CN2632920Y - Supar-capacitance intelligent control module zero maintenance DC screen - Google Patents
Supar-capacitance intelligent control module zero maintenance DC screen Download PDFInfo
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- CN2632920Y CN2632920Y CN 03254207 CN03254207U CN2632920Y CN 2632920 Y CN2632920 Y CN 2632920Y CN 03254207 CN03254207 CN 03254207 CN 03254207 U CN03254207 U CN 03254207U CN 2632920 Y CN2632920 Y CN 2632920Y
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- fuse
- control module
- intelligent control
- super capacitor
- power
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Abstract
The utility model relates to a super-capacitance intelligent control module zero maintenance DC screen, which is characterized in that the utility model comprises an air breaker(Q 1), a fuse(4 F U), a smart control module(U 1), an air breaker(Q 2), a fuse(5 F U), a smart control module(U 2), an air breaker(Q 3), a fuse(7F U), a smart control module(U 3), a voltmeter(V 2), an ultra capacitance(C 2) and an ultra capacitance(C 1); wherein, the smart control is arranged between the module(U 1) fuse(4 F U) and the air breaker(Q 1); the smart control module(U 2) is positioned between the fuse(5 F U) and the air breaker(Q 2); the smart control module(U 3) is positioned between the fuse(7F U) and the air breaker(Q 3); the voltmeter(V 2) is in parallel connected with the ultra capacitance(C 1) and the ultra capacitance(C 2); the ultra capacitance(C 1) is also connected with a fuse(6 FU) in serial first, and is in parallel connected with a main connected of an air breaker(Q 4), and then is connected to an anode(HM positive) and a cathode(HM negative) of a switching generatrix; the switching generatrix anode(HM positive) is serial connected with a resistance(R) first and then is connected to a diode(D) anode; a cathode of the diode(D) is connected with a control generatrix anode(KM negative). The DC screen has the advantages of small in loss; long in service life; energy saving; requires non-maintenance; chilliness and hot weather resistance; favorable to environment etc.
Description
Technical field
The utility model belongs to the power distribution equipment field, and more particularly it is that a kind of super capacitor intelligent control module zero dimension is protected direct current cabinet.It is applicable to that DC power supply is the middle-size and small-size transformer station of not holding of 110V, 220V.
Background technology
In China 110KV, 35KV, the terminal transformer station of 10KV, and station-service 6KV distribution system, the power supply that has extensively adopted dc screen, conduct operation, control and protected.But dc screen has following shortcoming: the charging interval is long, is afraid of high and low temperature, and especially when temperature was too low, it will be gone on strike most likely; The maintenance of batteries is a hang-up especially, and a storage battery " is had an attack of one's old illness " and often caused other storage battery chain-react, scraps down to whole batteries, so useful life is short.Moreover, also can pollute after storage battery is scrapped environment.
Summary of the invention
The purpose of this utility model is to solve the problems referred to above that dc screen system of existing transformer station exists, and provides a kind of super capacitor intelligent control module zero dimension to protect direct current cabinet.It is fast that this direct current cabinet has the speed of discharging and recharging, and loss is little, energy-conservation, and the life-span is long, need not any maintenance, can cold-resistant and heat, and help advantage such as environmental protection.
The purpose of this utility model reaches by following measure: a kind of super capacitor intelligent control module zero dimension is protected direct current cabinet, it comprises No. 1 used change AC power 1A.1B.1C.1N order and three-phase fuse 1FU, three pairs of main contact series connection of air circuit Q1, its DC power supply output is connected with fuse 4FU, No. 2 used change AC power 2A.2B.2C.2N orders and three-phase fuse 2FU, three pairs of main contact series connection of air circuit Q2, its DC power supply output is connected with fuse 5FU, the output parallel connection of two AC power, positive power source terminal is connected to the anodal HM+ of closing bus bar after sealing in the bus current Table A, negative power end is connected to closing bus bar negative pole HM-, and voltmeter V1 just is being connected in parallel on closing bus bar, negative pole HM+, on the HM-; Standby AC power 3A.3B.3C.3N order is connected with three pairs of main contacts of three-phase fuse 3FU, air circuit Q3, and its dc power output end is with after fuse 7FU connects; V2 is in parallel with voltmeter, and through the series connection of air circuit Q5 main contact, correspondence is connected to closing bus bar positive and negative electrode HM+, HM-respectively again; Its special character is that it also is included in intelligent control module U1, air circuit Q2 and intelligent control module U2, air circuit Q3 between the fuse 5FU and the intelligent control module U3 between the fuse 7FU between air circuit Q1 and the fuse 4FU, and the super capacitor C2 in parallel with voltmeter V2, super capacitor C2 output correspondence respectively is connected on HM+, HM-on the closing bus bar positive and negative electrode; Super capacitor C1; Described super capacitor C1 is through with after fuse 6FU connects, connect with air circuit Q4 main contact again, and be connected to HM+, HM-on the closing bus bar positive and negative electrode, behind the closing bus bar cathode series resistance R, connect diode D anode, diode D negative electrode meets the anodal KM+ of control bus.
Described intelligent control module U1, U2, U3 adopt spike suppression device and EMI filter circuit, are direct current by full bridge rectifier with the three-phase alternating current electric rectification, by DC/DC high frequency conversion circuit the dc inverter of gained are become the direct current output of stable and controllable again.
The capacitance of described super capacitor C1, C2 is 0.1-180F.
The utlity model has following advantage: the intelligent control module U1.U2 of normal operation is connected to the two-way incoming power respectively, has saved double supply automatic switch-over circuit.Closing bus bar is very little with control busbar voltage difference, has saved the automatic reduction voltage loop of silicon chain.Adopt super capacitor energy-storage,, do not need the characteristics safeguarded, saved traditional direct current cabinet batteries a large amount of maintenance workload and 3-5 are needed the more fund of new accumulator, and helped environmental protection because super capacitor has the long-life.
Description of drawings
Fig. 1 key wiring diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing performance of the present utility model is described further:
C1 super capacitor 30F 220V, C2 super capacitor 0.85F 280V
With reference to Fig. 1; Attract 380V AC power 1A.1B.1C.1N by No. 1 used change and cause this screen three-phase fuse 1FU, with after three pairs of main contacts of air circuit Q1 are connected, receive intelligent control module U1 input again, its dc power output end is connected with fuse 4FU.It is used covert same with No. 1 equally to attract the connected mode of AC power by No. 2 used changes, the output parallel connection of two modules, positive power source terminal is connected to the closing bus bar positive pole after sealing in the bus current Table A, and negative power end is connected to the closing bus bar negative pole, and voltmeter V1 just is being connected in parallel on closing bus bar.On the negative pole.
Super capacitor C1 connects with air circuit Q4 main contact again through with after fuse 6FU connects, and just is being connected to closing bus bar respectively.Negative pole HM+, HM-behind the closing bus bar cathode series resistance R, connect diode D anode, and its negative electrode meets the anodal KM+ of control bus.
Cause this screen three-phase fuse 3FU by standby 380V AC power 3A.3B.3C.3N, again with after three pairs of main contacts of air circuit Q3 are connected, receive intelligent control module U3 input, its dc power output end is with after fuse 7FU connects, in parallel with super capacitor C2 and voltmeter V2, through the series connection of air circuit Q5 main contact, correspondence just is being connected to closing bus bar respectively again.Negative pole HM+, HM-.
Intelligent control module U1, U2, U3, the high frequency switching rectifier module of selecting for use Japanese TDK or ABB AB to produce.Collecting voltage control, Current Control, and process control realizes the super capacitor constant current charge in one, reach rated voltage after, transfer constant voltage control automatically to, it is minimum that maintenance workload is reduced to.This module aims to super capacitor fast charging and develops.Adopt the input of phase three-wire three 380VAC balance, no current in middle wire loss, at ac input end, adopt advanced spike suppression device and EMI filter circuit, is direct current by full bridge rectifier with the three-phase alternating current electric rectification, by DC/DC high frequency conversion circuit (300KHz) dc inverter of gained is become the direct current output of stable and controllable again.Pulsewidth tone pitch system circuit (PWM) and soft switch resonant tank are regulated the pulse duration and the phase shifting angle of HF switch automatically according to the variation of electrical network and load, make the output voltage electric current can both keep stable under the situation of any permission.
Specific implementation of the present utility model is such: the AC power of module U1.U2 is taken from transformer station respectively No. 1.No. 2 used step-down is pressed 380 volts of power supplys, close behind the air circuit Q1.Q2, module U1.U2 works simultaneously, provide the 20A electric current to charge to closing bus bar after the output parallel connection to super capacitor C1 (30F), busbar voltage Table V 1 is started from scratch and is slowly risen, after 3-5 minute, when being indicated to 220V, charging finishes.After the control that will respectively allot this moment (1 control, N control), signal (flash of light), the switches such as (1 combined floodgate, N close a floodgate) that closes a floodgate dropped into, DC power supply promptly all put into operation.
When the two-way incoming power all had electricity, module U1.U2 worked simultaneously, and the distribution of autobalance load current.When certain road power supply power failure or the damage of certain intelligent control module, another road and another intelligent control module can be competent at the supply of DC power supply fully, and line fault and intelligent control module all can send alarm signal by PLC.When two-way incoming power full cut-off electricity, during regular load 5A, can keep DC bus-bar voltage 10 minutes by super capacitor C1 energy stored, during this period, can finish the everything of relaying protection.As, the low-voltage variation of motor etc., any one road power supply incoming call after several minutes, just can recover normal operation.
During the super capacitor initial charge, intelligent control module is operated in constant current state, and maximum current is set to 10A, saves current limiting element, and after the super capacitor terminal voltage reached 220V+5%, intelligent control module transferred constant voltage control automatically to, and the precision of voltage regulation reaches 0.5%.Traditional direct current cabinet for to charge in batteries, need provide the rated voltage that is higher than more than 10%, could satisfy the charging requirement of storage battery.And too high voltage is totally unfavorable to the control bus, therefore, traditional direct current cabinet is between closing bus bar and control bus, all increase and adorned step-down silicon chain automatic voltage regulator, this adjuster is formed by tens of heavy-duty diode serial connections, comparatively speaking, failure rate is higher, as long as a silicon diode broken string is arranged, might cause the control bus loss of pressure, and accidents caused.Because super capacitor can be operated in the range of nominal tension, between closing bus bar and the control bus, voltage difference is minimum, can save voltage regulator.Replace with current-limiting resistance, cause excessive short circuit current after preventing to control busbar short-circuit.Thereby, make this device both more reliable, reduced cost again.
When closing bus bar is closing a floodgate moment, in the time of need providing greater than the 100A electric current,, can not damage the intelligent control module formula that impacts because intelligent control module U1, U2 have the automatic current limiting function.And the characteristics of super capacitor can provide the electric current greater than 300A moment, thereby the required energy that closes a floodgate is provided by super capacitor, and like this, it is very big that the capacity of intelligent control module U1, U2 need not to do, and increased reliability, reduced cost.
Every intelligent control module all is provided with non-return loop, only allow electric current by the intelligent control module output to outflow, do not allow to flow backwards.When certain intelligent control module generation internal short-circuit, another intelligent control module and super capacitor all can not provide short circuit current to the intelligent fault control module, can not enlarge fault coverage.
Intelligent control module U3 and super capacitor C2 (0.85F) are in cold standby state.Be that air circuit Q3.Q5 is at open position.This is to be in operation in order to prevent, as is struck by lightning, under the situations such as system operation overvoltage, though intelligent control module has adopted the multiple-protection measure to take precautions against, if U1, U2 damage simultaneously.Or C1 is when damaging, and can drop into air circuit Q3.Q5 is emergent, takes on the operation of transformer station with intelligent control module U3 and super capacitor C2, leaves the time of abundance for the repairing fault.Intelligent control module U1, U2, U3 electric parameter and mechanical dimension are in full accord, adopt dongle configuration, can directly exchange each other, and it is very convenient to keep in repair.
Need to prove: to those of ordinary skill in the art, under the prerequisite of the utility model principle, can also make some improvement or distortion to the utility model, this belongs to protection range of the present utility model equally.
Claims (3)
1, a kind of super capacitor intelligent control module zero dimension is protected direct current cabinet, it comprises No. 1 used change AC power (1A.1B.1C.1N) order and three-phase fuse (1FU), three pairs of main contact series connection of air circuit (Q1), its DC power supply output is connected with fuse (4FU), No. 2 used change AC power (2A.2B.2C.2N) order and three-phase fuse (2FU), three pairs of main contact series connection of air circuit (Q2), its DC power supply output is connected with fuse (5FU), the output parallel connection of two AC power, positive power source terminal is connected to closing bus bar positive pole (HM+) after sealing in bus current table (A), negative power end is connected to closing bus bar negative pole (HM-), and voltmeter (V1) just is being connected in parallel on closing bus bar, on the negative pole; Standby AC power (3A.3B.3C.3N) order is connected with three-phase fuse (3FU), three pairs of main contacts of air circuit (Q3), and its dc power output end is with after fuse (7FU) is connected; (V2) is in parallel with voltmeter, and through the series connection of air circuit (Q5) main contact, correspondence is connected to closing bus bar positive and negative electrode (HM+, HM-) respectively again; It is characterized in that also being included in intelligent control module (U3) between intelligent control module (U2), air circuit (Q3) and the fuse (7FU) between intelligent control module (U1), air circuit (Q2) and the fuse (5FU) between air circuit (Q1) and the fuse (4FU) at it, and the super capacitor (C2) in parallel with voltmeter (V2), super capacitor (C1); Described super capacitor (C1) is through with after fuse (6FU) is connected, connect with air circuit (Q4) main contact again, and be connected to (HM+, HM-) on the closing bus bar positive and negative electrode, behind the closing bus bar cathode series resistance (R), connect diode (D) anode, diode (D) negative electrode connects control bus positive pole (KM+).
2, a kind of super capacitor intelligent control module zero dimension according to claim 1 is protected direct current cabinet, it is characterized in that described intelligent control module (U1, U2, U3) is to adopt spike suppression device and EMI filter circuit, is direct current by full bridge rectifier with the three-phase alternating current electric rectification, by DC/DC high frequency conversion circuit the dc inverter of gained is become the direct current output of stable and controllable again.
3, a kind of super capacitor intelligent control module zero dimension according to claim 1 is protected direct current cabinet, it is characterized in that the capacitance of described super capacitor (C1, C2) is 0.1-180F.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03254207 CN2632920Y (en) | 2003-05-29 | 2003-05-29 | Supar-capacitance intelligent control module zero maintenance DC screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03254207 CN2632920Y (en) | 2003-05-29 | 2003-05-29 | Supar-capacitance intelligent control module zero maintenance DC screen |
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| Publication Number | Publication Date |
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| CN2632920Y true CN2632920Y (en) | 2004-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 03254207 Expired - Fee Related CN2632920Y (en) | 2003-05-29 | 2003-05-29 | Supar-capacitance intelligent control module zero maintenance DC screen |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208832A (en) * | 2011-06-03 | 2011-10-05 | 四川省电力公司广元电业局 | Two-section DC operating power system |
| CN104362689A (en) * | 2014-10-29 | 2015-02-18 | 中国石油化工股份有限公司 | Direct-current emergency power supply device with supercapacitor module |
| CN111884199A (en) * | 2020-08-03 | 2020-11-03 | 国网山东省电力公司寿光市供电公司 | Super capacitor direct current device |
-
2003
- 2003-05-29 CN CN 03254207 patent/CN2632920Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208832A (en) * | 2011-06-03 | 2011-10-05 | 四川省电力公司广元电业局 | Two-section DC operating power system |
| CN104362689A (en) * | 2014-10-29 | 2015-02-18 | 中国石油化工股份有限公司 | Direct-current emergency power supply device with supercapacitor module |
| CN111884199A (en) * | 2020-08-03 | 2020-11-03 | 国网山东省电力公司寿光市供电公司 | Super capacitor direct current device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |