CN110198036A - A kind of comprehensive harmonic elimination apparatus and its harmonic elimination method - Google Patents
A kind of comprehensive harmonic elimination apparatus and its harmonic elimination method Download PDFInfo
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- CN110198036A CN110198036A CN201910515681.8A CN201910515681A CN110198036A CN 110198036 A CN110198036 A CN 110198036A CN 201910515681 A CN201910515681 A CN 201910515681A CN 110198036 A CN110198036 A CN 110198036A
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- 230000008030 elimination Effects 0.000 title claims abstract description 127
- 238000003379 elimination reaction Methods 0.000 title claims abstract description 127
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000012544 monitoring process Methods 0.000 claims abstract description 11
- 239000000428 dust Substances 0.000 claims description 63
- 230000001629 suppression Effects 0.000 claims description 39
- 230000001681 protective effect Effects 0.000 claims description 38
- 238000009825 accumulation Methods 0.000 claims description 33
- 238000003825 pressing Methods 0.000 claims description 20
- 239000012528 membrane Substances 0.000 claims description 14
- 238000005192 partition Methods 0.000 claims description 12
- 230000005350 ferromagnetic resonance Effects 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 9
- 230000000977 initiatory effect Effects 0.000 claims description 9
- 238000001179 sorption measurement Methods 0.000 claims description 6
- 238000009423 ventilation Methods 0.000 claims description 6
- 239000002274 desiccant Substances 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 239000004973 liquid crystal related substance Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000011017 operating method Methods 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 abstract description 4
- 238000003786 synthesis reaction Methods 0.000 abstract description 4
- 230000000295 complement effect Effects 0.000 abstract description 3
- 238000004140 cleaning Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000005291 magnetic effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/24—Arrangements for preventing or reducing oscillations of power in networks
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention discloses an a kind of comprehensive harmonic elimination apparatus and its harmonic elimination methods, belong to harmonic elimination apparatus technical field.The synthesis harmonic elimination apparatus, it is made of resonance eliminator of the secondary resonance eliminator of microcomputer type and current mode, both resonance eliminator and secondary harmonic elimination dress device advantage are be combined with each other, have complementary advantages, when resonance occurs for system, quick harmonic elimination is carried out using resonance eliminator physical characteristic of current mode, resonance frequency amplitude etc. and resonance eliminator operating status of real-time monitoring are uploaded by secondary resonance eliminator, when resonance eliminator of current mode is operating abnormally, the secondary resonance eliminator of microcomputer type issues alarm signal and automatically engages harmonic elimination, it is ensured that voltage transformer itself is not involved in resonance.
Description
Technical field
The present invention relates to harmonic elimination apparatus technical field more particularly to a kind of comprehensive harmonic elimination apparatus and its harmonic elimination method.
Background technique
In the power system, due to the nonlinear inductance of voltage transformer and line mutual-ground capacitor matching and cause ferromagnetic
Resonance overvoltage directly threatens the safe operation of electric system, the explosion of voltage transformer can be caused when serious, is caused the accident.
Common solution is to install microcomputer resonance eliminator (referred to as secondary harmonic elimination) or PT neutral point string additional in voltage transformer open delta
One time resonance eliminator (a referred to as harmonic elimination) is diagnosed and is eliminated failure, long-term to be used alone, and will cause damage to voltage transformer
Evil, a resonance eliminator is based on pressure cell (voltage-type) resonance eliminator, and when PT is operated normally, pressure sensitive impedance is very big, influences
The measurement accuracy of PT, meanwhile, dust enters inside device in long-time use process, not only influences normal operating conditions simultaneously
Also it can cause short circuit or generate high temperataure phenomena, burn out device.
Summary of the invention
The purpose of the present invention is to provide a kind of comprehensive harmonic elimination apparatus and its harmonic elimination methods, also, solve harmonic elimination apparatus and exist
The problem of influencing working condition because of dust accumulation in use process.
To achieve the goals above, present invention employs following technical solutions:
A kind of comprehensive harmonic elimination apparatus, including Intelligent resonance suppression device and protective casing further include dust accumulation plate, press device and unlock dress
It sets；Frame is provided with ventilation grill at left and right sides of the protective casing, and the protective casing upper end Right Border is provided with
Through slot and press device, the press device are located at immediately below through slot, the protective casing inner upper end left side and electricity
Dynamic telescopic rod left end is fixedly connected, and the protective casing inner upper end is provided with dust accumulation plate, the dust accumulation plate left end and electricity
Dynamic telescopic rod right end is fixedly connected, and bottom surface is fixedly connected with connecting shaft upper end in the middle part of the dust accumulation plate, under the connecting shaft
End is fixedly connected with exhaust fan, and the protective casing inner upper end right side is fixedly installed with tripper, the protection
Housing central section is provided with Intelligent resonance suppression device, and the protective casing inner bottom surface is provided with desiccant filling slot, and described is anti-
Dust-proof roller is fixedly installed on the right side of shield enclosure interior.
Preferably, the Intelligent resonance suppression device is secondary to disappear by a harmonic elimination module and a secondary harmonic elimination module composition
Humorous module is mainly made of the part such as microprocessor module, button display panel, liquid crystal display, signal input and output and power supply；
One time harmonic elimination module is made of current mode resonance eliminator and built-in CT, and described four corners of Intelligent resonance suppression device are provided with tightly
Fixing bolt, the Intelligent resonance suppression device left and right sides are respectively arranged with display panel and control panel.By will be with this harmonic elimination
Module and secondary harmonic elimination module organically combine, so that device is more accurate, on intelligent solve the problems, such as more comprehensively.
Preferably, the dust accumulation plate includes grid framework, is provided with partition in the middle part of the grid framework, it is described every
Plate upper and lower surface is provided with mobile chute, and dustproof membrane frame is provided with above the partition, is provided with collection below the partition
Dirt net, the dustproof membrane frame and dust screen frame are slidably connected with mobile chute, on the right side of the dustproof membrane frame and dust screen frame
It is fixedly connected to baffle, side is provided with baltimore groove in the middle part of the baffle.It is convenient for by setting dust accumulation plate to internal dust
It is collected, guarantees the normal operation of component, extend and use duration.
Preferably, the press device includes adsorption cover, is provided with pressing board, the pressing board in the middle part of the adsorption cover
Medial surface is provided with compressed spring, is fixedly connected with connecting rod, the connecting rod right end position in the middle part of the pressing board medial surface
In the middle part of compressed spring, the connecting rod left end is flexibly connected with tripper.It can be light by setting press device
The pop-up of dust accumulation plate is carried out, manually convenient for cleaning.
Preferably, the tripper includes fixed frame, and the fixed frame inside left face is fixedly connected with
Fixed support rod, the fixation support rod other end are fixedly connected with firm frame left face, and the connecting rod left end is through solid
Determine framework and firm frame is deeply internal, the connecting rod left end is fixedly connected with the direct short side of cam block, and described is steady
Gu lower portion upper end is provided with the first elastic component, the firm lower portion middle-end is fixedly connected with quasi- core bar, described
Quasi- core bar right end is provided with sliding groove, and the firm lower portion lower end is provided with fixed transverse rod, first elastic component
Right end and the sliding contact of cam block bevel edge, the cam block right angle long side is fixedly connected with sliding vertical member upper end, described
Sliding vertical member lower end be fixedly connected inside quasi- core bar with spring contact upper end, the spring contact lower end is through fixation
It is fixedly connected in the middle part of cross bar with the second elastic component upper end, the firm frame inner bottom surface is provided with reset switch.Pass through setting
The flexible pop-up and storage of dust accumulation plate may be implemented in tripper, can not be cleaned, be had compared to more traditional dust guard
Effective solution method.
Preferably, the dust-proof roller includes rotation axis, and the rotation axis upper and lower ends are rotated with rotary electric machine
Connection, the rotary electric machine other end are fixedly connected with fixing axle, are fixedly connected inside the fixing axle and protective casing,
The retractable dustproof cloth frame surface is provided with dust hairbrush.Both dust can timely be inhaled by the way that dust-proof roller is arranged
It is attached, by the way that the cleaning effect to device may be implemented by rotary electric machine.
Preferably, the Intelligent resonance suppression device is by the secondary harmonic elimination module of microcomputer and to flow quick harmonic elimination block combiner of type
It forms, the secondary harmonic elimination module acquisition PT secondary side three-phase voltage of microcomputer and opening voltage, the work electricity of one more harmonic elimination module
Stream, under normal circumstances, first and second harmonic elimination element has no effect to system, in case of PT ferromagnetic resonance, a harmonic elimination mould
For block prior to microcomputer secondary harmonic elimination movement, playing is the effect that disappears, microcomputer secondary resonance elimination device detect be certain frequency iron
Magnetic resonance starts secondary harmonic elimination element, issues alarm, shows and related data is automatically stored.At the same time, the secondary harmonic elimination of microcomputer
Whether in the normal range the current value that a harmonic elimination apparatus is flowed through in device detection, judges whether a harmonic elimination is in normal shape
State.
Preferably, display panel read clock is beated by the second after Intelligent resonance suppression device energization is switched on is indicating device just
It is running, when showing starting-up interface, is pressing the OK key on control panel, into main menu, main menu shares action record, prison
Four menu items are arranged in measured data, time setting and station number, click corresponding option and enter menu item setting.
A kind of comprehensive harmonic elimination method, a kind of comprehensive harmonic elimination method belong to a kind of application of comprehensive harmonic elimination apparatus, operation side
Method are as follows:
Display panel read clock is beated by the second after S1, the energization booting of Intelligent resonance suppression device indicates that device is currently running, and is showing
When starting-up interface, the OK key on control panel is pressed, into main menu；
S2, main menu share action record, monitoring data, time setting and station number and four menu items are arranged, and click corresponding option
It is arranged into menu item；Flash storage can write down 20 failure loggings occurred recently inside Intelligent resonance suppression device, including
Fault type and time of origin；
S3, on interface of main menu,, then again can be by option keys into " failure logging " by the corresponding keys on control panel
Row page turning up and down, inquiry records one by one, and pressing OK key can return to main menu；On control panel interface inside Intelligent resonance suppression device,
The corresponding option keys by control panel, into monitoring data interface, can real-time display PT three-phase and open delta voltage have
The working current value of valid value and a harmonic elimination module；
S4, OK key return main menu is pressed, presses 1/+ key and enters the settable three frequency division of parameter tuning menu, two divided-frequency, power frequency, three times
Frequently a 1/+ is often pressed in each secondary resonance initiation value, He Yici harmonic elimination module operating current alarming value, first progress three frequency division setting
Key, initiation value add 1, often press a 2/- key, and initiation value subtracts 1, enter two divided-frequency setting by option keys after setting, similar is complete
It is arranged at items, finally presses OK key and save and return to main menu；The Intelligent resonance suppression device factory default station number is 01, if you need to
Change, on interface of main menu, presses the 2/- key on control panel, into set interface, often presses a 1/+ key, station number adds 1, often
A 2/- key is pressed, station number subtracts 1, presses OK key after setting completed and saves and return to main menu；
S5, Intelligent resonance suppression device start internal harmonic elimination element and carry out resonance elimination when resonance occurs for system, while being attracted " humorous
Vibration alarm " relay, and time and the type that resonance occurs are shown on a display panel, it presses OK key and returns to main menu, if you need to again
The secondary information for understanding current failure can enter " failure logging " and check that, when other failures occur for system, display panel can also be shown
Show that corresponding information, corresponding alarm relay can be also attracted.
Compared with prior art, the present invention provides a kind of comprehensive harmonic elimination apparatus and its harmonic elimination methods, have following beneficial
Effect:
(1) the synthesis harmonic elimination apparatus is made of resonance eliminator of the secondary resonance eliminator of microcomputer type and current mode, by resonance eliminator with
Both secondary harmonic elimination dress devices advantage be combined with each other, and has complementary advantages, when resonance occurs for system, utilizes harmonic elimination of current mode
Device physical characteristic carries out quick harmonic elimination, uploads resonance eliminator fortune of resonance frequency amplitude etc. and real-time monitoring by secondary resonance eliminator
Row state, when resonance eliminator of current mode is operating abnormally, the secondary resonance eliminator of microcomputer type, which issues alarm signal and automatically engages, to disappear
It is humorous, it is ensured that voltage transformer itself is not involved in resonance.
(2) the synthesis harmonic elimination apparatus, the secondary resonance eliminator of microcomputer type can upload, store the frequency amplitude of resonance overvoltage
Deng, moreover it is possible to frequency dividing, power frequency, frequency multiplication PT ferromagnetic resonance are eliminated, harmonic elimination of real-time monitoring fills device operating status.Current mode once disappears
Humorous device is formed by flowing quick type element, and it is quickly in high-impedance state when PT ferromagnetic resonance occurs that when normal operation, which is low resistive state, sharp
Condition of resonance is destroyed with its physical characteristic, to realize the purpose for quickly eliminating resonance overvoltage, resonance eliminator energy of current mode
Enough to realize continuous quick harmonic elimination, resonance overvoltage amplitude is bigger, and the harmonic elimination time is shorter, overcomes pressure sensitive (voltage-type) and once disappears
Humorous device cannot thoroughly eliminate the shortcomings that resonance overvoltage.
(3) the synthesis harmonic elimination apparatus, by dust accumulation plate pop-up cleared up when, firstly, pressing pressing board push connecting rod to
Internal motion pushes three sliding block right angle length to fix at this point, first elastic component one end is slided in the bevel edge of three sliding blocks
The sliding vertical member of connection moves downward, and the second elastic component is driven to press downwards during moving downward, is mounted on firm frame
The reset switch of inner bottom surface starts to start, and issues instruction electric telescopic rod and starts to carry out stretching exercise, pushes the pop-up of dust accumulation plate
The inside of protective casing cleans it by removing dustproof membrane frame and dust screen frame manually, then, is fixed and is placed on
The top and the bottom of grid framework push the second elastic member presses reset switch to start electric expansion by Manual press pressing board again
Bar is shunk, and drives dust accumulation plate to protective casing internal motion, compared to more traditional dedusting safeguard do not have it is good and
When cleaning function, a large amount of dusts of dust-proof arrangement for rear part accumulation itself, which are used for a long time, influences dissipation from electronic devices, this structure can be very
Easily dust collect plant is cleared up, guarantees the cleaning of itself so as to preferably carry out dust-proof operation.
It is not directed to part in the device to be the same as those in the prior art or can be realized by using the prior art, the present invention passes through
Harmonic elimination module and secondary harmonic elimination module are set, the two combination is solved after traditional harmonic elimination apparatus is used for a long time and is occurred
Precision and problem easy to damage, meanwhile, by installing dust prevention additional, guarantee that harmonic elimination apparatus still will not after long-term use
The problem of appearance overheats and component is damaged because of dust accumulation.
Detailed description of the invention
Fig. 1 is the overall structure diagram of a kind of comprehensive harmonic elimination apparatus and its harmonic elimination method proposed by the present invention；
Fig. 2 is the dust accumulation plate structural schematic diagram of a kind of comprehensive harmonic elimination apparatus and its harmonic elimination method proposed by the present invention；
Fig. 3 is the press device and tripper connection structure of a kind of comprehensive harmonic elimination apparatus and its harmonic elimination method proposed by the present invention
Schematic diagram；
Fig. 4 is the dust-proof roller frame schematic diagram of a kind of comprehensive harmonic elimination apparatus and its harmonic elimination method proposed by the present invention:
Fig. 5 is the working principle structural schematic diagram of a kind of comprehensive harmonic elimination apparatus and its harmonic elimination method proposed by the present invention.
In figure: 1, protective casing；2, electric telescopic rod；3, dust accumulation plate；4, connecting shaft；5, exhaust fan；6, through slot；7, it presses
Device；8, tripper；9, dust-proof roller；10, control panel；11, fastening bolt；12, desiccant filling slot；13, display surface
Plate；14, ventilation grill；15, grid framework；16, dustproof membrane frame；17, partition；18, baffle；19, baltimore groove；20, mobile chute；
21, dust screen frame；22, adsorption cover；23, pressing board；24, connecting rod；25, compressed spring；26, cam block；27, the first elasticity
Part；28, fixed frame；29, fixed support rod；30, frame is consolidated；31, sliding groove；32, fixed transverse rod；33, reset switch；34,
Second elastic component；35, spring contact；36, sliding vertical member；37, retractable dustproof cloth frame；38, fixing axle；39, rotary electric machine；40,
Dust hairbrush；41, rotation axis；42, Intelligent resonance suppression device；43, quasi- core bar.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "left", "right", "top",
The orientation or positional relationship of the instructions such as "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, merely to just
In description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with
Specific orientation construction and operation, therefore be not considered as limiting the invention.
Embodiment 1: referring to Fig.1-2, a kind of comprehensive harmonic elimination apparatus, including Intelligent resonance suppression device 42 and protective casing 1, also wrap
Include dust accumulation plate 3, press device 7 and tripper 8；1 left and right sides frame of protective casing is provided with ventilation grill 14, protective casing
1 upper end Right Border is provided with through slot 6 and press device 7, and press device 7 is located at immediately below through slot 6, on 1 inside of protective casing
End left side is fixedly connected with 2 left end of electric telescopic rod, and 1 inner upper end of protective casing is provided with dust accumulation plate 3,3 left end of dust accumulation plate
It is fixedly connected with 2 right end of electric telescopic rod, 3 middle part bottom surface of dust accumulation plate is fixedly connected with 4 upper end of connecting shaft, and 4 lower end of connecting shaft is solid
Surely it is connected with exhaust fan 5,1 inner upper end right side of protective casing is fixedly installed with tripper 8, is arranged in the middle part of protective casing 1
There is Intelligent resonance suppression device 42,1 inner bottom surface of protective casing is provided with desiccant filling slot 12, and 1 inner right side of protective casing is fixed
Dust-proof roller 9 is installed.
Dust accumulation plate 3 includes grid framework 15, is provided with partition 17 in the middle part of grid framework 15,17 upper and lower surface of partition is provided with
Mobile chute 20 is provided with dustproof membrane frame 16 above partition 17, dust screen frame 21,16 He of dustproof membrane frame is provided with below partition 17
Dust screen frame 21 is slidably connected with mobile chute 21, is fixedly connected to baffle 18 on the right side of dustproof membrane frame 16 and dust screen frame 21,
18 middle part side of baffle is provided with baltimore groove 19.
Intelligent resonance suppression device 42 is fixed in protective casing 1 by the present apparatus by fastening bolt 11 first using preceding
Portion sheds in the left and right side frame setting ventilation grill 14 of protective casing 1 to the heat for keeping interior arrangement operation to generate in time,
Dust accumulation plate 3 and exhaust fan 5 are installed in 1 inner upper end of protective casing, instruct exhaust fan 5 to operate by controller, can be incited somebody to action first
The dust that ventilation grill 14 adheres to is drawn on dust accumulation plate 3, and upper layer and lower layer structure, upper layer dustproof membrane are provided on dust accumulation plate 3
The dust that frame 16 is come in adsorb 1 top of protective casing also can carry out certain absorption, the dust of lower layer to internal dust
Screen frame 21 carries out accumulation to be attached by the dust that exhaust fan 5 is blown into, and then, opening tripper 8 by press device 7 will
Dust accumulation plate 3 pops up, and manually cleans out the dust on 21 surface of dustproof membrane frame 16 and dust screen frame, also with certain heat dissipation and
Effect is dried, while being that inner bottom surface is provided with drying of the desiccant filled layer 12 to keep internal components in protective casing 1,
Prevent dampness from influencing using effect.
Embodiment 2: referring to Fig. 3,1 basis, press device 7 include adsorption cover 22,22 middle part of adsorption cover in conjunction with the embodiments
It is provided with pressing board 23,23 medial surface of pressing board is provided with compressed spring 25, is fixedly connected with connecting rod 24 in the middle part of 23 medial surface of pressing board,
24 right end of connecting rod is located at 25 middle part of compressed spring, and 24 left end of connecting rod is flexibly connected with tripper 8.
Tripper 8 includes fixed frame 28, and 28 inside left face of fixed frame is fixedly connected with fixed support rod 29, fixed
29 other end of support rod is fixedly connected with firm 30 left side of frame, and fixed frame 28 and firm frame 30 are run through in 24 left end of connecting rod
Deeply internal, connecting rod left end is fixedly connected with the direct short side of cam block 26, and firm 30 inner upper end of frame is provided with first
Elastic component 27, firm 30 inside middle-end of frame are fixedly connected with quasi- core bar 43, and quasi- 43 right end of core bar is provided with sliding groove 31, consolidates
30 interior lower end of frame is provided with fixed transverse rod 32,27 right end of the first elastic component and 26 bevel edge sliding contact of cam block, triangle
26 right angle long side of sliding block is fixedly connected with 36 upper end of sliding vertical member, and 36 lower end of sliding vertical member is touched through quasi- 43 inside of core bar with elasticity
First 35 upper end is fixedly connected, and 35 lower end of spring contact is fixedly connected through 32 middle part of fixed transverse rod with 34 upper end of the second elastic component,
Firm 30 inner bottom surface of frame is provided with reset switch 33.
When the pop-up of dust accumulation plate 3 is cleared up, firstly, pressing pressing board 23 pushes connecting rod 24 internally to move, at this point,
First elastic component, 27 one end is slided in the bevel edge of three sliding blocks 26, the cunning for pushing three sliding blocks, 26 right angle length to be fixedly connected
Dynamic vertical bar 36 moves downward, and drives the second elastic component 34 pressure downwards during moving downward, is mounted in firm frame 30
The reset switch 33 of portion bottom surface starts to start, and issues instruction electric telescopic rod 2 and starts to carry out stretching exercise, pushes 3 bullet of dust accumulation plate
It is cleaned by removing dustproof membrane frame 16 and dust screen frame 21 manually in the inside of protective casing 1 out, then, consolidate
Surely the top and the bottom of grid framework 15 are placed on, push 34 pressed home of the second elastic component to open by Manual press pressing board 23 again
It closes 33 starting electric telescopic rods 2 to be shunk, drives dust accumulation plate 3 to 1 internal motion of protective casing.
Real-time example 3: referring to Fig. 4,2 basis, dust-proof roller 9 include rotation axis 41, about 41 rotation axis in conjunction with the embodiments
Both ends are rotatablely connected with rotary electric machine 39, and 39 other end of rotary electric machine is fixedly connected with fixing axle 38, fixing axle 38 and protection
It is fixedly connected inside shell 1,37 surface of retractable dustproof cloth frame is provided with dust hairbrush 40.
Dust-proof roller 9 is set in the inner right side of protective casing 1 and carries out dust suction and deashing processing to the device to inside,
Wherein, it is stretched out, is blocked in the front of Intelligent resonance suppression device 42, in entrance by the dust-proof cloth frame 37 of 39 electric expansion of rotary electric machine
The dust in portion carries out blocking absorption, and the dust hairbrush 40 for being mounted on its surface can carry out 42 surface of Intelligent resonance suppression device
Cleaning reduces dust and enters device internal damage component.
Real-time example 4: referring to Fig. 5,1 basis in conjunction with the embodiments, Intelligent resonance suppression device 42 is by a harmonic elimination module and secondary
Harmonic elimination module composition, secondary harmonic elimination module are mainly defeated by microprocessor module, button display panel, liquid crystal display, signal
Enter the part such as output and power supply to constitute；One time harmonic elimination module is made of current mode resonance eliminator and built-in CT, Intelligent resonance suppression device 42
Four corners are provided with fastening bolt 11, and display panel 13 and control are respectively arranged at left and right sides of Intelligent resonance suppression device 42
Panel 10.
Intelligent resonance suppression device 42 is formed by the secondary harmonic elimination module of microcomputer and the quick harmonic elimination block combiner of type of stream, microcomputer two
Secondary harmonic elimination module acquisition PT secondary side three-phase voltage and opening voltage, the operating current of one more harmonic elimination module, in positive reason
Under condition, first and second harmonic elimination element has no effect to system, and in case of PT ferromagnetic resonance, a harmonic elimination module is prior to microcomputer
The movement of secondary harmonic elimination plays and comes to be the effect that disappears, microcomputer secondary resonance elimination device detect be certain frequency ferromagnetic resonance, start
Secondary harmonic elimination element issues alarm, shows and related data is automatically stored.At the same time, microcomputer secondary resonance elimination device detection stream
Whether in the normal range the current value for crossing a harmonic elimination apparatus, judges whether a harmonic elimination is in normal condition.
Embodiment 6
A kind of comprehensive harmonic elimination method belongs to a kind of application of comprehensive harmonic elimination apparatus, operating method are as follows:
13 read clock of display panel is beated by the second after S1, the energization booting of Intelligent resonance suppression device 42 indicates that device is currently running,
When showing starting-up interface, the OK key on control panel 10 is pressed, into main menu；
S2, main menu share action record, monitoring data, time setting and station number and four menu items are arranged, and click corresponding option
It is arranged into menu item；42 inside flash storage of Intelligent resonance suppression device can write down 20 failure loggings occurred recently, packet
Include fault type and time of origin；
S3, on interface of main menu, by the corresponding keys on control panel 10, into " failure logging ", then again by option keys can
Page turning up and down is carried out, one by one inquiry record, pressing OK key can return to main menu；10 boundary of control panel inside Intelligent resonance suppression device 42
On face, the corresponding option keys by control panel 10 can real-time display PT three-phase and open delta electricity into monitoring data interface
The working current value of the virtual value of pressure and a harmonic elimination module；
S4, OK key return main menu is pressed, presses 1/+ key and enters the settable three frequency division of parameter tuning menu, two divided-frequency, power frequency, three times
Frequently a 1/+ is often pressed in each secondary resonance initiation value, He Yici harmonic elimination module operating current alarming value, first progress three frequency division setting
Key, initiation value add 1, often press a 2/- key, and initiation value subtracts 1, enter two divided-frequency setting by option keys after setting, similar is complete
It is arranged at items, finally presses OK key and save and return to main menu；The 42 factory default station number of Intelligent resonance suppression device is 01, such as
It needs to change, on interface of main menu, presses the 2/- key on control panel 10, into set interface, often press a 1/+ key, station number adds
1, a 2/- key is often pressed, station number subtracts 1, presses OK key after setting completed and saves and return to main menu；
S5, Intelligent resonance suppression device 42 start internal harmonic elimination element and carry out resonance elimination, be attracted simultaneously when resonance occurs for system
" resonance alarm " relay, and time and the type that resonance occurs are shown on display panel 13, it presses OK key and returns to main menu, such as
The information of current failure need to be understood again, can be entered " failure logging " and be checked, when other failures occur for system, display panel 13
Also it can show that corresponding information, corresponding alarm relay can be also attracted.
Intelligent resonance suppression device 42 is made of resonance eliminator of the secondary resonance eliminator of microcomputer type and current mode, by a resonance eliminator
It is combined with each other, has complementary advantages with both secondary harmonic elimination dress device advantages, when resonance occurs for system, once disappeared using current mode
Humorous device physical characteristic carries out quick harmonic elimination, uploads resonance frequency amplitude etc. and resonance eliminator of real-time monitoring by secondary resonance eliminator
Operating status, when resonance eliminator of current mode is operating abnormally, the secondary resonance eliminator of microcomputer type issues alarm signal and automatically engages
Harmonic elimination, it is ensured that voltage transformer itself is not involved in resonance, and the secondary resonance eliminator of microcomputer type can upload, store the frequency of resonance overvoltage
Rate amplitude etc., moreover it is possible to eliminate frequency dividing, power frequency, frequency multiplication PT ferromagnetic resonance, harmonic elimination of real-time monitoring fills device operating status.Current mode
Resonance eliminator is formed by flowing quick type element, and it is quickly in high resistant when PT ferromagnetic resonance occurs that when normal operation, which is low resistive state,
State destroys condition of resonance using its physical characteristic, to realize the purpose for quickly eliminating resonance overvoltage, current mode once disappears
Humorous device can be realized continuous quick harmonic elimination, and resonance overvoltage amplitude is bigger, and the harmonic elimination time is shorter, overcomes pressure sensitive (voltage-type)
The shortcomings that one time resonance eliminator cannot thoroughly eliminate resonance overvoltage.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent replacement or change, should be covered by the protection scope of the present invention.
Claims (8)
1. a kind of comprehensive harmonic elimination apparatus, including Intelligent resonance suppression device (42) and protective casing (1), it is characterised in that: further include product
Dirt plate (3), press device (7) and tripper (8)；Frame is provided with ventilation grill at left and right sides of the protective casing (1)
(14), the protective casing (1) upper end Right Border is provided with through slot (6) and press device (7), the press device
(7) it is located at immediately below through slot (6), the fixed company in the protective casing (1) inner upper end left side and electric telescopic rod (2) left end
It connects, the protective casing (1) inner upper end is provided with dust accumulation plate (3), dust accumulation plate (3) left end and electric telescopic rod
(2) right end is fixedly connected, and bottom surface is fixedly connected with connecting shaft (4) upper end in the middle part of the dust accumulation plate (3), the connecting shaft
(4) lower end is fixedly connected with exhaust fan (5), and the protective casing (1) inner upper end right side is fixedly installed with tripper
(8), it is provided with Intelligent resonance suppression device (42) in the middle part of the protective casing (1), the setting of the protective casing (1) inner bottom surface
Have desiccant filling slot (12), the protective casing (1) inner right side is fixedly installed with dust-proof roller (9).
2. a kind of comprehensive harmonic elimination apparatus according to claim 1, it is characterised in that: the Intelligent resonance suppression device (42) by
Harmonic elimination module and a secondary harmonic elimination module composition, secondary harmonic elimination module mainly by microprocessor module, button display panel,
The part such as liquid crystal display, signal input and output and power supply is constituted；Harmonic elimination module is by current mode resonance eliminator and built-in CT group
At described (42) four corners of Intelligent resonance suppression device are provided with fastening bolt (11), the Intelligent resonance suppression device
(42) left and right sides is respectively arranged with display panel (13) and control panel (10).
3. a kind of comprehensive harmonic elimination apparatus according to claim 1, it is characterised in that: the dust accumulation plate (3) includes grid
Frame (15), the grid framework (15) middle part are provided with partition (17), and the partition (17) upper and lower surface is provided with shifting
Dynamic sliding slot (20), the partition (17) top are provided with dustproof membrane frame (16), are provided with dust below the partition (17)
Screen frame (21), the dustproof membrane frame (16) and dust screen frame (21) are slidably connected with mobile chute (21), the dustproof membrane
It is fixedly connected to baffle (18) on the right side of frame (16) and dust screen frame (21), side is provided with spill in the middle part of the baffle (18)
Slot (19).
4. a kind of comprehensive harmonic elimination apparatus according to claim 1, it is characterised in that: the press device (7) includes inhaling
Attached lid (22), the adsorption cover (22) middle part are provided with pressing board (23), and the pressing board (23) medial surface is provided with compression bullet
Spring (25), the pressing board (23) medial surface middle part are fixedly connected with connecting rod (24), and the connecting rod (24) right end is located at
In the middle part of compressed spring (25), the connecting rod (24) left end is flexibly connected with tripper (8).
5. a kind of comprehensive harmonic elimination apparatus according to claim 4, it is characterised in that: the tripper (8) includes solid
Determine framework (28), the fixed frame (28) inside left face is fixedly connected with fixed support rod (29), the fixation support rod
(29) other end is fixedly connected with firm frame (30) left side, the connecting rod (24) left end through fixed frame (28) and
Firm frame (30) are deeply internal, and the connecting rod left end is fixedly connected with cam block (26) right angle short side, and described is steady
Gu frame (30) inner upper end is provided with the first elastic component (27), the internal middle-end of the firm frame (30) is fixedly connected with standard
Core bar (43), described quasi- core bar (43) right end are provided with sliding groove (31), firm frame (30) the interior lower end setting
Have fixed transverse rod (32), the first elastic component (27) right end and cam block (26) bevel edge sliding contact, the triangle
Sliding block (26) right angle long side is fixedly connected with sliding vertical member (36) upper end, and quasi- core bar is run through in the sliding vertical member (36) lower end
(43) internal to be fixedly connected with spring contact (35) upper end, the spring contact (35) lower end is in the middle part of fixed transverse rod (32)
It is fixedly connected with the second elastic component (34) upper end, described firm frame (30) inner bottom surface is provided with reset switch (33).
6. a kind of comprehensive harmonic elimination apparatus according to claim 1, it is characterised in that: the dust-proof roller (9) includes turning
Moving axis (41), the rotation axis (41) upper and lower ends are rotatablely connected with rotary electric machine (39), the rotary electric machine (39)
The other end is fixedly connected with fixing axle (38), is fixedly connected inside the fixing axle (38) and protective casing (1), described stretches
The dust-proof cloth frame that contracts (37) surface is provided with dust hairbrush (40).
7. a kind of comprehensive harmonic elimination apparatus according to claim 2, it is characterised in that: the Intelligent resonance suppression device (42) is
It is formed by the secondary harmonic elimination module of microcomputer and the quick harmonic elimination block combiner of type of stream, the secondary harmonic elimination module of microcomputer acquires PT secondary side three
Phase voltage and opening voltage, the operating current of one more harmonic elimination module, under normal circumstances, first and second harmonic elimination element is to being
System has no effect, and in case of PT ferromagnetic resonance, a harmonic elimination module is acted prior to the secondary harmonic elimination of microcomputer, plays i.e. to be to disappear
Effect, microcomputer secondary resonance elimination device detect be certain frequency ferromagnetic resonance, start secondary harmonic elimination element, issue alarm, aobvious
Show and related data is automatically stored；
At the same time, in the normal range whether the current value that a harmonic elimination apparatus is flowed through in the detection of microcomputer secondary resonance elimination device, sentenced
Whether a disconnected harmonic elimination is in normal condition.
8. a kind of comprehensive harmonic elimination method belongs to a kind of application of comprehensive harmonic elimination apparatus, it is characterised in that: its operating method are as follows:
Display panel (13) read clock is beated by the second after S1, Intelligent resonance suppression device (42) energization booting indicates that device is being transported
Row, when showing starting-up interface, presses the OK key on control panel (10), into main menu；
S2, main menu share action record, monitoring data, time setting and station number and four menu items are arranged, and click corresponding option
It is arranged into menu item；The internal flash storage of Intelligent resonance suppression device (42) can write down 20 failure loggings occurred recently,
Including fault type and time of origin；
S3, on interface of main menu, by the corresponding keys on control panel (10), into " failure logging ", then again press option keys
Page turning up and down can be carried out, one by one inquiry record, pressing OK key can return to main menu；The internal control panel of Intelligent resonance suppression device (42)
(10) on interface, the corresponding option keys by control panel (10) real-time display PT three-phase and can be opened into monitoring data interface
The mouth virtual value of triangular voltages and the working current value of a harmonic elimination module；
S4, OK key return main menu is pressed, presses 1/+ key and enters the settable three frequency division of parameter tuning menu, two divided-frequency, power frequency, three times
Frequently a 1/+ is often pressed in each secondary resonance initiation value, He Yici harmonic elimination module operating current alarming value, first progress three frequency division setting
Key, initiation value add 1, often press a 2/- key, and initiation value subtracts 1, enter two divided-frequency setting by option keys after setting, similar is complete
It is arranged at items, finally presses OK key and save and return to main menu；Intelligent resonance suppression device (42) the factory default station number is 01,
If you need to change, on interface of main menu, the 2/- key on control panel (10) is pressed, into set interface, a 1/+ key is often pressed, stands
Number plus 1, often press a 2/- key, station number subtracts 1, presses OK key after setting completed and saves and return to main menu；
S5, Intelligent resonance suppression device (42) start internal harmonic elimination element and carry out resonance elimination, be attracted simultaneously when resonance occurs for system
" resonance alarm " relay, and time and the type that resonance occurs are shown on display panel (13), it presses OK key and returns to main menu,
If you need to understand the information of current failure again, " failure logging " can be entered and checked, when other failures occur for system, display panel
(13) it can also show that corresponding information, corresponding alarm relay can be also attracted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910515681.8A CN110198036A (en) | 2019-06-14 | 2019-06-14 | A kind of comprehensive harmonic elimination apparatus and its harmonic elimination method |
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| CN201910515681.8A CN110198036A (en) | 2019-06-14 | 2019-06-14 | A kind of comprehensive harmonic elimination apparatus and its harmonic elimination method |
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Cited By (1)
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| CN116113208A (en) * | 2022-12-30 | 2023-05-12 | 安徽正广电电力技术有限公司 | Integrated novel active arc extinction and resonance elimination intervention system and intervention device |
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