CN202524106U - Storage battery discharging device capable of working in two modes - Google Patents
Storage battery discharging device capable of working in two modes Download PDFInfo
- Publication number
- CN202524106U CN202524106U CN2012200485672U CN201220048567U CN202524106U CN 202524106 U CN202524106 U CN 202524106U CN 2012200485672 U CN2012200485672 U CN 2012200485672U CN 201220048567 U CN201220048567 U CN 201220048567U CN 202524106 U CN202524106 U CN 202524106U
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- inverter bridge
- capacitor
- switching switch
- side inductance
- discharging device
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to a storage battery discharging device capable of working in two modes. The storage battery discharging device comprises a storage battery, a direct current circuit breaker, a direct current side inductor, a direct current side capacitor, an inverter bridge which consists of insulated gate bipolar transistors (IGBT), an inverter bridge side inductor, a power grid side inductor, an alternating current side capacitor, a first capacitor transfer switch, a second capacitor transfer switch, a power grid or a load, a voltage current detection link for controlling, a digital signal processing unit and a driving and protection circuit, wherein the a storage battery, the direct current circuit breaker, the direct current side inductor, the direct current side capacitor, the inverter bridge, the an inverter bridge side inductor, the power grid side inductor, the alternating current side capacitor, the first capacitor transfer switch, the second capacitor transfer switch, the power grid or the load, the voltage current detection link for controlling, the digital signal processing unit and the driving and protection circuit are connected in sequence. The storage battery discharging device can work in a voltage source mode and a current source mode and has excellent performance in the two modes.
Description
Affiliated technical field
The utility model belongs to the power electronic equipment field, relates to a kind of battery discharging device, is specifically related to a kind of battery discharging device that can under two kinds of patterns, work.
Background technology
Storage battery is widely used in electric power system, communications and transportation and the various portable type electronic product as a kind of reliable chemical energy source.Especially at important departments such as national defence, communication and finance, storage battery is one of critical component in the system as the back-up source of system.Therefore whether the actual capacity of storage battery is normally extremely important, must regularly do storage battery for this reason and discharge and recharge maintenance.
Traditional battery discharging device mainly contains two types, and one type is the energy consumption type, comprising directly using resistance element perhaps to use DC-AC voltage source type inverter circuit that the energy in the storage battery is discharged to load as discharge load; Second type is energy feedback type, uses DC-AC current source type inverter circuit that the energy in the storage battery is fed back in the electrical network.In the first kind charging method: like direct use resistance element, this is converted into heat fully with storage battery energy, and this method does not make full use of energy; If use DC-AC voltage source type inverter circuit to battery discharging, this can provide good AC power, can be with multiple load, can use energy in many ways, but can't energy be fed back to electrical network.Second type is used DC-AC current source type inverter circuit; Almost all feedbacks of energy when discharge; But when it is discharged as DC-AC voltage source type inverter circuit; Because there is the voltage landing in the net side inductance of DC-AC current source type inverter circuit, can't be as the AC power of excellent performance.
Summary of the invention
The utility model is to above-mentioned defective, purpose be to provide a kind of use the DC-AC inverter circuit can also can be as the discharge of excellent performance current source type as the excellent performance voltage-source type, the battery discharging device that can under above-mentioned two kinds of patterns, work.
For realizing above-mentioned purpose; The technical scheme that the utility model adopted is; The battery discharging device that can under two kinds of patterns, work; The inverter bridge, inverter bridge side inductance, grid side inductance, AC side electric capacity, capacitor switching switch one, capacitor switching switch two, the A.C. contactor that comprise successively the storage battery that links to each other, dc circuit breaker, DC side inductance, dc bus capacitor, form by insulated gate bipolar transistor (IGBT); Electric current and voltage detects link and links to each other with DC side inductance, dc bus capacitor, grid side inductance, AC side electric capacity respectively; The inverter bridge of being made up of insulated gate bipolar transistor (IGBT) links to each other with protective circuit with driving, and electric current and voltage detects link and links to each other with digital signal processing unit respectively with protective circuit with driving, and inverter bridge can be three phase inverter bridge or half-bridge converter.
Digital signal processing unit adopts the microprocessor of TIX and the programmable gate array control device of U.S. altera corp.
The utility model adopts storage battery to link to each other with dc bus capacitor with the DC side inductance; Connect the inverter bridge that IGBT forms; Inverter bridge output connects inverter bridge side inductance; Inverter bridge side inductance directly connects the grid side inductance, and AC side electric capacity utilizes capacitor switching switch one to link to each other with the grid side inductance with inverter bridge side inductance with capacitor switching switch two.Capacitor switching switch one has two kinds of compound modes with capacitor switching switch two: mode 1, capacitor switching switch one are closed and two disconnections of capacitor switching switch; Mode 2, capacitor switching switch one breaks off and capacitor switching switch two closes.Utilize these two kinds of compound modes of capacitor switching switch, the battery discharging device that realization can be worked under two kinds of patterns, that is: mode 1, the current source type electric discharge device of excellent performance and mode 2, the voltage-source type electric discharge device of excellent performance.This battery discharging device that can under two kinds of patterns, work has overcome simple use DC-AC voltage source type discharge circuit can't be fed back to electrical network with energy; Though also having overcome simple use DC-AC current source type discharge circuit can be as the current source of excellent performance; But because there is the voltage landing in net side inductance, and can not be as the shortcoming of well behaved DC-AC voltage source type voltage source.
Description of drawings
The battery discharging device that can under two kinds of patterns, work to the utility model below in conjunction with accompanying drawing and embodiment further specifies.
Fig. 1 is the structural representation of the battery discharging device that can under two kinds of patterns, work of the utility model.
1. storage batterys among the figure, 2. dc circuit breaker, 3. DC side inductance, 4. dc bus capacitor; 5. inverter bridge, 6. inverter bridge side inductance, 7. grid side inductance, 8. AC side electric capacity; 9. the capacitor switching switch one, 10. capacitor switching switch two, 11. three-phase ac contactors, and 12. electric current and voltages detect link; 13. digital signal processing unit, 14. drivings and protective circuit, 15. electrical networks or load.
Embodiment
The battery discharging device that can under two kinds of patterns, work to the utility model below in conjunction with accompanying drawing and embodiment is elaborated.
The battery discharging device that the utility model can be worked under two kinds of patterns; As shown in Figure 1; Comprise the DC side inductance 3, dc bus capacitor 4, inverter bridge 5, inverter bridge side inductance 6, grid side inductance 7, AC side electric capacity 8, capacitor switching switch 1, the capacitor switching switch 2 10 that link to each other successively, and the electric current and voltage that is used to control detects link 12, digital signal processing unit 13, driving and protective circuit 14.
Digital signal processing unit adopts the microprocessor of TIX and the programmable gate array control device of U.S. altera corp.
If capacitor switching switch one 9 closures and capacitor switching switch 2 10 break off in Fig. 1, inversion side inductance 6, grid side inductance 7 and AC side electric capacity 8 are formed a LCL (inductor-capacitor-inductance) filter.Inverter output end connects this LCL filter; The output of LCL filter inserts electrical network; This constitutes a DC-AC current source type discharge circuit; Combination detects link 12, digital processing element 13, Drive Protecting Circuit 14 in order to the electric current and voltage of control, can constitute the current source type electric discharge device of an excellent performance.
If capacitor switching switch 1 breaks off and capacitor switching switch 2 10 closures in Fig. 1, inversion side inductance 6, grid side inductance 7 and AC side electric capacity 8 are formed a LC (inductor-capacitor) filter.Inverter output end connects this LC filter; The output of LC filter connects load; This constitutes a DC-AC voltage source type discharge circuit; Combination detects link 12, digital processing element 13, Drive Protecting Circuit 14 in order to the electric current and voltage of control, can constitute the voltage-source type electric discharge device of an excellent performance.
The battery discharging device that the utility model can be worked under two kinds of patterns can obtain two kinds of circuit topologies through the control to capacitor switching switch 1 and capacitor switching switch 2 10, respectively corresponding two kinds of discharge circuits.Through these two kinds of discharge circuits; This battery discharging device that can under two kinds of patterns, work has overcome the shortcoming that energy consumption type electric discharge device can't be fed back to the energy of accumulators store electrical network, when having overcome energy feedback type battery discharging device simultaneously as the voltage-source type discharge power supply because voltage landing that the grid side inductance exists and can't be as the shortcoming of the voltage source of excellent performance.
Claims (3)
1. the battery discharging device that can under two kinds of patterns, work; It is characterized in that; The inverter bridge, inverter bridge side inductance, grid side inductance, AC side electric capacity, capacitor switching switch one, capacitor switching switch two, the A.C. contactor that comprise successively the storage battery that links to each other, dc circuit breaker, DC side inductance, dc bus capacitor, form by insulated gate bipolar transistor (IGBT); Electric current and voltage detects link and links to each other with DC side inductance, dc bus capacitor, grid side inductance, AC side electric capacity respectively; The inverter bridge of being made up of insulated gate bipolar transistor (IGBT) links to each other with protective circuit with driving; Electric current and voltage detects link and links to each other with digital signal processing unit respectively with protective circuit with driving, and inverter bridge can be three phase inverter bridge or half-bridge converter.
2. the battery discharging device that can under two kinds of patterns, work according to claim 1; It is characterized in that: the output of the inverter bridge of being made up of insulated gate bipolar transistor (IGBT) has inverter bridge side inductance, grid side inductance, AC side electric capacity, capacitor switching switch one, capacitor switching switch two; Through one closed and capacitor switching switch two disconnections of control capacitance fling-cut switch; Perhaps capacitor switching switch one breaks off and capacitor switching switch two closures, and inverter bridge side inductance, grid side inductance, AC side capacitance group are combined into LCL filter or LC filter.
3. the battery discharging device that can under two kinds of patterns, work according to claim 1 and 2 is characterized in that described digital processing element adopts the microprocessor of TIX and the programmable gate array control device of U.S. altera corp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200485672U CN202524106U (en) | 2012-02-15 | 2012-02-15 | Storage battery discharging device capable of working in two modes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200485672U CN202524106U (en) | 2012-02-15 | 2012-02-15 | Storage battery discharging device capable of working in two modes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202524106U true CN202524106U (en) | 2012-11-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200485672U Expired - Lifetime CN202524106U (en) | 2012-02-15 | 2012-02-15 | Storage battery discharging device capable of working in two modes |
Country Status (1)
| Country | Link |
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| CN (1) | CN202524106U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102593895A (en) * | 2012-02-15 | 2012-07-18 | 武汉华海通用电气有限公司 | Storage battery discharging device capable of working in two modes |
| CN111722132A (en) * | 2020-06-11 | 2020-09-29 | 国网浙江省电力有限公司温州供电公司 | Interactive terminal of storage battery feedback system |
-
2012
- 2012-02-15 CN CN2012200485672U patent/CN202524106U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102593895A (en) * | 2012-02-15 | 2012-07-18 | 武汉华海通用电气有限公司 | Storage battery discharging device capable of working in two modes |
| CN111722132A (en) * | 2020-06-11 | 2020-09-29 | 国网浙江省电力有限公司温州供电公司 | Interactive terminal of storage battery feedback system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 430000 Wuhan Wuhan Haitong Electric Appliance Co., Ltd., 10, three Ling Ling Road, East Lake New Technology Development Zone, Hubei, China Patentee after: Wuhan Huahai General Electric Co., Ltd. Address before: 430074 Wuhan Wuhan Haitong Electric Appliance Co., Ltd., No. 8, fortune two, East Industrial Park, East Lake New Technology Development Zone, Hubei, China Patentee before: Wuhan Huahai General Electric Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121107 |