assembly comprises a pulse transformer, a tap joint, a PWM PDM controller and a secondary pulse winding, and the PWM PDM controller is sequentially electrically connected with the pulse transformer, the tap joint and the secondary pulse winding. Compared with the prior art, the DC converter valve is advantaged in that the PWM is employed to control heat radiation of the liquid metal, and the DC converter valve further has properties of high flexibility, high efficiency, small size, low power consumption and long service life.
Description
Technical field
The present invention relates to liquid metal heat radiation control technology field, more particularly to a kind of direct current of tape pulse exciting bank is changed
Stream valve.
Background technology
HVDC Transmission Technology is to solve the problems, such as long range, large capacity transmission and the maximally effective technological means of Power System Interconnection, high
Frequently with HVDC Transmission Technology in pressure power transmission engineering, AC rectification is direct current mainly in sending end current conversion station by the technology
Electric energy is sent to receiving end by DC power transmission line by electricity, and receiving end current conversion station again DC inverter into alternating current, use by supply
Electric load.Wherein, the nucleus equipment of sending end current conversion station is exactly DC converter valve, value tens sending end current conversion station into
In complete equipment, its cost accounts for the 22-25% of sending end current conversion station complete set of equipments total value, so the performance pair of DC converter valve
It is most important for whole power transmission engineering.And the quality of cooling system cooling effect directly affects direct current in DC converter valve
The performance of the change of current performance of converter valve, so the radiating effect for improving DC converter valve is a very important problem.
DC converter valve radiating at present mainly adopts water-cooled, takes away the heat that valve body is produced using deionized water, so as to
Reach radiating purpose.The liquid metal heat radiation system for having a kind of employing liquid metal to radiate DC converter valve in prior art
System, cooling system include that the internal liquid metal heat radiation device containing liquid metal pipeline, inside have the first heat exchange of two pipelines
There are the second heat exchanger of a pipeline, in First Heat Exchanger a pipeline and the connection of liquid metal pipeline in device and inside, are formed
Liquid metal closed circuit, the pipeline connection in another pipeline and the second heat exchanger in First Heat Exchanger, forms deionization
Water-flow circuit.The liquid metal heat radiation system is driven using electromagnetic pump, and specifically, electromagnetic pump provides a pair to liquid metal and hangs down
Straight intersecting magnetic field and electric current so that the liquid metal in pipeline by the electromagnetic force along duct orientation, so as to promote liquid gold
Category flows in pipeline, and the size of liquid metal institute stress is adjusted by the size for changing magnetic field intensity or electric current, enters
And the flow velocity of adjustment liquid metal, reach the purpose of adjustment radiating effect.
However, above DC converter valve radiating electromagnetic pump used, when big flow liquid metal is transmitted, need configuration compared with
Big stator winding, in axial induction power, corresponding electromagnetism pump volume is larger, is unfavorable for flexible operating, comes from economic angle
See.In addition, if the flow velocity changed by liquid metal, needs to adjust magnetic field intensity or electric current is big
It is little, and the controllable factor of this electromagnetic pump type of drive only has the flow velocity of liquid metal, it is impossible to control liquid metal state,
Other state parameters such as efficiency, are unfavorable for flexibly control.
The content of the invention
To overcome problem present in correlation technique, the present invention to provide a kind of DC converter valve of tape pulse exciting bank.
The present invention provides a kind of DC converter valve of tape pulse exciting bank, including liquid metal heat-exchanging component, pulse swash
Component and DC electric field switch are encouraged, the liquid metal heat-exchanging component and pulse excitation component are connected by DC electric field switch
Connect;The liquid metal heat-exchanging component includes DC converter valve body, thermal insulation layer, insulation leather hose and liquid metal, described
Thermal insulation layer is wrapped in the periphery of the DC converter valve body, the inwall of the thermal insulation layer and the DC converter valve
The wall contacts of valve body, the insulation leather hose are wrapped in the periphery of the thermal insulation layer, and the liquid metal is filled in institute
State the space between insulation leather hose and thermal insulation layer;The pulse excitation component include magnetic pole, pulse transformer, tap,
PWM PDM keyers, secondary pulses winding and iron core;The DC electric field switch and the liquid metal contacts, it is described
Pulse transformer and tap are wound on one end of the iron core, and the secondary pulses winding technique is in the another of the iron core
End, the tap are connected with DC electric field switch by wire, and the secondary pulses winding passes through wire and the magnetic
Pole connects, and the PWM PDM keyers are electrically connected with the pulse transformer, tap and secondary pulses winding successively
Connect.
Preferably, the thermal insulation layer is ceramic silica gel.
Preferably, the iron core is high magnetic permeability iron core.
Preferably, the PWM PDM keyers are linear high-performance current mode controller.
Preferably, the liquid metal is gallium-indium alloy liquid metal.
The technical scheme that embodiments of the invention are provided can include following beneficial effect:
The present invention provides a kind of DC converter valve of tape pulse exciting bank, including liquid metal heat-exchanging component, pulse swash
Component and DC electric field switch are encouraged, the liquid metal heat-exchanging component and pulse excitation component are connected by DC electric field switch
Connect;The liquid metal heat-exchanging component includes DC converter valve body, thermal insulation layer, insulation leather hose and liquid metal, described
Thermal insulation layer is wrapped in the periphery of the DC converter valve body, the inwall of the thermal insulation layer and the DC converter valve
The wall contacts of valve body, the insulation leather hose are wrapped in the periphery of the thermal insulation layer, and the liquid metal is filled in institute
State the space between insulation leather hose and thermal insulation layer;The pulse excitation component include magnetic pole, pulse transformer, tap,
PWM PDM keyers, secondary pulses winding and iron core;The DC electric field switch and the liquid metal contacts, it is described
Pulse transformer and tap are wound on one end of the iron core, and the secondary pulses winding technique is in the another of the iron core
End, the tap are connected with DC electric field switch by wire, and the secondary pulses winding passes through wire and the magnetic
Pole connects, and the PWM PDM keyers are electrically connected with the pulse transformer, tap and secondary pulses winding successively
Connect.The present invention controls the radiating of liquid metal using PWM PDM keyers, and PWM PDM keyers are by control
The parameters such as duration of small-power impulse waveform, pulse duty factor, so as to control the flow velocity of liquid metal in DC converter valve,
The state parameters such as state, efficiency.And, in the present invention pulse excitation device volume adopted by DC converter valve is less, favorably
In cost-effective, there is flexibility height, efficiency high, small volume, low-power consumption, life-span length.
It should be appreciated that the general description of the above and detailed description hereinafter are only exemplary and explanatory, not
The present invention can be limited.
Description of the drawings
During accompanying drawing herein is merged in specification and the part of this specification is constituted, show the enforcement for meeting the present invention
Example, and be used for explaining the principle of the present invention together with specification.
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, without having to pay creative labor, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is a kind of structural representation of the DC converter valve of tape pulse exciting bank provided in an embodiment of the present invention.
Symbol is represented:
1- liquid metal heat-exchanging components, 2- pulse excitation components, 3- DC electric fields switch, 11- DC converter valve bodies,
12- thermal insulation layers, 13- insulation leather hoses, 14- liquid metals, 21- magnetic poles, 22- pulse transformers, 23-PWM pulsewidth modulation controls
Device processed, 24- secondary pulses windings, 25- taps, 26- iron cores.
Specific embodiment
Here in detail exemplary embodiment will be illustrated, its example is illustrated in the accompanying drawings.Explained below is related to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary embodiment
Described in embodiment do not represent and the consistent all embodiments of the present invention.Conversely, they be only with as appended by
The example of consistent apparatus and method in terms of some described in detail in claims, the present invention.
Fig. 1 is a kind of structural representation of the DC converter valve of tape pulse exciting bank provided in an embodiment of the present invention.
In Fig. 1, the DC converter valve of tape pulse exciting bank includes liquid metal heat-exchanging component 1,2 and of pulse excitation component
DC electric field switchs 3 three parts, and liquid metal heat-exchanging component 1 and pulse excitation component 2 are connected by DC electric field switch 3.Liquid
State metal heat-exchange component 1 includes DC converter valve body 11, thermal insulation layer 12, insulation leather hose 13 and liquid metal 14, insulation
Heat-conducting layer 12 is wrapped in the periphery of DC converter valve body 11, and the inwall of thermal insulation layer 12 is outer with DC converter valve body 11
Wall is contacted, and the leather hose 13 that insulate is wrapped in the periphery of thermal insulation layer 12, and liquid metal 14 is filled in insulation leather hose 13 and insulation
Space between heat-conducting layer 12.DC converter valve body 11, thermal insulation layer 12,13 4 part of liquid metal 14 and insulation leather hose
Structure according to from outside to inside order arrange, be conducive to by the heat produced by DC converter valve body 11 pass through insulating heat-conductive
Layer 12 is transferred to the liquid metal 14 in insulation leather hose 13, takes away DC converter valve valve body 11 by the flowing of liquid metal 14
Heat, so as to reach radiating purpose.Wherein, thermal insulation layer 12 had both ensured itself and DC converter valve insulated contact, and energy
The heat of DC converter valve is transmitted fully, thermal insulation layer 12 adopts ceramic silica gel in the present embodiment, containing many in ceramic silica gel
Hole is planted, when with semiconductor doping, the hole in ceramic silica gel can absorb electronics so that ceramic silica gel has anti-well
Electrostatic function, finally realizes isolating for DC converter valve body 11 and 14 two kinds of electrical bodies of liquid metal.
Pulse excitation component 2 includes magnetic pole 21, pulse transformer 22, tap 25, PWM PDM keyers 23, secondary
Level pulse winding 24 and iron core 26;DC electric field switch 3 is contacted with liquid metal 14,25 coiling of pulse transformer 22 and tap
In one end of iron core 26, secondary pulses winding 24 is wound on the other end of iron core 26, and tap 25 passes through wire and DC electric field
Switch 3 connects, and secondary pulses winding 24 is connected with magnetic pole 21 by wire, and PWM PDM keyers 23 are become with pulse successively
Depressor 22, tap 25 and secondary pulses winding 24 are electrically connected.DC electric field switch 3 controls pulse excitation component 2 and provides electricity
Stream, liquid metal 14 produces movement under the influence of a magnetic field, so as to take away the heat produced by DC converter valve body 11.PWM
PDM keyer 23 can control the pulse sent by pulse transformer 22, and specifically, PWM PDM keyers 23 can
With the positive-negative polarity of control pulse, the duration of pulse, the response time of pulse, current waveform, amplitude intensity, dutycycle,
So as to more neatly control the state parameter such as the flow velocity of liquid metal 14, state, efficiency in DC converter valve, it is better achieved
Heat sinking function of the liquid metal 14 to DC converter valve body 11.In the embodiment of the present invention iron core 26 be high magnetic permeability iron core, iron
Core magnetic conductivity height is conducive to the propagation in magnetic field, so as to be conducive to pulse excitation component 2 to realize to the flexible of 14 flow velocity of liquid metal
Control.
During DC converter valve normal work, many heats can be produced, cause DC converter valve body 11 to generate heat very serious,
The heat of DC converter valve body 11 passes to liquid metal 14 by ceramic silica gel.Magnetic pole 21 in pulse excitation component 2 is produced
Magnetisation field, secondary pulses winding 24 are connected with magnetic pole 21 by wire;Liquid metal 14, DC electric field switch 3, pulse transformer
22 and tap 25 formed closed-loop path.According to electromagnetic induction principle, tap 25 of the liquid metal 14 in pulse transformer 22
In the case that the sense of current, the offer magnetic direction of secondary pulses winding 24 are provided, can take away along insulation 13 internal flow of leather hose
The heat of DC converter valve body 11.It is controlled using 23 pulse transformer 22 of PWM PDM keyers, can be changed
The positive-negative polarity of 22 exported pulse of pulse transformer, so as to change the positive-negative polarity of DC electric field switch 3, finally changes liquid
The flow direction of metal 14.PWM PDM keyers 23 can also be controlled to secondary pulses winding 24, can change secondary
The polarity of level pulse winding 24, so as to change the polarity of magnetic pole 21, can also finally change the flow direction of liquid metal 14.
PWM PDM keyers 23 can also control the impulse waveform duration of pulse transformer 22, so as to change
The flow velocity of liquid metal 14, the flow velocity of liquid metal 14 are extremely important to its radiating effect, in order to better control over liquid gold
The flow velocity of category 14, in the embodiment of the present invention, PWM PDM keyers 23 adopt linear high-performance current mode controller, linearly
Linear circuit in high-performance current mode controller, can effectively remove the spike in feedback signal, so as to improve system
Signal stabilization, it is to avoid issuable harmonic vibration when high duty ratio is exported of PWM PDM keyers 23 so that
The flow velocity fluctuation of liquid metal 14 is relatively more steady, is more beneficial for the heat that liquid metal 14 takes away DC converter valve body 11.
In addition, PWM PDM keyers 23 can also to control the pulse current waveform of pulse transformer 22, amplitude strong
Degree, dutycycle, and then realize the flexibly characteristic parameter such as the state of control liquid metal 14, efficiency so that liquid metal 14 pairs is straight
Stream converter valve valve body 11 plays more preferable thermolysis.
Those skilled in the art will readily occur to its of the present invention after considering specification and putting into practice disclosure of the invention here
Its embodiment.The application is intended to any modification of the present invention, purposes or adaptations, these modifications, purposes or
Person's adaptations follow the general principle of the present invention and including the undocumented common knowledge in the art of the present invention
Or conventional techniques.Description and embodiments are considered only as exemplary, and true scope and spirit of the invention are by following
Claim is pointed out.
It should be appreciated that the precision architecture for being described above and being shown in the drawings is the invention is not limited in, and
And various modifications and changes can be being carried out without departing from the scope.The scope of the present invention is limited only by appended claim.
Claims (5)
1. a kind of DC converter valve of tape pulse exciting bank, it is characterised in that include:Liquid metal heat-exchanging component (1), pulse
Drive assembly (2) and DC electric field switch (3), the liquid metal heat-exchanging component (1) and pulse excitation component (2) are by described
DC electric field switch (3) connection;
The liquid metal heat-exchanging component (1) includes DC converter valve body (11), thermal insulation layer (12), insulation leather hose (13)
With liquid metal (14), the thermal insulation layer (12) is wrapped in the periphery of the DC converter valve body (11), the insulation
The wall contacts of the inwall of heat-conducting layer (12) and the DC converter valve body (11), the insulation leather hose (13) are wrapped in described
The periphery of thermal insulation layer (11), and the liquid metal (14) is filled in insulation leather hose (13) and thermal insulation layer (12)
Between space;
The pulse excitation component (2) includes magnetic pole (21), pulse transformer (22), tap (25), PWM pulse width modulation controlleds
Device (23), secondary pulses winding (24) and iron core (26);DC electric field switch (3) is contacted with the liquid metal (14),
The pulse transformer (22) and tap (25) are wound on one end of the iron core (26), the secondary pulses winding (24) around
The other end in the iron core (26) is made, the tap (25) is switched (3) by wire and is connected with the DC electric field, described
Secondary pulses winding (24) is connected with the magnetic pole (21) by wire, the PWM PDM keyers (23) successively with institute
State the electrical connection of pulse transformer (22), tap (25) and secondary pulses winding (24).
2. the DC converter valve of tape pulse exciting bank according to claim 1, it is characterised in that the thermal insulation layer
(12) it is ceramic silica gel.
3. the DC converter valve of tape pulse exciting bank according to claim 1, it is characterised in that the iron core (26) is
High magnetic permeability iron core.
4. the DC converter valve of tape pulse exciting bank according to claim 1, it is characterised in that the PWM pulsewidths are adjusted
Controller (23) processed is linear high-performance current mode controller.
5. the DC converter valve of tape pulse exciting bank according to claim 1, it is characterised in that the liquid metal
(14) it is gallium-indium alloy liquid metal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201611024180.2A CN106533131B (en) | 2016-11-18 | 2016-11-18 | DC converter valve with pulse excitation device |
Applications Claiming Priority (1)
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CN201611024180.2A CN106533131B (en) | 2016-11-18 | 2016-11-18 | DC converter valve with pulse excitation device |
Publications (2)
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CN106533131A true CN106533131A (en) | 2017-03-22 |
CN106533131B CN106533131B (en) | 2023-07-14 |
Family
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CN201611024180.2A Active CN106533131B (en) | 2016-11-18 | 2016-11-18 | DC converter valve with pulse excitation device |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109104102A (en) * | 2018-08-16 | 2018-12-28 | 全球能源互联网研究院有限公司 | The solution of high pressure direct current valve heap liquid metal circulating cooling system electric field breakdown |
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CN106533131B (en) | 2023-07-14 |
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