CN205081471U - Passive harmonic elimination cabinet of decentralized switching - Google Patents
Passive harmonic elimination cabinet of decentralized switching Download PDFInfo
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- CN205081471U CN205081471U CN201520740058.XU CN201520740058U CN205081471U CN 205081471 U CN205081471 U CN 205081471U CN 201520740058 U CN201520740058 U CN 201520740058U CN 205081471 U CN205081471 U CN 205081471U
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- harmonic elimination
- harmonic
- cabinet
- capacitance compensation
- elimination capacitance
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- 230000008030 elimination Effects 0.000 title claims abstract description 79
- 238000003379 elimination reaction Methods 0.000 title claims abstract description 79
- 230000008859 change Effects 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 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
- 230000003111 delayed effect Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
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- 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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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- 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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
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Abstract
The utility model discloses a passive harmonic elimination cabinet of decentralized switching, include: harmonic elimination capacitance compensation initiative cabinet and two harmonic elimination capacitance compensation linkage cabinet, two harmonic elimination capacitance compensation linkage cabinet and the linkage of harmonic elimination capacitance compensation initiative cabinet, an intelligent automatic compensation harmonic elimination controller, intelligence automatic compensation harmonic elimination controller is installed the initiative of quintic harmonic elimination capacitance compensation cashier's office in a shop, intelligence automatic compensation harmonic elimination controller comprises master element, detecting element and man -machine interface, detecting element with man -machine interface all with the master element is connected, detecting element installs between electric wire netting and load. In this way, the utility model relates to a passive harmonic elimination cabinet of decentralized switching installs intelligent automatic compensation harmonic elimination controller in this passive harmonic elimination cabinet, the utilization ratio of electric capacity and reactance improves, and power factor and harmonic elimination obtain best effect, and the design also obtains simplifying.
Description
Technical field
The utility model belongs to passive harmonic elimination field, is specifically related to a kind of passive harmonic-eliminating cabinets of decentralized switching.
Background technology
Passive harmonic elimination is on the basis of capacitance compensation, and the reactance of coupling of having connected, makes it while compensation power factor, allow specific harmonic wave also filter out thereupon.
Traditional design is owing to considering the time delay that former power-factor compensator drops into, may when less input way, harmonic wave is concentrated and is poured in Xian Touji road, and Shi Zheji road electric capacity can't bear the heavy load and explode, thus traditional power factor compensator scheme has been given up, change and concentrate switching by vacuum contactor, vacuum contactor concentrates the capacity reactance assembly of switching inevitably to produce electric capacity overcompensation, thus generation overvoltage, overcompensation is exactly accessed too much electric capacity, system becomes capacitive load from original inductive load, power factor is lowly become in advance lowly from delayed, power supply administration's regulation power factor will be imposed a fine lower than 0.9, originally wanted to improve power factor, produce overcompensation owing to laying particular stress on the fail safe of consideration harmonic elimination now, on the contrary may be also lower than original, during vacuum contactor switching, high voltage superposition possible on the peak value of power supply and electric capacity makes vacuum contactor contact melted burn, every road vacuum contactor can only allow a kind of harmonic resonance, also a kind of harmonic wave is namely allowed to pass through very smoothly, and the harmonic wave that circuit produces can not be a kind of, so the harmonic elimination circuit of each harmonic also just can not mate very well.
Utility model content
The technical problem that the utility model mainly solves is to provide a kind of passive harmonic-eliminating cabinets of decentralized switching.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of passive harmonic-eliminating cabinets of decentralized switching, comprising:
One harmonic elimination capacitance compensation is cabinet and two harmonic elimination capacitance compensation linkage cabinet initiatively, harmonic elimination capacitance compensation linkage cabinet described in two and a harmonic elimination capacitance compensation initiatively cabinet link, described harmonic elimination capacitance compensation active cabinet and described harmonic elimination capacitance compensation linkage cabinet are by change over switch, switch with knifeshaped fuse, detecting unit, lightning arrester and some roads switching circuit composition, described switching circuit comprises fuse, switching executive component, electric capacity and reactance component, described fuse, described switching executive component, connect between described electric capacity and described reactance component, described harmonic elimination capacitance compensation initiatively cabinet is five harmonic elimination capacitance compensations initiatively cabinets, harmonic elimination capacitance compensation linkage cabinet described in two comprises one or three harmonic elimination capacitance compensation linkage cabinet and one or seven harmonic elimination capacitance compensation linkage cabinet, described five harmonic elimination capacitance compensations are initiatively also provided with voltmeter and power-factor indicator cashier's office in a shop,
One intelligent auto-compensation harmonic-eliminating controller, described intelligent auto-compensation harmonic-eliminating controller is arranged on described five harmonic elimination capacitance compensations initiatively cashier's office in a shop, described intelligent auto-compensation harmonic-eliminating controller is made up of master element, detecting unit and man-machine interface, described detecting unit is all connected with described master element with described man-machine interface, and described detecting unit is arranged between electrical network and load.
In the utility model preferred embodiment, described detecting unit is current transformer.
In the utility model preferred embodiment, described switching executive component is combination switch.
In the utility model preferred embodiment, in described three harmonic elimination capacitance compensation linkage cabinet, the way of described switching circuit is 14 tunnels.
In the utility model preferred embodiment, described five harmonic elimination capacitance compensations initiatively in cabinet and described seven harmonic elimination capacitance compensation linkage cabinet the way of described switching circuit be 16 tunnels.
The beneficial effects of the utility model are: the passive harmonic-eliminating cabinets of a kind of decentralized of the utility model switching, in this passive harmonic-eliminating cabinets, intelligent auto-compensation harmonic-eliminating controller is installed, solve the capacity reactance assembly that just synchronously simultaneously can drop into corresponding way when dropping at first according to the maximum of reactive current or harmonic current, and the way of the corresponding input of precise hard_drawn tuhes can be carried out like that with the reactive current value detected to the auto power-factor compensating harmonic-eliminating controller adopted, the utilance of electric capacity and reactance improves, power factor and harmonic elimination obtain best effect, design is also simplified.
Accompanying drawing explanation
Fig. 1 is a kind of theory diagram of intelligent auto-compensation harmonic-eliminating controller of passive harmonic-eliminating cabinets of decentralized switching.
Fig. 2 is the schematic diagram of the decentralized switching of three harmonic elimination capacitance compensation linkage cabinet in a kind of passive harmonic-eliminating cabinets of decentralized switching.
Fig. 3 is the schematic diagram of the decentralized switching of five harmonic elimination capacitance compensation active cabinets in a kind of passive harmonic-eliminating cabinets of decentralized switching.
Fig. 4 is the schematic diagram of the decentralized switching of seven harmonic elimination capacitance compensation linkage cabinet in a kind of passive harmonic-eliminating cabinets of decentralized switching.
In accompanying drawing, the mark of each parts is as follows: 1, change over switch; 2, switch with knifeshaped fuse; 3, detecting unit; 4, lightning arrester; 5, fuse; 6, switching executive component; 7, electric capacity; 8, reactance component; 9, master element; 10, man-machine interface; 11, voltmeter; 12, power-factor indicator; 13, intelligent auto-compensation harmonic-eliminating controller.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, to make advantage of the present utility model and feature can be easier to be readily appreciated by one skilled in the art, thus more explicit defining is made to protection range of the present utility model.
Refer to Fig. 1 to Fig. 4, the utility model embodiment comprises: a kind of passive harmonic-eliminating cabinets of decentralized switching, comprising:
One harmonic elimination capacitance compensation is cabinet and two harmonic elimination capacitance compensation linkage cabinet initiatively, harmonic elimination capacitance compensation linkage cabinet described in two and a harmonic elimination capacitance compensation initiatively cabinet link, described harmonic elimination capacitance compensation linkage cabinet is made up of change over switch 1, switch with knifeshaped fuse 2, detecting unit 3, lightning arrester 4 and some roads switching circuit, described change over switch 1 for harmonic elimination capacitance compensation initiatively cabinet and between harmonic elimination capacitance compensation linkage cabinet and described intelligent auto-compensation harmonic-eliminating controller 13 manually and switch automatically.
Described in change over switch 1, detecting unit 3 is current transformer, and current transformer detects reactive current and harmonic current from load major loop according to clock interval, calculates for described intelligent auto-compensation harmonic-eliminating controller 13, judge, issues an order.
Described switching circuit comprises fuse 5, switching executive component 6, electric capacity 7 and reactance component 8; described fuse 5, described switching executive component 6, series connection between described electric capacity 7 and described reactance component 8; described switching executive component 6 is combination switch; described combination switch is the zero passage folding automatically of power semiconductor component energy; mechanical contact in parallel with it after closing automatically closes and to be protected by power semiconductor component short circuit, and the superposition of voltage when can avoid using contactor when folding in power supply peak value and electric capacity produces heavy current thus burns contactor.
Described harmonic elimination capacitance compensation initiatively cabinet is five harmonic elimination capacitance compensations initiatively cabinets, harmonic elimination capacitance compensation linkage cabinet described in two comprises one or three harmonic elimination capacitance compensation linkage cabinet and one or seven harmonic elimination capacitance compensation linkage cabinet, and described five harmonic elimination capacitance compensations are initiatively also provided with voltmeter 11, power-factor indicator 12 and intelligent auto-compensation harmonic-eliminating controller 13 cashier's office in a shop.
In the present embodiment, in described three harmonic elimination capacitance compensation linkage cabinet, the way of described switching circuit is 14 tunnels, described five harmonic elimination capacitance compensations initiatively in cabinet and described seven harmonic elimination capacitance compensation linkage cabinet the way of described switching circuit be 16 tunnels, described reactance component 8 model that switching circuit described in every road adopts is ASMJ0.525-26/3, the model of described switching executive component 6 is REK-63A-3/ △, the model of described fuse 5 is RT36-00-3, and the configuration of these ways is distribution design according to the total reactive power of certain circuit and harmonic component.
Described electric capacity 7 in wherein said three harmonic elimination capacitance compensation linkage cabinet comprises the electric capacity of 8 LKSG-3.12/0.525-12% and the electric capacity of 6 LKSG-1.17/0.525-4.5%, described electric capacity 7 in described five harmonic elimination capacitance compensations active cabinet is the electric capacity of 16 LKSG-1.17/0.525-4.5%, and the described electric capacity 7 in described seven harmonic elimination capacitance compensation linkage cabinet comprises the electric capacity of 12 LKSG-0.65/0.525-2.5% and the electric capacity of 4 LKSG-1.17/0.525-4.5%.
One intelligent auto-compensation harmonic-eliminating controller 13, described intelligent auto-compensation harmonic-eliminating controller 13 is arranged on described five harmonic elimination capacitance compensations initiatively cashier's office in a shop, main task filters 5 subharmonic, 5 subharmonic are the harmonic waves producing at most in circuit, if above linked 2-in-1 for the described switch with knifeshaped fuse in described three harmonic elimination capacitance compensation linkage cabinet and described seven harmonic elimination capacitance compensation linkage cabinet with described five harmonic elimination capacitance compensations active cabinet, namely each road is connected with described five harmonic elimination capacitance compensations lines in parallel that initiatively cabinet is corresponding, so every Tou Shang mono-tunnel, just can allow 3 times simultaneously, 5 times, 7 subharmonic passages are opened, therefore described electric capacity 7 but can not drop into a lot.
Described intelligent auto-compensation harmonic-eliminating controller 13 is the upgradings on original power foutor automated compensator basis, again harmonic measurement function is added according to new requirement, making software, described detecting unit 3 detects reactive current and harmonic current from load major loop according to clock interval, in feeding in described master element 9, described master element 9 increases the calculating to harmonic wave maximum and electric capacity input amount, then order to drop into the way of corresponding described switching circuit, in operation, the harmonic current of circuit and reactive current are constantly detected, the maximum value calculation of getting in them needs the quantity dropping into described electric capacity 7, control the corresponding way of described switching executive component 6 action switching.
Described intelligent auto-compensation harmonic-eliminating controller 13 is made up of master element 9, detecting unit 3 and man-machine interface 10, described detecting unit 3 is all connected with described master element 9 with described man-machine interface 10, described detecting unit 3 is arranged between electrical network and load, and described man-machine interface 10 is for setting the task of the parameter of various needs.
Compared with prior art, the passive harmonic-eliminating cabinets of a kind of decentralized of the utility model switching, in this passive harmonic-eliminating cabinets, intelligent auto-compensation harmonic-eliminating controller is installed, solve the capacity reactance assembly that just synchronously simultaneously can drop into corresponding way when dropping at first according to the maximum of reactive current or harmonic current, and the way of the corresponding input of precise hard_drawn tuhes can be carried out like that with the reactive current value detected to the auto power-factor compensating harmonic-eliminating controller adopted, the utilance of electric capacity and reactance improves, power factor and harmonic elimination obtain best effect, design is also simplified.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model specification and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (5)
1. a passive harmonic-eliminating cabinets for decentralized switching, is characterized in that, comprising:
One harmonic elimination capacitance compensation is cabinet and two harmonic elimination capacitance compensation linkage cabinet initiatively, harmonic elimination capacitance compensation linkage cabinet described in two and a harmonic elimination capacitance compensation initiatively cabinet link, described harmonic elimination capacitance compensation active cabinet and described harmonic elimination capacitance compensation linkage cabinet are by change over switch, switch with knifeshaped fuse, detecting unit, lightning arrester and some roads switching circuit composition, described switching circuit comprises fuse, switching executive component, electric capacity and reactance component, described fuse, described switching executive component, connect between described electric capacity and described reactance component, described harmonic elimination capacitance compensation initiatively cabinet is five harmonic elimination capacitance compensations initiatively cabinets, harmonic elimination capacitance compensation linkage cabinet described in two comprises one or three harmonic elimination capacitance compensation linkage cabinet and one or seven harmonic elimination capacitance compensation linkage cabinet, described five harmonic elimination capacitance compensations are initiatively also provided with voltmeter and power-factor indicator cashier's office in a shop,
One intelligent auto-compensation harmonic-eliminating controller, described intelligent auto-compensation harmonic-eliminating controller is arranged on described five harmonic elimination capacitance compensations initiatively cashier's office in a shop, described intelligent auto-compensation harmonic-eliminating controller is made up of master element, detecting unit and man-machine interface, described detecting unit is all connected with described master element with described man-machine interface, and described detecting unit is arranged between electrical network and load.
2. the passive harmonic-eliminating cabinets of a kind of decentralized switching according to claim 1, is characterized in that: described detecting unit is current transformer.
3. the passive harmonic-eliminating cabinets of a kind of decentralized switching according to claim 1, is characterized in that: described switching executive component is combination switch.
4. the passive harmonic-eliminating cabinets of a kind of decentralized switching according to claim 1, is characterized in that: in described three harmonic elimination capacitance compensation linkage cabinet, the way of described switching circuit is 14 tunnels.
5. the passive harmonic-eliminating cabinets of a kind of decentralized switching according to claim 1, is characterized in that: described five harmonic elimination capacitance compensations initiatively in cabinet and described seven harmonic elimination capacitance compensation linkage cabinet the way of described switching circuit be 16 tunnels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520740058.XU CN205081471U (en) | 2015-09-23 | 2015-09-23 | Passive harmonic elimination cabinet of decentralized switching |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520740058.XU CN205081471U (en) | 2015-09-23 | 2015-09-23 | Passive harmonic elimination cabinet of decentralized switching |
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| CN205081471U true CN205081471U (en) | 2016-03-09 |
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| CN201520740058.XU Expired - Fee Related CN205081471U (en) | 2015-09-23 | 2015-09-23 | Passive harmonic elimination cabinet of decentralized switching |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186520A (en) * | 2015-09-23 | 2015-12-23 | 常熟市宏宇水电设备工程有限责任公司 | Distributed switching passive harmonic elimination cabinet |
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2015
- 2015-09-23 CN CN201520740058.XU patent/CN205081471U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186520A (en) * | 2015-09-23 | 2015-12-23 | 常熟市宏宇水电设备工程有限责任公司 | Distributed switching passive harmonic elimination cabinet |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215500 Jiangsu city of Suzhou province Changshou City Yushan High-tech Industrial Park No. 5 Taizhou Road Patentee after: CHANGSHU HONGYU POWER ENGINEERING CO.,LTD. Address before: 215500 Jiangsu city of Suzhou province Changshou City Yushan High-tech Industrial Park No. 5 Taizhou Road Patentee before: CHANGSHU HONGYU HYDROELECTRIC EQUIPMENT ENGINEERING Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160309 |
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| CF01 | Termination of patent right due to non-payment of annual fee |