CN103269080B - Intelligent high-pressure is idle automatic capacity transfer compensation arrangement - Google Patents
Intelligent high-pressure is idle automatic capacity transfer compensation arrangement Download PDFInfo
- Publication number
- CN103269080B CN103269080B CN201310230900.0A CN201310230900A CN103269080B CN 103269080 B CN103269080 B CN 103269080B CN 201310230900 A CN201310230900 A CN 201310230900A CN 103269080 B CN103269080 B CN 103269080B
- Authority
- CN
- China
- Prior art keywords
- capacity
- capacitor
- switch
- group
- automation device
- 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.)
- Expired - Fee Related
Links
- 239000003990 capacitor Substances 0.000 claims abstract description 76
- 230000004224 protection Effects 0.000 claims description 7
- 230000007704 transition Effects 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000819 phase cycle Methods 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Control Of Electrical Variables (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The present invention relates to the idle automatic capacity transfer compensation arrangement of a kind of intelligent high-pressure, comprise comprehensive automation device, Capacity Selection on-off controller, Capacity Selection switch, fling-cut switch, described comprehensive automation device, for measuring the load or burden without work of main transformer and capacitor group, calculate System Reactive Power load, whether the load or burden without work providing according to capacitance group is again analyzed the current running status of reactive power compensator reasonable, determine whether reactive compensation capacity is switched to another kind of capacity, in the time that needs capacitor is switched to another kind of capacity, send sub-gate signal to fling-cut switch, when comprehensive automation device detects capacitor group no current, send signal to Capacity Selection on-off controller, Capacity Selection on-off controller starting capacity selector switch is adjusted gear, adjust after gear, comprehensive automation device sends switching signal to fling-cut switch, the present invention, according to the tap quantity of load ratio bridging switch, reasonably arranges capacitor packet count, group capacity, thereby further improves the precision of reactive-load compensation.
Description
Technical field
The present invention relates to the reactive power compensation device in a kind of electric power system.
Background technology
Reactive power compensator is the important electrical in electric power system, for improve electric power system power because ofNumber, reduces system loss, ensures that quality of power supply tool is of great significance. Particularly dynamic passive compensationDevice, can, according to payload and power factor situation, increase or reduce reactive compensation capacity automatically, fullThe reactive requirement of pedal system, thus systematic economy operation ensured.
The principle wiring of traditional reactive power compensator is as shown in Figure 1: while load greatly, compensation condenser group drops into,When load alleviates, excision capacitor group, exits reactive-load compensation.
Because China's load variations is larger, especially rural area is more outstanding. China's high-pressure reactive compensation dressPutting is but traditional whole group capacitor switching, there is no grouping switching technology.
The shortcoming of this traditional reactive-load compensation method is: the switching capacity of compensation condenser group is larger, peak loadIn time, drops into, and substantially can meet the requirement of reactive-load compensation, load reduce or low ebb when load due to load or burden without workLittle, capacitor group cannot put into operation, and whole group of making time is less. System merit when the excision of compensation condenser groupRate factor is low, and electric energy loss is larger, is unfavorable for energy-saving and emission-reduction.
Summary of the invention
The shortcoming existing for traditional reactive power compensator, the present invention has designed the idle automatic tune of intelligent high-pressureHold compensation arrangement, whole group capacitor is being divided into after the multiple unit capacitor of different capabilities, this device can be according to beingThe situation of system load or burden without work, selects suitable compensation capacity, reaches neither overcompensation, also undercompensation not,The raising power factor of large degree.
The present invention adopts following technical scheme:
Intelligent high-pressure is idle automatic capacity transfer compensation arrangement, comprises comprehensive automation device, the control of Capacity Selection switchDevice, Capacity Selection switch, fling-cut switch,
Described comprehensive automation device, for measuring the load or burden without work of main transformer and capacitor group, calculating isSystem load or burden without work, the more current running status of the load or burden without work providing according to capacitance group analysis reactive power compensator isNo reasonable, determine whether reactive compensation capacity is switched to another kind of capacity, when needs capacitor is switched to anotherWhen the capacity of kind, send sub-gate signal to fling-cut switch, when comprehensive automation device detects capacitor group no current,Send signal to Capacity Selection on-off controller, Capacity Selection on-off controller starting capacity selector switch is adjustedGear, has adjusted after gear, and comprehensive automation device sends switching signal to fling-cut switch;
Described Capacity Selection on-off controller, according to the instruction action of comprehensive automation device, starts by rotatingCapacity Selection switch operating mechanism is adjusted to corresponding gear;
Described Capacity Selection switch is the switch of many group motor driving wheel formulas, and every group is set to many grades, and each group is sameAxle construction is switched to identical gear simultaneously.
Also include the capacitor switch for the protection of electrical equipment, described Capacity Selection on-off controller will holdThe operational taps of amount selector switch operating mechanism feeds back to comprehensive automation device, and comprehensive automation device is according to gearDetermine protection definite value.
Described Capacity Selection switch is 3 groups, and every group is set to 7 grades.
Described 3 pool-size selector switches are connected with respectively capacitor, the capacity of 3 group capacitors be respectively a, 2a,4a, by the synthetic 7 kinds of condenser capacities of Capacity Selection switch interior span wiring group, the capacity of every grade of input respectivelyFor: 1 grade of a, 2 grades of 2a, 3 grades of 3a=a+2a, 4 grades of 4a, 5 grades of 5a=a+4a, 6 grades of 6a=2a+4a, 7Shelves 7a=a+2a+4a.
With respect to traditional reactive power compensator, this reactive power compensator has following characteristics:
One, can, according to the tap quantity of load ratio bridging switch, capacitor packet count, grouping be reasonably setCapacity, thus the precision of reactive-load compensation can further be improved.
Two, can adopt less capacitor packet count, realize compared with the reactive compensation capacity of multiscale wiring phaseTo simply.
Three, the System Reactive Power conditions of demand that arrive according to timely monitor are dynamically adjusted reactive-load compensation in charged situationCapacity, thus the power factor (PF) of system improved fast, improve operation conditions, improve business efficiency.
Four, due to the restriction of transition resistance to electric current, when capacitor switching, jump-value of current is little, frequently logicalDisconnected inrush phenomenon is also little to the impact of capacitor, can extend capacitor service life.
Five, same because of the restriction of transition resistance to electric current, when capacitor switching, jump-value of current is little, electricityWhen rheology, cause voltage flicker and wave distortion also little, make the harmonic component in system little, be conducive toThe safe operation of system.
Brief description of the drawings
Fig. 1 is the key wiring diagram of traditional reactive power compensator.
Fig. 2 is the key wiring diagram of reactive power compensator of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is done to further detailed description.
With reference to Fig. 2, intelligent high-pressure is idle automatic capacity transfer compensation arrangement, comprises comprehensive automation device, Capacity SelectionOn-off controller, Capacity Selection switch, fling-cut switch,
Described comprehensive automation device, for measuring the load or burden without work of main transformer and capacitor group, calculating isSystem load or burden without work, the more current running status of the load or burden without work providing according to capacitance group analysis reactive power compensator isNo reasonable, determine whether reactive compensation capacity is switched to another kind of capacity, when needs capacitor is switched to anotherWhen the capacity of kind, to fling-cut switch, K4 sends sub-gate signal, and comprehensive automation device detects capacitor group no currentTime, send signal to Capacity Selection on-off controller, Capacity Selection on-off controller starting capacity selector switchAdjust gear, adjusted after gear, comprehensive automation device sends switching signal to fling-cut switch;
Described Capacity Selection on-off controller, according to the instruction action of comprehensive automation device, starts by rotatingCapacity Selection switch operating mechanism is adjusted to corresponding gear;
Described Capacity Selection switch is the switch of many group motor driving wheel formulas, and every group is set to many grades, and each group is sameAxle construction is switched to identical gear simultaneously. It is 3 groups that the present embodiment adopts Capacity Selection switch, establishes for every groupBe set to 7 grades. Certainly, can also be by changing capacitor packet count, group capacity, combination, contactQuantity realizes the more level and smooth capacity transfer of multiscale, as long as capacity increasing selector switch diameter keeps between contactSafe distance. The moving contact of motor driving wheel formula switch is provided with current limliting transition resistance, available transformer oilAs insulation and arc-extinguishing medium, can select according to condenser capacity difference the current-limiting resistance of different resistances.
The signalizing activity being sent by Capacity Selection on-off controller in currentless situation, selects 1-N shelves,This switch can positive and negative tune switch, and forward while passing into positive sequence three-phase electricity, reverses while passing into negative-phase sequence, coordinates and throwsCut and close, capacitor group can be selected different capabilities operation.
On compensation arrangement, also include the capacitor switch K3 for the protection of electrical equipment, described Capacity Selection is openedThe operational taps of Capacity Selection switch operating mechanism is fed back to comprehensive automation device, comprehensive automation by gateway controllerDevice is determined protection definite value according to gear. In the time that electrical equipment breaks down, comprehensive automation device can send guarantorProtect actuating signal to capacitor switch K3, make K3 tripping operation, reliably excise fault. Due to operation capacitor notDisconnected variation capacity, therefore protects definite value also changing, and adjusts and counts the different protections of cover according to capacitor different capabilitiesDefinite value (the present embodiment adjust 7 cover definite values), selects different protection definite values by Capacity Selection switch gear.
Each pool-size selector switch is all connected with a group capacitor, forms 3 group capacitors, is denoted as theI group capacitor, II group capacitor, III group capacitor, setting I group capacitor capacity is a, IIGroup capacitor capacity is 2a, and II group capacitor capacity is 4a, its concrete large I adjustment as requiredPrecision, capacity and cost are respectively because usually considering, by the synthetic 7 kinds of electricity of Capacity Selection switch interior span wiring groupContainer capacity, the capacity of every grade of input is respectively: 1 grade of a, 2 grades of 2a, 3 grades of 3a=a+2a, 4 grades of 4a, 5Shelves 5a=a+4a, 6 grades of 6a=2a+4a, 7 grades of 7a=a+2a+4a.
Because 3 group selection switches are switched to identical gear simultaneously, be all transferred to 1 grade so work as selector switchTime, the capacity that I group capacitor drops into is a, the capacity that II group capacitor and III group capacitor drop into is allBe 0, the capacity of the total input of capacitor group is a like this;
In the time that selector switch is all transferred to 2 grades, the capacity that I group capacitor and III group capacitor drop into allBe that the capacity that 0, the II group capacitor drops into is 2a, the capacity of the total input of capacitor group is 2a like this;
In the time that selector switch is all transferred to 3 grades, the capacity that I group capacitor drops into is all a, II group electric capacityThe capacity that device drops into is 2a, the capacity all 0 that III group capacitor drops into, like this capacitor group total inputCapacity is 3a;
In the time that selector switch is all transferred to 4 grades, the capacity that I group capacitor and II group capacitor drop into allBe that the capacity that 0, the III group capacitor drops into is 4a, the capacity of the total input of capacitor group is 4a like this;
In the time that selector switch is all transferred to 5 grades, the capacity that I group capacitor drops into is a, II group capacitorThe capacity dropping into is that the capacity that 0, the III group capacitor drops into is 4a, like this appearance of the total input of capacitor groupAmount is 5a;
In the time that selector switch is all transferred to 6 grades, the capacity that I group capacitor drops into is 0, the II group capacitorThe capacity dropping into is all 2a, and the capacity that III group capacitor drops into is all 4a, the total input of capacitor group like thisCapacity be 6a;
In the time that selector switch is all transferred to 7 grades, the capacity that I group capacitor drops into is a, II group capacitorThe capacity dropping into is all 2a, and the capacity that III group capacitor drops into is all 4a, the total input of capacitor group like thisCapacity be 7a.
Our supposition is 2.1Mvar by total capacity capacitor is divided into 3 groups, every pool-size be respectively 0.3Mvar,0.6Mvar, 1.2Mvar, Capacity Selection switch is divided into 9 layers, is 7 gears, by cross-over connection in selector switchLine can be combined into 7 kinds of capacity, and the capacity of every grade of input is respectively: 1 grade of 0.3Mvar, and 2 grades of 0.6Mvar,3 grades of 0.9Mvar(0.3Mvar+0.6Mvar), 4 grades of 1.2Mvar, 5 grades of 1.5Mvar(0.3Mvar+1.2Mvar),6 grades of 1.8Mvar(0.6Mvar+1.2Mvar), 7 grades of 2.1Mvar(0.3Mvar+0.6Mvar+1.2Mvar),Substantially can meet the needs that transformer station's load or burden without work changes.
If the capacitor gross rated capacity of an automatic capacity transfer compensation arrangement outfit of high-voltage reactive is 2.1Mvar. WhenSystem busy hour, meritorious 6MW, System Reactive Power 2.5Mvar, natural power factor isDevice is adjusted to 7 grades and drops into after full group capacitor 2.1Mvar, and power factor is brought up toAfter system loading reduces by 2/5, now meritorious 3.6MW, System Reactive Power1.5Mvar, natural power factor isAs while using traditional capacitor compensation arrangement,Whole group capacitor should excise. As using the automatic capacity transfer compensation arrangement of high-voltage reactive, this device can be according to idle negativeLotus situation, is adjusted to 5 grades of input capacitor 1.5Mvar, and power factor brings up to 1, does not occur overcompensation.
If certain Reactive Compensation Capacitor in Substation is connected on 10kV bus, total capacity is 2.1Mvar, main transformer andAbove part (containing transforming plant lead-in) conversion is 4 Ω to the every equivalent resistance of 10kV, and low ebb duration of load application is everyThey 10 hours, the low ebb 3MW that gains merit, System Reactive Power 1.25Mvar. Now traditional whole group capacitor can not be thrownFortune, natural apparent energy isPower factorElectric currentWhen after the automatic capacity transfer compensation arrangement of installing high-voltage reactive, this device is adjusted to 4 grades of inputsAfter compensation 1.2Mvar, meritorious 3MW, idle 0.05Mvar, apparent energy isPower factor Electric current Compensation when this transformer station's low ebb is loadedAfter the active power loss that reduces be 4 × 187.642×3-4×173.232× 3=62401.64W, saves energy consumption every year62401.64 ÷ 1000 × 10 × 365=227766 kilowatt hours (22.7766 ten thousand kilowatt hour).
Claims (2)
1. the idle automatic capacity transfer compensation arrangement of intelligent high-pressure, is characterized in that, comprises comprehensive automation device, capacity choosingSelect on-off controller, Capacity Selection switch, fling-cut switch,
Described comprehensive automation device, for measuring the load or burden without work of main transformer and capacitor group, calculating isSystem load or burden without work, the more current running status of the load or burden without work providing according to capacitance group analysis reactive power compensator isNo reasonable, determine whether reactive compensation capacity is switched to another kind of capacity, when needs capacitor is switched to anotherWhen kind of capacity, send sub-gate signal to fling-cut switch (K4), comprehensive automation device detect capacitor group withoutWhen electric current, send signal to Capacity Selection on-off controller, Capacity Selection on-off controller starting capacity is selectedSwitch is adjusted gear, has adjusted after gear, and comprehensive automation device sends switching signal to fling-cut switch;
Described Capacity Selection on-off controller, according to the instruction action of comprehensive automation device, starts by rotatingCapacity Selection switch operating mechanism is adjusted to corresponding gear;
Described Capacity Selection switch is the switch of 3 groups of motor driving wheel formulas, the switch of described motor driving wheel formulaMoving contact be provided with current limliting transition resistance, and adopt transformer oil as insulation and arc-extinguishing medium, every group of settingBe 7 grades, respectively organize coaxial configuration, be switched to identical gear simultaneously, described 3 pool-size selector switches respectivelyBe connected with capacitor, the capacity of 3 group capacitors is respectively a, 2a, 4a, by cross-over connection in Capacity Selection switchLine is combined into 7 kinds of condenser capacities, and the capacity of every grade of input is respectively: 1 grade of a, and 2 grades of 2a, 3 grades of 3a=a+2a,4 grades of 4a, 5 grades of 5a=a+4a, 6 grades of 6a=2a+4a, 7 grades of 7a=a+2a+4a.
2. the idle automatic capacity transfer compensation arrangement of intelligent high-pressure according to claim 1, is characterized in that, also bagDraw together the capacitor switch (K3) that is useful on protection electrical equipment, described Capacity Selection on-off controller selects capacityThe operational taps of selecting switch operating mechanism feeds back to comprehensive automation device, and comprehensive automation device is determined according to gearProtection definite value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310230900.0A CN103269080B (en) | 2013-06-09 | 2013-06-09 | Intelligent high-pressure is idle automatic capacity transfer compensation arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310230900.0A CN103269080B (en) | 2013-06-09 | 2013-06-09 | Intelligent high-pressure is idle automatic capacity transfer compensation arrangement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103269080A CN103269080A (en) | 2013-08-28 |
| CN103269080B true CN103269080B (en) | 2016-05-25 |
Family
ID=49012694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310230900.0A Expired - Fee Related CN103269080B (en) | 2013-06-09 | 2013-06-09 | Intelligent high-pressure is idle automatic capacity transfer compensation arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103269080B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1953891A1 (en) * | 2005-09-26 | 2008-08-06 | Ruitian Su | A customer intelligent reactive power automatic compensation energy-saved device |
| CN101504883A (en) * | 2009-03-25 | 2009-08-12 | 如皋市东惠电子有限公司 | Adjustable AC capacitor |
| CN101604846A (en) * | 2009-04-30 | 2009-12-16 | 沈阳华岩电力技术有限公司 | Intelligent high-pressure reactive compensation device and method thereof |
| CN203326611U (en) * | 2013-06-09 | 2013-12-04 | 临安亿安电力电子科技有限公司 | Intelligent high-voltage reactive automatic capacity adjusting compensation device |
-
2013
- 2013-06-09 CN CN201310230900.0A patent/CN103269080B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1953891A1 (en) * | 2005-09-26 | 2008-08-06 | Ruitian Su | A customer intelligent reactive power automatic compensation energy-saved device |
| CN101504883A (en) * | 2009-03-25 | 2009-08-12 | 如皋市东惠电子有限公司 | Adjustable AC capacitor |
| CN101604846A (en) * | 2009-04-30 | 2009-12-16 | 沈阳华岩电力技术有限公司 | Intelligent high-pressure reactive compensation device and method thereof |
| CN203326611U (en) * | 2013-06-09 | 2013-12-04 | 临安亿安电力电子科技有限公司 | Intelligent high-voltage reactive automatic capacity adjusting compensation device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103269080A (en) | 2013-08-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103595063B (en) | A kind of energy accumulation current converter and battery energy storage system thereof | |
| CN204205599U (en) | A kind of electronic type feeder line on-load voltage regulating device | |
| CN104868477A (en) | Voltage managing device and method based on movable energy storage power station and on-load voltage regulator | |
| CN201878088U (en) | Automatic voltage regulator of switching voltage regulator (SVR) line | |
| CN105259382A (en) | Multi-transformation ratio current transformer unified multiplying power metering method and device | |
| CN205265308U (en) | Transformer substation uses ultracapacitor system continuous current plant in station | |
| CN203983006U (en) | Capacity and pressure regulating three-phase transformer | |
| CN204597483U (en) | A kind of voltage controlling device based on Mobile energy storage power station and Loading voltage regulator | |
| CN201829961U (en) | Joint-compensation type low-voltage intelligent combined reactive power compensator | |
| CN203632254U (en) | Automatic reactive compensation intelligent power distribution transformer | |
| CN203587718U (en) | Low-voltage ride through detection device for grid-connected photovoltaic inverter | |
| CN204668960U (en) | A kind of intelligent modularized three-phase imbalance dynamic reactive compensation device | |
| CN2773958Y (en) | Boxed variable-capacity substation | |
| CN203398795U (en) | Low-voltage reactive-power dynamic compensation device | |
| CN201393070Y (en) | Low-voltage reactive-power comprehensive compensation device | |
| CN103269080B (en) | Intelligent high-pressure is idle automatic capacity transfer compensation arrangement | |
| CN203326611U (en) | Intelligent high-voltage reactive automatic capacity adjusting compensation device | |
| CN204144950U (en) | A kind of compensation program control circuit on-load voltage regulation system | |
| CN203574377U (en) | Static reactive power compensator for 10kV long-distance power supply | |
| CN203103962U (en) | Voltage reactive integrated compensator | |
| CN202435047U (en) | Reactive power adjustable parallel reactor | |
| CN204271513U (en) | A kind of loaded capacity-regulated transformer station realizing Based Intelligent Control | |
| CN101964530A (en) | Novel low-voltage distribution transformer reactive power compensation device | |
| CN201004556Y (en) | Remote monitoring device for low voltage distribution and powerless optimization | |
| CN202206141U (en) | Submerged arc furnace secondary low pressure fixing and dynamic energy-saving compensation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160525 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |