CN2605690Y - Lossless wide-voltage-regulating pulse floating-charging accumulator complete direct current screen - Google Patents
Lossless wide-voltage-regulating pulse floating-charging accumulator complete direct current screen Download PDFInfo
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- CN2605690Y CN2605690Y CNU032153457U CN03215345U CN2605690Y CN 2605690 Y CN2605690 Y CN 2605690Y CN U032153457 U CNU032153457 U CN U032153457U CN 03215345 U CN03215345 U CN 03215345U CN 2605690 Y CN2605690 Y CN 2605690Y
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Abstract
Disclosed is a highly-efficient pulse float-charging DC cabinet with average capacity and a lossless wide-voltage-adjusting range, which is used in an electric power system. The utility model comprises a DC closing bus bar, a DC control bus bar, a charging and discharging bus bar and a common M-bus-bar. The utility model is provided with a float-charger for outputting two voltages of pure DC and pulse DC, a charger with float-charging and charging two purposes for outputting the two voltages and an accumulator battery which comprises two batteries and a pig tail in between. The pure DC output by the float-charger is connected into the control bus bar and the closing bus bar. The pulse DC is connected into the accumulator battery for pulse float-charging. A lossless wide-voltage-adjusting-range anti-circumfluence device which is composed of seven diodes is arranged among the two DC bus bars and the two batteries and the chargers, ensuring the two batteries not to carry any circumfluence in any condition and realizing lossless wide voltage adjusting, thereby the DC bus bars are guaranteed without lost voltage, lacked voltage and over voltage, and the requirement of highly reliable power supply by the power system can be met when accidents occurs in the system. Each battery is provided with a voltage balancer, therefore the lossless average capacity wide voltage adjusting and highly-efficient pulse float-charging can be achieved, the capacity retention value and the service life of the accumulator battery can be improved.
Description
The application belongs to the direct current cabinet that electric power system is used, and is applicable to the complete direct current cabinets of all kinds of storage batterys such as lead is exempted from, cadmium nickel.
With the immediate prior art of the application be the ZL99221860.8 utility model patent " no circulation is also transported the complete direct current cabinet of lead-free battery " of the application designer design.Before patent circuit structure as shown in Figure 1, it is to be provided with two dc bus 1M+, 2M+ in the direct current cabinet circuit, floating charge bus FM and one discharge and recharge bus CFM.No. 1 charger connects the floating charge bus by switch, No. 2 charger is connected to the floating charge bus respectively and discharges and recharges bus by bidirectional switch, be connected to the cathode terminal of two groups of each automatic Regulation silicon chains that are composed in series by 50 diodes respectively at two dc bus one ends of 1M+, 2M+, two group storage batteries are connected to anti-circulating device respectively by on-off switch and 2. 4. hold and discharge and recharge bus.Should be provided with three groups of anti-circulation channels by anti-circulating device, form by two diodes for every group.Wherein one group of negative electrode and connect after be connected to the anode that two groups of pressure regulation silicon connect respectively, its anode connects two group storage batteries respectively, this is discharge of two group storage battery accidents and the shared anti-circulation channel of floating charge instantaneous discharge.Two groups of anodes are connected to the floating charge bus, and negative electrode is connected to two group storage batteries respectively, and this is the special-purpose anti-circulation channel of floating current.Three group of two negative electrode connects storage battery respectively, and two anode parallel connections connect through switch and discharge and recharge bus, and this is the anti-circulation channel of bulk charge that adopts under individual cases.The floating charge bus also has one the tunnel to be connected to the anode tap of two pressure regulation silicon chains through diode, and this is a dc load passage often.This patented technology has realized that two group storage batteries do not have the circulation parallel running, eliminated the major hidden danger of circulation, solved the reliability and the very low problem of life-span of single current DC screen, than the reliability height of the full capacity single supply direct current cabinet of two groups and usefulness, and cost reduces half.Full-automatic, high power capacity retention value, high life have been realized, wide-voltage-regulation technical indicator, high-quality voltage in the time of satisfying electric power system alternating current and have a power failure, the demand of the DC power supply of high reliability.But its deficiency is arranged also.When especially adopting in high-power station, during floating charge often when dc load and accident the accident dc load all very big, up to tens of peaces to hundreds of peaces.And all will connect by pressure regulation silicon, strengthened the capacity that pressure regulation silicon connects, increased the electric energy loss that pressure regulation silicon connects, also increased the cost and the operating cost of direct current cabinet greatly, return to install and make troubles.In addition, because the restriction of circuit theory can't realize the floating charge of efficiently pulsing, limited the further raising in battery capacity retention value and life-span.
The application's purpose:
For solving the deficiency of technique scheme, a kind of new technical scheme is proposed, being implemented in two group storage batteries does not have under the condition of circulation parallel running, and the energy range of regulation is wide, reduces the pressure regulation loss, reduces equipment cost and operating cost; Realization further improves capacity retention value and the useful life and the reliability of storage battery to the floating charge of efficiently pulsing of all appearances of storage battery.
The application's technical scheme:
Technical scheme such as Fig. 2, shown in Figure 3, Fig. 2 are that the direct current cabinet with the 220V system is the line map of example, and Fig. 3 is a voltage equalizer among Fig. 2, the circuit diagram of JYJ.Among Fig. 2, comprise two dc buss, promptly a closing bus bar HM controls bus KM for one; Closing bus bar HM connects the load that closes a floodgate, emergency lighting load, DC start oil pump n
2, control bus KM connects signal load, control load n
1Article one, discharge and recharge bus CFM, a shared negative busbar M-, two group storage battery group 1XDC and 2XDC, two cover charger 1CDJ and 2CDJ.
Scheme also comprises:
1, the anti-circulating device WTF of harmless automatic wide-voltage-regulation is set.This device has 7 diode D
1～D
7Form 4 passages, wherein D
1, D
2Form the anti-circulation channel of two group storage battery accidents discharge, D
3, D
4Form two groups of electric power storage group B section main batterys during floating charge 0.1 second to the anti-circulation channel of several seconds instantaneous discharge, D
5, D
6Form the anti-circulation channel of two group storage batteries floating charge often.(above-mentioned three passages have guaranteed the parallel running and do not have circulation under various operating states of two group storage batteries.) other D
7Be the passage of normal work period control bus KM to closing bus bar HM power supply.(because of often loading, closing bus bar HM approaches zero, so the voltage of two buses is near equating.)
2, two group storage battery 1XDC and 2XDC are respectively two sections n of A, B
a, n
b, have a tap between two sections of A, the B.The positive pole one tunnel of batteries 1XDC and 2XDC engages lock bus HM by diode D1 among pressure regulation contactor 11C, the anti-circulating device WTF and D2 respectively; Another road connects and discharges and recharges bus CFM by upper slitter " charging is lived and the put " current potential 1 of double-pole dibit power condition switch 1K and 3K respectively.
The tap of batteries 1XDC and 2XDC respectively among the position 4 of the following cutter " floating charge discharge " by double-pole dibit power condition switch 1K and 3K and the WTF diode D3 is connected with D4 and controls bus KM.
3, the characteristics of 1CDJ and 2CDJ are to export two kinds of voltages respectively.
Charger 1CDJ is the floating machine of the high frequency switch power formula of high power and low power module GM, DM combination, exports pure direct current of 230V and 24V pulsating dc voltage simultaneously by high power module GM and low power module DM; The pure dc voltage output end 7 of 230V is connected control bus KM through switch 5K with diode D8; The pulsating direct current of output 254V after 24V pulsating dc voltage and the addition of 230V voltage, output 5 is prevented circulation channel diode D through switch 5K by the WTF floating charge
5, D
6Be connected two batteries " just " utmost point respectively with the upper slitter " floating charge " of power condition switch 1K, 3K position 2, separately to the battery pack floating charge of pulsing.
In this programme, the n+1 design routinely of high power module, n represents the number of modules that just in time satisfies normal duty and floating current requirement, and the 1st, represent Hot Spare spare module number.Press the 7+1 design in this example, totally 8 high power modules.Low power module is pressed the 1+1 design, i.e. module work, and a module Hot Spare is standby, when a module failure, another module normal operation input.When two high power modules broke down simultaneously, floating charge one charge dual-purpose machine 2CDJ came into operation automatically.
Charger 2CDJ is floating charge one a charge dual-purpose machine, the pure direct current of output 230V and the pulsating direct current (pressure limiting constant current) of 280V.The pure direct current of 230V its output point 5 of stand-by power supply during as the 1CDJ fault is through diode D
9With contactor 4C access control bus KM; Another road is inserted through contactor 3C and is discharged and recharged bus CFM, when power condition switch 1K or 3K put " charging is lived and put " position 1, and contactor 2C junction closure, the pulsating direct current of 280V is to battery charging.
4, " bearing " utmost point of 1CDJ, 2CDJ, 1XDC, 2XDC meets common negative busbar M-through separately switch respectively and forms the loop.
5, between female HM of closing line and control bus KM, be connected with the diode of the passage often D7 that HM powers to HM to pressure regulation contactor 12C, accident regulating resistor Rt and the KM of KM power supply.
6, the positive and negative electrode of two group storage battery groups and tap are connected to voltage equalizer 1JYJ and 2JYJ respectively.The voltage equalizer circuit as shown in Figure 3, it is by triode G and biasing resistor R
1, R
2And current-limiting resistance R
3Form.R
1, R
2Be connected to respectively the battery pack both positive and negative polarity and and triode G base stage connection, the triode emitter-base bandgap grading meets the intersegmental tap of battery pack A, B two, R
3Be connected to collector electrode and the battery pack A section positive pole of triode G.
In order fully to understand the technical program, its operation principle is described below: when power condition switch 1K or 3K put " floating charge " position 2, and the D of the anti-circulation channel of floating charge often then
5, D
6Open-minded, to the floating charge of pulsing of two group storage batteries, instantaneous floating charge discharge channel D simultaneously
3, D
4Open-minded, make two batteries B section n
bBus KM connects with control, for B section instantaneous discharge and reserve discharge provide path.When power condition switch 1K or 3K put " charging is lived and put " position 1, then this Battery pack was connected with discharging and recharging bus CFM, carried out various chargings and activation discharge.In floating charge or when charging, though battery voltage is higher than bus HM and KM, because the following cutter of pressure regulation contactor 11C and power condition switch disconnects, so can not cause KM, HM overvoltage.11C voltage adds the HM bus from falling about 5% back when running into the interchange power outage, and through having connected the KM bus after Rt, the pressure regulation of 12C contact, assurance accident interdischarge interval is controlled bus KM and the automatic wide-voltage-regulation quality supply of closing bus bar HM.
Diode D among the WTF
7Effect be when normal floating charge, to guarantee that control bus KM powers to lock bus HM.
Adopted by " height " of high and low pressure module combinations frequently behind the floating machine of switch power supply type, by the pure direct current direct-furnish control of high power module GM output 230V bus KM, the 24V pulsating direct current of low power module DM output again with the pure direct current addition of 230V of high power module GM output after the 254V pulsating direct current, the D in anti-circulating device WTF
5, D
6To the two group storage batteries floating charge of pulsing.
Such scheme has eliminated thoroughly that pressure regulation silicon connects and the loss in pressure regulation silicon connects of often loading, and has realized harmless wide-voltage-regulation and pulsation floating charge, has improved storage battery floating charge and DC bus powered reliability simultaneously.
Battery component A, B are two sections in scheme, and two sections function is: the A section is the pressure regulation section, the battery number of elements is by after satisfying accident discharge in a hour, and DC bus-bar voltage drops to and is not less than 95% and chooses.The B section is a main paragraph, the battery number of elements during by normal floating charge B section voltage equal to control the bus operating voltage and choose.The B section is born instantaneous power supply task.Because of voltage after the instantaneous discharge might descend, in order to make the equilibrium of single cell voltage capacity during floating charge at the same time of two sections battery pack, two Battery packs all are provided with voltage equalizer 1JYJ and 2JYJ.Its circuit as shown in Figure 3.Just often the voltage of each monocell is identical in the batteries, base stage and the emitter of corresponding G equate with the KM busbar voltage, not conducting of triode G, after B section voltage instantaneous discharge descended, triode G conducting was to the boost charge of B section, voltage rises to and penetrates level, when base voltage equates, then stop the boost charge to the B section automatically, guaranteed the equilibrium of single cell voltage capacity in the whole Battery pack, should " all hold " is the capacity retention value of battery in this programme and the most important measure that improves useful life.
The application's good effect:
1, the float charge voltage of batteries is high nearlyer 11% than dc bus working voltage, has enough pressure regulation abilities.Battery pack has a tap voltage to equate with DC bus-bar voltage, communicates with dc bus through anti-circulating device, makes dc bus have the reserve power supply that voltage equates.Adopt the high frequency switch power of two kinds of module combinations again because of floating machine, export pure direct voltage direct-furnish control bus and combined floodgate dc bus, the output ripple direct current is to the storage battery floating charge, this has just eliminated the pressure regulation silicon chain and the loss in the silicon chain of often loading thereof expensive between storage battery and dc bus, reduce cost, reduce operating cost, realized harmless wide-voltage-regulation and efficient pulsation floating charge; Charger high efficiency, low noise, high voltage stability have also been realized simultaneously.
2, because the anti-circulating device of the WTF that adopts 7 diodes to form has floating charge, the floating charge discharge, the accident discharge, three anti-circulation channels have been realized under the preceding topic of harmless wide-voltage-regulation, two group storage batteries can both not have circulation and fortune in various running statuses, thoroughly eliminate the harm of circulation.
3, normally in service, the tap of two group storage batteries provides reliable instantaneous power supply and reserve power supply to dc bus, has protected the floating machine overload, has improved DC bus powered reliability greatly.This programme also adopts two JYJ voltage equalizers can carry out the voltage capacity equilibrium timely automatically, having solved for many years the direct current cabinet of magnetic tape trailer battery wants to solve and the insurmountable very low key problem of the life of storage battery that causes, improve battery capacity retention value and useful life, realized all holding harmless wide-voltage-regulation.
4, the low power module of floating machine output ripple direct current is pressed the 1+1 design, i.e. work, and a Hot Spare is standby, and each piece can both be born the whole floating charge loads of storage battery.Therefore not only solved and to have solved efficient pulsation floating charge for a long time, but also solved highly reliable pulsation float charger, the capacity retention value and the life-span of storage battery are further improved.
DC bus powered very reliable when 5, normally moving.It has suitable 4 normal power supply power supplys, just often is 7 module for power supply of 1CDJ, and a module Hot Spare is standby.So when a module failure, another module drops into automatically, this is equivalent to the automatic input of first power supply.When the 1CDJ fault, 2CDJ drops into automatically, and this is equivalent to the automatic input of second power supply, as 1CDJ, 2CDJ simultaneous faults or exchange and have a power failure, two batteries B sections drop into power supply automatically, and this is equivalent to the 3rd, fourth power, so the reliability height of power supply, power supply quality is good.
6, accident power supply reliability height, quality of voltage is excellent
Exchange first wink of dead electricity, two group storage battery B section D in WTF are arranged
3, D
4To the KM bussed supply, and again through D
7Make various loads in time obtain power supply to the HM bussed supply.Exchange about 0.5～1 second battery tension of dead electricity and descended contactor 11C closure, the total head of two group storage batteries D in WTF at nearly 5% o'clock
1, D
2To the HM power supply, power to KM through regulating resistor Rt step-down 5% again, through several minutes, 12C closure when battery tension drops near the normal working voltage of dc bus, KM, HM voltage equate.Because the number of elements of storage battery is many, the float charge voltage height, in the latter stage of accident discharge in a hour, DC bus-bar voltage drops to and is not less than 95%, thereby guaranteed that two dc buss high-quality during exchanging the dead electricity accident in a hour reliably powers, realized all holding harmless wide-voltage-regulation, 11C, 12C automatic disconnection restore to the original state when alternating current recovers.
7, when power condition switch 1K or 3K put charge position, single group storage battery can carry out initial charge, and bulk charge replenishes electricity, activation charging or activation discharge.Because the effect of power condition switch 1K, 3K and contactor 11C, 12C, dc bus neither produces overvoltage in all cases, does not also produce decompression and under-voltage, has realized high-quality reliable power supply.
Below to being that the design parameter of example is described as follows with 220V system direct current cabinet:
1, in the two group storage battery groups every group press 1000AH design, 11 on A section pressure regulation section battery, voltage 2.23 * 11=14V, 103 on B section main paragraph battery, voltage 2.23 * 103=230V, 114 of every Battery packs.
2, the high power module of floating machine 1CDJ is selected 10A-DC230V/380V for use, and totally 8,7 work, 1 Hot Spare.
3, triode G selects 100mA/60V comprehensive silicon triode for use among the voltage equalizer JYJ, and direct current multiplication factor β=2000 are by equal capacitance current 50-80mA design, R
1=12K Ω/0.25W, R
2=115K Ω/1W, R
3=270 Ω/3W.The resistance of the also available 470 Ω/3W of this voltage equalizer replaces, and inserts battery pack A section n
aTwo ends get final product.
Claims (1)
1. harmless wide-voltage-regulation pulse floating-charging accumulator direct current cabinet, it comprises a closing bus bar HM, closing bus bar HM connects the load that closes a floodgate, emergency lighting load, DC start oil pump; Article one, control bus KM controls bus KM and connects signal load, the control load; Article one, discharge and recharge bus CFM, a shared negative busbar " M-"; Two group storage battery group 1XDC and 2XDC; Two cover charger 1CDJ and 2CDJ;
It is characterized in that also comprising in the scheme:
(1), the anti-circulating device WTF of harmless automatic wide-voltage-regulation is set, this device has 7 diode D
1～D
7Form 4 passages; D wherein
1, D
2Form the anti-circulation channel of two group storage battery accidents discharge, D
3, D
4Form the anti-circulation channel of two groups of electric power storage group B section main batterys instantaneous discharge during floating charge, D
5, D
6Form the anti-circulation channel of two group storage batteries floating charge often; D7 forms the passage of normal work period control bus KM to closing bus bar HM power supply in addition;
(2), two group storage battery group 1XDC and 2XDC be respectively two sections of A, B, respectively has a tap between two sections of A, the B; The positive pole one tunnel of batteries is respectively by pressure regulation contactor 11C, diode D
1And D
2Connect closing bus bar HM; Another road upper slitter by double-pole dibit power condition switch 1K and 3K " charging is lived and put " position respectively is connected and discharges and recharges bus CFM;
Following cutter " floating charge discharge " position, the diode D of double-pole dibit power condition switch 1K and 3K passed through in the tap of batteries 1XDC and 2XDC respectively
3And D
4Connect control bus KM;
(3), charger 1CDJ is the floating machine of the high frequency switch power formula of high and low pressure module combinations, the pure direct voltage of control bus is satisfied in the output of high power module, its output 7 is connected with diode D8 through switch 5K controls bus KM; The pulsating direct current to battery charging is satisfied in output after high power module and the low power module addition, and its output 5 is by diode D
5, D
6Be connected two batteries " just " utmost point respectively with upper slitter " floating charge " position of power condition switch 1K, 3K;
Charger 2CDJ is the dual-purpose machine of floating charge, the one, and the pure direct current of control busbar voltage is satisfied in output, and its output point 5 is through diode D9 and contactor 4C access control bus KM; The 2nd, the pulsating direct current that charging voltage value is satisfied in output inserts through contactor 3C and discharges and recharges bus CFM, and when power condition switch 1K or 3K put " charging ", contactor 2C junction closure was to battery charging;
(4), " bearing " utmost point of 1CDJ, 2CDJ, 1XDC, 2XDC inserts common negative busbar M-through separately switch respectively and forms the loop:
(5) between female HM of closing line and control bus KM, be connected with HM and meet true device 12C, the cloudy Rt of accident pressure regulation electricity to the pressure regulation of KM power supply;
(6), the positive and negative electrode of two group storage battery groups and tap are connected to voltage equalizer 1JYJ and 2JYJ respectively; Voltage equalizer is by triode G and biasing resistor R
1, R
2And current-limiting resistance R
3Form; R
1, R
2Be connected to respectively the battery pack both positive and negative polarity and and triode G base stage connection, the triode emitter-base bandgap grading meets the intersegmental tap of battery pack A, B two, R
3Be connected to triode G collector electrode and battery pack A section positive pole; Voltage equalizer or insert battery pack A section n with resistance
aTwo ends substitute.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031119077A CN100367626C (en) | 2003-02-26 | 2003-02-26 | Lossless wide voltage regulating ripple floating charge storage cell complete dc screen |
| CNU032153457U CN2605690Y (en) | 2003-02-26 | 2003-02-26 | Lossless wide-voltage-regulating pulse floating-charging accumulator complete direct current screen |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031119077A CN100367626C (en) | 2003-02-26 | 2003-02-26 | Lossless wide voltage regulating ripple floating charge storage cell complete dc screen |
| CNU032153457U CN2605690Y (en) | 2003-02-26 | 2003-02-26 | Lossless wide-voltage-regulating pulse floating-charging accumulator complete direct current screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2605690Y true CN2605690Y (en) | 2004-03-03 |
Family
ID=69375187
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU032153457U Expired - Fee Related CN2605690Y (en) | 2003-02-26 | 2003-02-26 | Lossless wide-voltage-regulating pulse floating-charging accumulator complete direct current screen |
| CNB031119077A Expired - Fee Related CN100367626C (en) | 2003-02-26 | 2003-02-26 | Lossless wide voltage regulating ripple floating charge storage cell complete dc screen |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031119077A Expired - Fee Related CN100367626C (en) | 2003-02-26 | 2003-02-26 | Lossless wide voltage regulating ripple floating charge storage cell complete dc screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN2605690Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100367626C (en) * | 2003-02-26 | 2008-02-06 | 孙海裕 | Lossless wide voltage regulating ripple floating charge storage cell complete dc screen |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102074986A (en) * | 2010-12-29 | 2011-05-25 | 河北创科电子科技有限公司 | Electric power single-group storage battery DC system and storage battery discharging method |
| 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 |
| CN112421762B (en) * | 2020-11-28 | 2022-07-29 | 国家电网有限公司 | Storage battery redundancy control system of electric power low-voltage direct-current system |
| CN114884167B (en) * | 2022-05-13 | 2023-06-02 | 国网湖北省电力有限公司宜昌供电公司 | Transformer substation direct-current control system based on lithium iron phosphate storage battery |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1139366A (en) * | 1980-05-30 | 1983-01-11 | Jay E. Beattie | Direct current power supply |
| CN2384358Y (en) * | 1999-08-03 | 2000-06-21 | 山东矿业学院 | Non-loop parallel lead-free battery complete dc screen |
| CN2605690Y (en) * | 2003-02-26 | 2004-03-03 | 孙海裕 | Lossless wide-voltage-regulating pulse floating-charging accumulator complete direct current screen |
-
2003
- 2003-02-26 CN CNU032153457U patent/CN2605690Y/en not_active Expired - Fee Related
- 2003-02-26 CN CNB031119077A patent/CN100367626C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100367626C (en) * | 2003-02-26 | 2008-02-06 | 孙海裕 | Lossless wide voltage regulating ripple floating charge storage cell complete dc screen |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100367626C (en) | 2008-02-06 |
| CN1525618A (en) | 2004-09-01 |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |