CN209545157U - In-place reactive power compensation device - Google Patents
In-place reactive power compensation device Download PDFInfo
- Publication number
- CN209545157U CN209545157U CN201720091402.6U CN201720091402U CN209545157U CN 209545157 U CN209545157 U CN 209545157U CN 201720091402 U CN201720091402 U CN 201720091402U CN 209545157 U CN209545157 U CN 209545157U
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- Prior art keywords
- capacitor
- discharger
- reactive power
- power compensation
- compensation device
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- 239000003990 capacitor Substances 0.000 claims abstract description 112
- 230000005611 electricity Effects 0.000 claims description 9
- 239000013589 supplement Substances 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000004044 response Effects 0.000 abstract description 6
- 230000001360 synchronised effect Effects 0.000 description 17
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 238000005245 sintering Methods 0.000 description 5
- 229910000881 Cu alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- HPDFFVBPXCTEDN-UHFFFAOYSA-N copper manganese Chemical compound [Mn].[Cu] HPDFFVBPXCTEDN-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000001012 protector Effects 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000006467 substitution reaction Methods 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)
Abstract
The utility model discloses a kind of in-place reactive power compensation devices, the discharger including cabinet body, capacitor and discharge time less than 3 seconds；The capacitor and the discharger are respectively positioned on the interior of the cabinet, and the discharger is in parallel with the capacitor.In-place reactive power compensation device provided by the utility model, by installing discharger of the discharge time less than 3 seconds additional on the basis of capacitor, substantially reduce the reactive compensation response time of in-place reactive power compensation device, minimum continuous switching time interval was up to 5 seconds, reactive compensation tracking response ability is strong, meets the requirement of national standard, at low cost, it can meet the tendency of extensively in market, meet the needs of client.
Description
Technical field
The utility model relates to power supply technique field, in particular to a kind of in-place reactive power compensation device.
Background technique
Capacitor Intelligent Synchronous Switch in in-place reactive power compensation device, which is mainly responsible for through switching capacitance, controls capacitor
Device work, since capacitor Intelligent Synchronous Switch usually has an investment interval time, is generally all set as 3 minutes.Work as capacitor
Device puts into operation after middle excision, it is desirable to which investment progress reactive compensation needs to wait 3 minutes again.The reason is that capacitor fills
It is cut off again after electricity and has slow discharge time, when the discharge voltage of capacitor is only lower than definite value, relay contact both ends electricity
Pressing through zero point judgement could be accurate.Regulation capacitor internal will have discharge resistance in national standard, but cannot be too small, otherwise not be able to satisfy
Capacitor temperature increase requirement.Provide that capacitor discharge time cannot be greater than 3 minutes in national standard.
But in actual reactive compensation case, the meeting of power factor and reactive power period of change at 5~180 seconds
There are many equipment, such as mine elevator, oil field equipment, stamping equipment etc., it is desirable that compensation device being capable of dynamically track compensation.
So if discharge time shortens to meet within 3 seconds and is more widely applied demand after capacitor is cut off.However
The silicon-controlled dynamic compensating device higher cost of existing Millisecond, can not meet the tendency of extensively in market, to meet the needs of client.
Utility model content
Meet dynamically track compensation demand, while meeting capacitor national standard medium temperature raising of indices standard, is hindered by capacitor internal resistance
Value adjustment cannot achieve, and only install discharger additional except capacitor ontology.
Based on this, in-place reactive power compensation device provided by the utility model, including cabinet body, capacitor and discharge time are small
In 3 seconds dischargers；
The capacitor and the discharger are respectively positioned on the interior of the cabinet, and the discharger is in parallel with the capacitor.
As an embodiment, the discharger include inductance and with the concatenated resistance of the inductance.
As an embodiment, the capacitor is three-phase compensation capacitor or three-phase separate-supplement capacitor.
As an embodiment, the discharger has 3；
3 dischargers are sequentially connected, and form the combined discharge device for three-phase separate-supplement capacitor discharge.
As an embodiment, the discharger has 3；
Two of them in 3 dischargers are parallel with one another, and connect with remaining one, formed for three-phase compensation capacitor
The combined discharge device of device electric discharge.
As an embodiment, in-place reactive power compensation device provided by the utility model further includes and the capacitor
The multiple groups capacitor loop of device connection；
The capacitor loop is arranged in the interior of the cabinet；
The connecting line of the capacitor loop is to grip to gush resistance made of manganese copper alloy material.
As an embodiment, the volume of the cabinet body is less than 0.2 cubic metre.
As an embodiment, it is described grip gush resistance resistance value be 5 milliohms.
As an embodiment, the quantity of the capacitor loop is 6.
As an embodiment, in-place reactive power compensation device provided by the utility model further includes temperature controller
And aerofoil fan；
The temperature controller and the aerofoil fan are located at the interior of the cabinet, and the temperature controller connects the axis
Flow fan；When the temperature of the capacitor is more than preset temperature threshold, the temperature controller controls the aerofoil fan pair
The capacitor cools down.
The beneficial effects of the utility model compared with the prior art lie in:
In-place reactive power compensation device provided by the utility model is less than by installing discharge time additional on the basis of capacitor
3 seconds dischargers substantially reduce the reactive compensation response time of in-place reactive power compensation device, minimum continuous switching time interval
Up to 5 seconds, reactive compensation tracking response ability was strong, meets the requirement of national standard, at low cost, can meet the tendency of in market, meet extensively
The demand of client.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the in-place reactive power compensation device that the utility model embodiment one provides；
Fig. 2 connect circuit diagram with the one of three-phase compensation capacitor for discharger shown in Fig. 1；
Fig. 3 is another connection circuit diagram of discharger and three-phase compensation capacitor shown in Fig. 1；
Fig. 4 is quickly to be put using the three-phase separate-supplement capacitor to synchronous switch switching that discharger shown in Fig. 1 forms
The schematic illustration of the combined discharge device of electricity；
Fig. 5 is quickly to be put using the three-phase compensation capacitor to synchronous switch switching that discharger shown in Fig. 1 forms
The schematic illustration of the combined discharge device of electricity；
Fig. 6 is to grip the main view for gushing resistance shown in Fig. 1；
Fig. 7 is to grip the top view for gushing resistance shown in Fig. 1.
Specific embodiment
Below in conjunction with attached drawing, the above and other technical features and advantages of the present invention are carried out clearly and completely
Description, it is clear that described embodiment is only the section Example of the utility model, rather than whole embodiments.
As described above, if after capacitor is cut off discharge time shorten within 3 seconds can meet it is more extensive
Application demand, while being also contemplated that device power consumption when capacitor is put into and wanting small, discharge device temperature rise is less than 30K.Capacitor is put
Electricity generallys use the resistive element mode in parallel with capacitor.When exchange 380V/50HZ voltage is added in the charging of capacitor both ends, electricity
This alternating voltage is also born in resistance simultaneously.After disconnecting alternating voltage, capacitor is discharged by resistance, and discharge time and capacitor hold
It is worth directly proportional to the product of resistance.
Based on the above demand, the utility model is by installing discharger additional on the basis of capacitor, in capacitor plus exchange
When 380V/50HZ voltage, the electric current passed through on the discharger element in parallel with capacitor is the smaller the better, so that discharge device consumption
Power is also small, and operating temperature can be low.And after disconnecting alternating voltage, capacitor is the bigger the better by the electric current that discharge device discharges,
Discharge time will be short in this way.
Please refer to 1, the in-place reactive power compensation device that the utility model embodiment one provides, including cabinet body 1, nameplate 2, display
Screen 3, fixed connection terminal 5, grips that gush resistance 6, wiring junction box 7, cabinet partition 8, capacitor intelligently same at breaker of plastic casing 4
Walk switch 9, communicating circuit plate 10, plastics dug hand 11, connect guide rail 12, temperature controller 13, aerofoil fan 14, capacitor 15,
Capacitor support frame 16, discharger 17 and chassis backplane 18.
The utility model embodiment one high-impedance behavior that has while but being existed under 50 hertz of exchange using magnetic core coil
There is low-impedance characteristic under direct current, discharger of the discharge time less than 3 seconds is increased in traditional in-place reactive power compensation device
17, discharger 17 is in parallel with capacitor 15, and is located in cabinet body 1.
Single discharger provided by the embodiment of the utility model can be constituted by inductance and with the concatenated resistance of inductance.It is real
Border using multiple dischargers composition combined discharge device with capacitor in use, can be used cooperatively.For example, 3 dischargers are used
One plastic housing and epoxy resin encapsulated are formed and are put with the Rapid Combination of three-phase compensation capacitor and three-phase separate-supplement capacitor matching
Electric appliance.In this way, the three-phase for matching various different size capacity can be made by the parameter and size for changing single discharger
The combined discharge device of capacitor will shorten within 1 second discharge time.Specific embodiment is as follows:
As an embodiment, the connection circuit of discharger and three-phase compensation capacitor is as shown in Figure 2: K1, K2 are
Capacitor Intelligent Synchronous Switch, LA+RA, LB+RB, LC+RC are respectively 3 identical dischargers, and it is total that C1, C2, C3 form three-phase
Capacitor is mended, in the process of K1, K2 switching capacitance, it is warm to connect in AC alternate discharger (17 degrees Celsius) work under normal temperature environment
Degree reaches 55 degrees Celsius, connects that operating temperature reaches 38 degrees Celsius under normal temperature environment in CB alternate discharger, connects alternate in AB
Discharger under normal temperature environment operating temperature reach 25 degrees Celsius, capacitor both ends discharge time is respectively less than 3 seconds.
As another embodiment, temperature when in order to make each discharger work is average, and single discharger
Maximum temperaturerise reduce, under the premise of not changing discharger quantity, the connection circuit of discharger and three-phase compensation capacitor is such as
Shown in Fig. 3: K1, K2 are capacitor Intelligent Synchronous Switch, and LA1+RA1, LA2+RA2, LC+RC are respectively 3 identical dischargers,
C1, C2, C3 form three-phase compensation capacitor, during K1, K2 switching capacitance, the discharger temperature difference of three same sizes
Mutation is small, connects that (17 degrees Celsius) operating temperature reaches 42 degrees Celsius under normal temperature environment in two AC alternate dischargers, connects
CB alternate discharger operating temperature under normal temperature environment reaches 44 degrees Celsius, and capacitor both ends discharge time is respectively less than 3 seconds.
Similarly, as shown in figure 4, the identical discharger of three specifications shown in Fig. 2 is interconnected, one can be made into specially
Combined discharge device of the door to the three-phase separate-supplement capacitor repid discharge of synchronous switch switching；As shown in figure 5, by shown in Fig. 3 three
The identical discharger of a specification is interconnected by second of connection type, can be made into one and is dedicated for the three of synchronous switch switching
The combined discharge device of capacitor repid discharge is mutually mended altogether.
The in-place reactive power compensation device that the utility model embodiment one provides, based on the setting of above-mentioned discharger, idle benefit
It is short to repay the response time, and for minimum continuous switching time interval up to 5 seconds, reactive compensation tracking response ability was strong, at low cost, meets visitor
The use demand at family.
In-place reactive power compensation device requires to occupy little space for fabricating yard, flexible for installation.In fact, using load-side
Local reactive power compensation scheme, which is compared, uses supply side centralization Scheme of Reactive Power Compensation, can reduce line loss, compensating power
Effect is more preferable.However existing in-place reactive power compensation device, usual volume is larger (being greater than 0.5 cubic metre), and it is existing to be not easy to user
Field installation.If reducing the volume of in-place reactive power compensation device, it is meant that have to the connection of capacitor loop in shortening device
Copper wire, however there is the contact sintering of capacitor Intelligent Synchronous Switch at runtime in the reactive power compensator for saving connection copper wire
The phenomenon of the failure that can not be separated.
It burns the contact for the Intelligent Synchronous Switch that the reactive power compensator for saving connection copper wire has capacitor at runtime
The phenomenon of the failure that knot can not separate, and the intelligence of capacitor is not present in same capacitor in bulky reactive power compensator
Can synchronous switch contact sintering and can not separate phenomenon of the failure.This is because the Intelligent Synchronous Switch of usually capacitor is in electricity
Press through zero point investment, but the deviation due to always having 200us in actual motion；And due to there is multiple groups capacitor in device, so
When one group or more of capacitor investment, the capacitor put into again, which shoves, is worth capacity of short circuit and switch that size depends on device entirety
Zero crossing deviation.Capacitor can be approximated to be zero in the moment impedance of investment, then in device every group of capacitor loop connection copper
Line impedence reforms into investment capacitor and shoves the determinant of size.Shorter connection copper wire shoves more under identical capacity of short circuit
Greatly.By contact when shoving more than contact load current value 2 times or more, contact will be sintered.Since volume is biggish idle
The conducting wire that capacitor loop is connected in compensation device is longer, so resistance is larger in capacitor loop, therefore capacitor would not occur
The phenomenon of the failure that the sintering of Intelligent Synchronous Switch contact can not separate.
Based on above principle, further, the in-place reactive power compensation device selection that the utility model embodiment one provides
The manganese copper alloy material of high resistivity gushes resistance as gripping for capacitor loop, connects long electric wire for replacing, both meets corpusculum
The short connecting line length requirement that product installation needs, and the requirement of capacitor loop middle impedance value is met, and pass through bulky capacitor electricity
The needs of stream.The impedance and size of gushing resistance are gripped in use, can determine according to specific capacitor loop demand, to eliminate capacitor
The phenomenon of the failure that the sintering of Intelligent Synchronous Switch contact can not separate, using flexible.
With continued reference to Fig. 1, the multiple groups capacitor loop connecting with capacitor 15, the company of capacitor loop are additionally provided in cabinet body 1
Wiring is to grip to gush resistance 6 made of manganese copper alloy material.Resistance is gushed in use, can determine to grip according to specific capacitor loop demand
6 impedance and size is easily installed, makes to eliminate the phenomenon of the failure that the sintering of 9 contact of capacitor Intelligent Synchronous Switch can not separate
With flexible.
As shown in Figure 6 and Figure 7, it grips and gushes resistance and primarily serve the effect shoved of containment, resistance value is 5 milliohms, and when work is high
Degree is 27 millimeters, and upper end projection length is 30 millimeters, and spread length is 120 millimeters, meets through 25A electric current and has 5 milliohms
Line impedance, be easily installed, cost is relatively low.
The present embodiment gushes resistance as gripping for capacitor loop by using the manganese copper alloy material of high resistivity, for replacing
Long electric wire is connected, has not only met the short connecting line length requirement that small size installation needs, but also meet capacitor loop middle impedance value
Requirement, and needs by bulky capacitor electric current.
Existing reactive compensation cabinet volume is too big (typically larger than 0.5 cubic metre), and occupied space is larger, and inconvenience is pacified on site
Dress.In-place reactive power compensation device provided in this embodiment concentrates on all components in cabinet body 1, and the volume of cabinet body 1 is less than
0.2 cubic metre, solves the small size structure that in-place reactive power compensation device optimizes under the conditions of multiloop a variety of combined capacities
Design problem.
Further, in in-place reactive power compensation device provided in this embodiment, the quantity of capacitor loop is 6, reactive capability
Configuration mode is flexible, and reactive compensation effect is good.
The promising product function performance that meets of institute can be required into required electric components, functional module using the utility model
Under the premise of meeting national standard, is connected with most compact mounting means combination, meet six circuit maximum 120kvar just
The requirement of ground reactive power compensator and in-site installation space less than 0.2 cubic metre saves a large amount of connection copper wire, to reduce
Device overall cost, and convenient for installing on the spot.
In-place reactive power compensation device volume provided by the above embodiment is less than 0.2 cubic metre, and all components are in work
Heat is distributed as Shi Douhui, can thus make temperature in device housing higher.In general, capacitor is transported under 40 degree of environment temperatures
Internal temperature will reach 60 degree within row 3 hours or so, at this point, capacitor Intelligent Synchronous Switch will do it overheat protector, make capacitor
Device is out of service.
Based on this, with continued reference to Fig. 1, the utility model is added in in-place reactive power compensation device provided by the above embodiment
Temperature controller 13 and aerofoil fan 14, to carry out temperature control to capacitor 15.For example, when 15 temperature of capacitor is more than 45
When spending, capacitor Intelligent Synchronous Switch 9 detects this temperature, notifies temperature controller 13, temperature control with rs485 communication modes
Device 13 controls two aerofoil fans 14 and works, and is radiated with air cooling way, so that the permanent worker under 40 degree of environment temperatures of capacitor 15
When making, internal temperature is no more than 60 degree, will not be out of service because of overheat protector.When 15 temperature of capacitor is lower than 40 degree, axis stream
Fan 14 stops working.Further enhancing the temperature control capacity of device entirety, it is ensured that capacitor 15 runs without interruption for a long time,
Safe and efficient realization is installed and used on the spot in load-side.
Particular embodiments described above has carried out into one the purpose of this utility model, technical scheme and beneficial effects
The detailed description of step, it should be understood that the foregoing is merely specific embodiment of the utility model, be not used to limit this reality
With novel protection scope.Particularly point out, to those skilled in the art, it is all the spirit and principles of the utility model it
Any modification, equivalent substitution, improvement and etc. that are interior, being done, should be included within the scope of protection of this utility model.
Claims (5)
1. a kind of in-place reactive power compensation device, which is characterized in that including cabinet body, capacitor and discharge time putting less than 3 seconds
Electric appliance；
The capacitor and the discharger are respectively positioned on the interior of the cabinet, and the discharger is in parallel with the capacitor.
2. in-place reactive power compensation device according to claim 1, which is characterized in that the discharger include inductance and with
The concatenated resistance of inductance.
3. in-place reactive power compensation device according to claim 1, which is characterized in that the capacitor is three-phase compensation capacitor
Device or three-phase separate-supplement capacitor.
4. in-place reactive power compensation device according to claim 1, which is characterized in that the discharger has 3；
3 dischargers are sequentially connected, and form the combined discharge device for three-phase separate-supplement capacitor discharge.
5. in-place reactive power compensation device according to claim 1, which is characterized in that the discharger has 3；
Two of them in 3 dischargers are parallel with one another, and connect with remaining one, and formation is put for three-phase compensation capacitor
The combined discharge device of electricity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720091402.6U CN209545157U (en) | 2017-01-24 | 2017-01-24 | In-place reactive power compensation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720091402.6U CN209545157U (en) | 2017-01-24 | 2017-01-24 | In-place reactive power compensation device |
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| Publication Number | Publication Date |
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| CN209545157U true CN209545157U (en) | 2019-10-25 |
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| CN201720091402.6U Active CN209545157U (en) | 2017-01-24 | 2017-01-24 | In-place reactive power compensation device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655216A (en) * | 2017-01-24 | 2017-05-10 | 浙江南德电气有限公司 | Local reactive power compensation device |
| CN106655217A (en) * | 2017-01-24 | 2017-05-10 | 浙江南德电气有限公司 | In-situ reactive compensation device |
| US11720009B2 (en) | 2020-10-21 | 2023-08-08 | Coretronic Corporation | Illumination system and projection device |
-
2017
- 2017-01-24 CN CN201720091402.6U patent/CN209545157U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655216A (en) * | 2017-01-24 | 2017-05-10 | 浙江南德电气有限公司 | Local reactive power compensation device |
| CN106655217A (en) * | 2017-01-24 | 2017-05-10 | 浙江南德电气有限公司 | In-situ reactive compensation device |
| US11720009B2 (en) | 2020-10-21 | 2023-08-08 | Coretronic Corporation | Illumination system and projection device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Room 1103-1, 11th Floor, Building 1, Aoqiang Building, No. 6 Xiyuan Fifth Road, Sandun Town, Xihu District, Hangzhou City, Zhejiang Province, 310030 Patentee after: Zhejiang Nande Electric Group Co.,Ltd. Address before: 310000, 2nd and 3rd floors, Building B, Fuhua Building, No. 21, Sujiaba, Lubanqiao, Sandun Town, Xihu District, Hangzhou City, Zhejiang Province Patentee before: ZHEJIANG NANDA ELECTRICAL Co.,Ltd. |