CN202276184U - Large-scale charge and discharge combination chopper constant voltage ongoing direct-current power supply device - Google Patents
Large-scale charge and discharge combination chopper constant voltage ongoing direct-current power supply device Download PDFInfo
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- CN202276184U CN202276184U CN2011203611013U CN201120361101U CN202276184U CN 202276184 U CN202276184 U CN 202276184U CN 2011203611013 U CN2011203611013 U CN 2011203611013U CN 201120361101 U CN201120361101 U CN 201120361101U CN 202276184 U CN202276184 U CN 202276184U
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- buck
- voltage
- power supply
- circuit
- boost
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- 238000007599 discharging Methods 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 238000004146 energy storage Methods 0.000 description 8
- 230000002459 sustained effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000002441 reversible effect Effects 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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Abstract
Provided is a large-scale charge and discharge combination chopper constant voltage ongoing direct-current power supply device. A BUCK voltage reduction chopper circuit is connected between the input end of a power supply line and a direct current bus power supply coupling end. The input end connected with a power supply line is connected with a storage battery charge and discharge voltage-regulating circuit in parallel. The storage battery charge and discharge voltage-regulating circuit is a BUCK model/BOOST type voltage reduction/boost chopper circuit. The other port of the BUCK model/BOOST type voltage reduction/boost chopper circuit is connected with a storage battery set. When the power supply of the power supply line is interrupted, the output voltage of the storage battery set can provide the direct current bus with a constant working supply voltage and ensure the power supply quality and reliability no matter the output voltage of the storage battery set is higher or lower than the voltage value required by the direct current bus.
Description
Technical field
The utility model relates to the large-sized DC uninterrupted power supply(ups) that adopts chopper, also relate to the stabilized voltage supply device of Large UPS intermediate dc link.
Background technology
In power plant, the electric substation DC UPS device must be set, claim direct current cabinet again, also comprise the stabilized voltage supply device of the intermediate dc link of Large UPS, externally during power failure, rely on batteries to discharge to be maintained DC bus powered.Accumulator cell charging and discharging partly is the core that discharges and recharges, provides for dc bus stable DC power supply in the DC UPS device for batteries.Discharging and recharging part can be realized by the multiple technologies means, and adopting wave chopping technology is wherein a kind of.When meeting externally fed system power failure; If accumulator battery voltage is when being higher than the desired output voltage value; Can output voltage values be stabilized in the desired range of voltage values of dc bus by the step-down of buck chopper device or buck diode heap, but when if accumulator battery voltage is lower than desired d-c bus voltage value; Or along with the prolongation of batteries discharge power-on time; When batteries was the situation aggravation of DC bus powered deficiency, the power supply index influenced the stability of power supply and the reliability of work worse and worse.
Summary of the invention
The purpose of the utility model can provide the large-scale uninterrupted continuous-current plant of combination copped wave constant voltage that discharges and recharges of a constant supply power voltage value when being a kind of need are provided by standby battery output power supply.The large-scale uninterrupted continuous-current plant technical scheme of combination copped wave constant voltage that discharges and recharges that the utility model provides; Its major technique content is: a kind of large-scale uninterrupted continuous-current plant of combination copped wave constant voltage that discharges and recharges; Be connected with the BUCK buck circuit between the input of connection supply line and the DC bus powered link; The input of supply line is parallel with the accumulator cell charging and discharging regulating circuit; Described accumulator cell charging and discharging regulating circuit is BUCK type/BOOST type buck/boost chopper circuit, and the another port of BUCK type/BOOST type buck/boost chopper circuit is connected with batteries.
The large-scale uninterrupted continuous-current plant of combination copped wave constant voltage that discharges and recharges that the utility model provides; When supply line supplies to be interruption; No matter the output voltage of batteries is to be higher than or to be lower than dc bus required voltage value; Can both guarantee the stability and the reliability of power supply for dc bus provides a constant work supply power voltage, improve power supply quality.
Description of drawings
Fig. 1 and Fig. 2 are respectively a large-scale total figure of circuit theory and a schematic block circuit diagram that discharges and recharges the uninterrupted continuous-current plant of combination copped wave constant voltage.
Embodiment
This large-scale uninterrupted continuous-current plant of combination copped wave constant voltage that discharges and recharges; Be connected with BUCK buck circuit DC1 between the input+U of its connection supply line and the DC bus powered link+V1; This BUCK buck circuit is by copped wave pipe VT1, recovers the typical buck circuit that sustained diode 1, energy storage inductor L1 and filter capacitor C1 connect and compose soon; Input+the U that connects supply line is parallel with the accumulator cell charging and discharging regulating circuit; Described accumulator cell charging and discharging regulating circuit is BUCK/BOOST buck/boost chopper circuit DC2; The another port of this BUCK/BOOST buck/boost chopper circuit DC2+V2 connects batteries BAT; An end that is connected with supply line is the input of supply line's circuit positive flow to the buck circuit of batteries, also is to have no progeny in the supply line, and the battery current reverse flow is to the output of the boost chopper of straight line generatrix direction.BUCK/BOOST buck/boost chopper circuit can adopt the Current Reversible Chopper like the accompanying drawing structure; Fast recovery sustained diode 2, D3 and energy storage inductor L2 and filter capacitor C2 that it is parallel to two copped wave pipes by two copped wave pipe VT2, VT3, respectively connect and compose; Copped wave pipe VT2 wherein, recover sustained diode 3, energy storage inductor L2 and filter circuit C2 soon and constitute BUCK type buck circuit, copped wave pipe VT3, recover sustained diode 2, energy storage inductor L2 and filter circuit C2 soon and constituted the BOOST boost chopper.Described copped wave pipe or work in comparatively typical PWM state, or work in the frequency modulation and voltage modulation operating state.BUCK type buck circuit DC1 and BUCK/BOOST buck/boost chopper circuit DC2 itself are classical switching power circuit, and the selection of its components and parts, calculating all can be carried out according to conventional method.
The work implementation procedure of the utility model is:
During externally fed circuit normal power supply; Input voltage+the U of supply line is higher than dc bus required voltage value; The control circuit of the copped wave control end of the chopper VT1 of BUCK buck circuit DC1 produces required pulse-width signal; Supply power voltage is reduced dc bus required voltage value, the stable power-supplying work of being stabilized in; When if control circuit detects supply power voltage+U and is higher than batteries BAT voltage; BUCK/BOOST buck/boost chopper circuit DC2 then works in decompression mode; The control circuit of the copped wave control end of copped wave pipe VT2 produces the required wide modulation signal of fat; Control end at copped wave pipe VT3 produces the cut-off signals that copped wave pipe VT3 is ended simultaneously, and the accumulator cell charging and discharging regulating circuit works in the BUCK decompression mode, supply power voltage+U is reduced to hold fill batteries.In externally fed, have no progeny, need to make stand-by power supply, when working power being provided for dc bus by batteries BAT; When accumulator battery voltage be greater than or equal to dc bus required voltage value and L2, D2, L1, VT1 conduction voltage drop and the time; Copped wave pipe VT2, VT3 are all ended, and BUCK/BOOST buck/boost chopper circuit DC2 does not work, and accumulator battery voltage is through energy storage inductor L2, diode D2; DC1 provides input voltage for buck circuit; The control circuit of the copped wave control end of chopper VT1 produces required pulse-width signal, supply power voltage is reduced being stabilized in dc bus required voltage value, stablizes uninterrupted power supply work; When accumulator battery voltage be lower than dc bus required voltage value and energy storage inductor L2, diode D2, energy storage inductor L1, copped wave pipe VT1 conduction voltage drop and the time; The permanent Continuity signal of the copped wave control end reception control circuit of chopper VT1; BUCK buck circuit DC1 works in permanent conducting state; This moment, output voltage+V1 and input terminal voltage+U only differed the pressure drop of VT1 saturation conduction, energy storage inductor L1 conduction voltage drop, general 2～3V only, the required pulse-width signal of control circuit generation of the control end of copped wave pipe VT3; Forbid copped wave pipe VT2 work at the control end generation cut-off signals of copped wave pipe VT2 simultaneously; BUCK/BOOST buck/boost chopper circuit DC2 works in reverse BOOST boost mode, and accumulator battery voltage is raise, and voltage stabilizing is DC bus powered in dc bus required voltage value.Control circuit CTRL is as the part of chopper circuit; Constantly detect input terminal voltage+U, DC bus-bar voltage+V1 and batteries circuit+V2; Produce the control logic of required pulse-width signal, cut-off signals, permanent Continuity signal and each thyristor sequence of movement and combination of actions of each copped wave pipe of meeting above-mentioned requirements by the above-mentioned course of work according to the various situation of each magnitude of voltage; It just can directly organize structure by available circuit or cpu chip etc., so at this chopper control section is repeated no more.
Claims (1)
1. one kind large-scale discharges and recharges the uninterrupted continuous-current plant of combination copped wave constant voltage; It is characterized in that connecting between input and the DC bus powered link of supply line and be connected with BUCK buck circuit (DC1); The input of supply line is parallel with the accumulator cell charging and discharging regulating circuit; Described accumulator cell charging and discharging regulating circuit is BUCK type/BOOST type buck/boost chopper circuit (DC2), and the another port of BUCK type/BOOST type buck/boost chopper circuit is connected with batteries (BAT).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203611013U CN202276184U (en) | 2011-09-23 | 2011-09-23 | Large-scale charge and discharge combination chopper constant voltage ongoing direct-current power supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203611013U CN202276184U (en) | 2011-09-23 | 2011-09-23 | Large-scale charge and discharge combination chopper constant voltage ongoing direct-current power supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202276184U true CN202276184U (en) | 2012-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203611013U Expired - Fee Related CN202276184U (en) | 2011-09-23 | 2011-09-23 | Large-scale charge and discharge combination chopper constant voltage ongoing direct-current power supply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202276184U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102868209A (en) * | 2012-09-14 | 2013-01-09 | 北京万协通信息技术有限公司 | Dual-power structure of NFC-SD security card and SD security chip |
| CN103973114A (en) * | 2014-05-06 | 2014-08-06 | 中国电子科技集团公司第四十一研究所 | Constant power control direct-current power supply |
| CN105680693A (en) * | 2016-03-31 | 2016-06-15 | 昆明理工大学 | Bi-directional DC-DC device with buck-boost function |
| CN109217450A (en) * | 2017-07-04 | 2019-01-15 | 康舒科技股份有限公司 | Redundant power supply system capable of prolonging maintenance time after power failure |
-
2011
- 2011-09-23 CN CN2011203611013U patent/CN202276184U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102868209A (en) * | 2012-09-14 | 2013-01-09 | 北京万协通信息技术有限公司 | Dual-power structure of NFC-SD security card and SD security chip |
| CN102868209B (en) * | 2012-09-14 | 2014-07-16 | 北京万协通信息技术有限公司 | Dual-power structure of NFC-SD security card and SD security chip |
| CN103973114A (en) * | 2014-05-06 | 2014-08-06 | 中国电子科技集团公司第四十一研究所 | Constant power control direct-current power supply |
| CN105680693A (en) * | 2016-03-31 | 2016-06-15 | 昆明理工大学 | Bi-directional DC-DC device with buck-boost function |
| CN105680693B (en) * | 2016-03-31 | 2019-06-11 | 昆明理工大学 | A bidirectional DC-DC device with buck-boost function |
| CN109217450A (en) * | 2017-07-04 | 2019-01-15 | 康舒科技股份有限公司 | Redundant power supply system capable of prolonging maintenance time after power failure |
| CN109217450B (en) * | 2017-07-04 | 2020-11-03 | 康舒科技股份有限公司 | Redundant power supply system capable of prolonging maintenance time after power failure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20120613 Termination date: 20160923 |
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| CF01 | Termination of patent right due to non-payment of annual fee |