CN103023135A - Multi-level direct current transformation power supply device - Google Patents
Multi-level direct current transformation power supply device Download PDFInfo
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- CN103023135A CN103023135A CN2011102891308A CN201110289130A CN103023135A CN 103023135 A CN103023135 A CN 103023135A CN 2011102891308 A CN2011102891308 A CN 2011102891308A CN 201110289130 A CN201110289130 A CN 201110289130A CN 103023135 A CN103023135 A CN 103023135A
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- voltage
- power supply
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- direct current
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/10—Parallel operation of dc sources
- H02J1/108—Parallel operation of dc sources using diodes blocking reverse current flow
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Dc-Dc Converters (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
The invention relates to a multi-level direct current transformation power supply device. The multi-level direct current transformation power supply device is characterized by comprising a super capacitor, a circuit switching unit, a multi-level voltage converter unit and a voltage monitoring unit, wherein the total output of the super capacitor is connected with the multi-level voltage converter unit through the circuit switching unit, the multi-level voltage converter unit is connected with a load, the voltage monitoring unit is connected with the output end of the super capacitor and the circuit switching unit and is used for detecting the output voltage of the super capacitor and controlling the motion of the switching unit of a control circuit. The multi-level direct current transformation power supply device provided by the invention adopts a multi-level direct current transformation device, the input voltage can be input in the rang of 50-270 V at will, the stableness and non-interval output of voltage are realized, and stability and reliability are improved; and the multi-level direct current transformation power supply device meets power source requirements of intelligent transformer substations, especially power supply backup decay of a movement intelligent transformer substation, an intelligent on-off action and background monitoring; and the structure is simple, and the service life is long.
Description
Technical field
The present invention relates to a kind of AC/DC integrated supply unit, particularly a kind of multistage dc transformating power device.
Background technology
The AC/DC integrated power supply is generally adopted with power supply in the station of existing intelligent substation, the energy storage device of AC/DC integrated power supply all is to adopt maintenance-free lead accumulator, and its weak point is: one, need often storage battery to be carried out voltage, internal resistance monitoring for the reliability that guarantees to use; Two, storage battery only has the circulation charge and discharge life-span about 1000 times, is difficult to satisfy the demand of the power supplys such as intelligent switch, intelligent terminal in the current intelligent substation; When three, batteries is discharged under-voltage protection need to be set, mistake is put and damage otherwise storage battery is understood, so storage battery has the part electric energy not discharge; can not effectively utilize, and after long-time the use, storage battery has memory effect; capacity can descend, and the life-span can shorten.Four, the lead of storage battery pole plate processed easily loss attenuation in the charging and discharging process, the dress that turns of electric energy and chemical energy changes Efficiency Decreasing.Five, storage battery needs often to safeguard, carries out deep discharge, to guarantee the life-span of storage battery.Six, the acidic liquid volatilization affects environment, and discarded storage battery also can bring very large harm to environment.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of wide input voltage range is provided, stable output, reliable operation, principle is simple, and efficient is high, non-maintaining multistage dc transformating power device.
The object of the present invention is achieved like this: a kind of multistage dc transformating power device.It is characterized in that it is comprised of ultracapacitor, circuit switch unit, multilevel voltage converter unit, voltage monitoring unit, total output of ultracapacitor is connected with the multilevel voltage converter unit by the circuit switch unit, the multilevel voltage converter unit is connected with load, the voltage monitoring unit is connected with output and the circuit switch unit of ultracapacitor, in order to output voltage and the action of control circuit switch unit that detects ultracapacitor.
Described circuit switch unit is made of the D.C. contactor of parallel connection, and one of them D.C. contactor directly is connected with load, and other contactors are connected with DC/DC module in the multilevel voltage converter unit respectively.
Described multilevel voltage converter unit is by the DC/DC module composition of parallel connection, and each DC/DC module all is serially connected between the D.C. contactor and load of circuit switch unit, and the positive output of DC/DC module is just joined with isolating diode and output bus.
Described voltage monitoring unit is made of accessory power supply and cpu controller, and accessory power supply is to main power source and the detection chip Power supply of cpu controller, and cpu controller is according to detecting to get the action of each D.C. contactor in the voltage segmentation control circuit switch unit.
The present invention adopts multistage dc converter, can realize the stable of voltage and continuously every output, improve stability and reliability.Input voltage can be in the 50-270V scope arbitrarily input, avoid wide input voltage range and improve the design difficulty of power supply, reduce the stability of power supply.Because ultracapacitor has the cycle charge discharge electric life more than 500,000 times, the ultracapacitor that can configure extremely low capacity by multistage dc transformating power device just can satisfy the power supply requirements such as the power supply reserve time-delay of intelligent substation, particularly intelligent movable Substation Station, intelligent switch action, background monitoring.It is simple in structure, long service life.
Description of drawings
Fig. 1 is circuit theory diagrams of the present invention.
Embodiment
The invention will be further described below in conjunction with accompanying drawing:
As shown in the figure, ultracapacitor 1 can be established some groups, and what the present embodiment provided is one group, amounts to 100 series connection.Its total output is connected with the input terminal of four D.C. contactors in the circuit switch unit 2 respectively.The lead-out terminal of D.C. contactor KM1 in the circuit switch unit directly is connected with load, and the input of the module DC/DC1 in the lead-out terminal of D.C. contactor KM2 and the multilevel voltage converter unit 3 is connected; The input of module DC/DC2 in the lead-out terminal of D.C. contactor KM3 and the multilevel voltage converter unit is connected; The input of module DC/DC3 in the lead-out terminal of D.C. contactor KM4 and the multilevel voltage converter unit is connected.The multilevel voltage converter unit is powered to the 220V operating voltage voltage transformation of 50-270V to dc load, the positive output of DC/DC module is wherein just joined with isolating diode D1, D2, D3 and output bus, the anti-machine intimate that is poured into of output voltage bus when prevention module is out of order.Voltage monitoring unit 4 comprises accessory power supply and cpu controller two parts circuit.Accessory power supply is that super capacitor group both end voltage is converted to 5V/ ± 12V, offers main power source and the detection chip power supply of CPU, input voltage range 45-300V, output 5V/ ± 12V.Voltage monitoring unit cpu controller adopts 8 bit CPUs, sample rate be 2 microseconds/time, the voltage reference parameter of CPU is 2.500V, the CPU internal processes adopts recycle ratio, direct voltage on the ultracapacitor that detects is divided into four sections voltage regulating modes, by the drive circuit of large electric current, according to the direct current input contactor of each DC/DC of voltage-regulation of ultracapacitor.The relay output end of voltage monitoring unit is connected with D.C. contactor coil in the circuit switch unit, in order to control the break-make of D.C. contactor, whether the voltage monitoring unit also is connected with the output of DC/DC module, normal and to the host computer transmission information with the actual value that detects output voltage.
The course of work of the present invention is, when ultracapacitor output voltage during less than 46V, the voltage monitoring unit all disconnects according to D.C. contactor KM1, KM2, KM3, the KM4 in the magnitude of voltage control circuit switch unit that detects, and ultracapacitor is not to load output voltage electric current; When ultracapacitor output voltage during greater than 46V and less than 75V, voltage monitoring unit controls KM4 connects, and KM1, KM2, KM3 disconnect, and ultracapacitor is to load output voltage electric current, and KM3 prepares to start and connects simultaneously.The on-condition of KM3 is that the ultracapacitor output voltage is greater than 76V and less than 125V.DC/DC3 in the multilevel voltage converter unit and DC/DC2 output-parallel, can not produce output pours in down a chimney, DC/DC3 and DC/DC2 all have output at the ultracapacitor output voltage during greater than 76V and less than 85V, to remedy the zero output when critical voltage is changed, guarantee the use of load; When ultracapacitor output voltage during greater than 76V and less than 125V, voltage monitoring unit controls KM3 connects, and KM4 prepares disconnection.The ultracapacitor output voltage is during greater than 86V and less than 115V, the KM3 normal operation, and the DC/DC3 no-output, DC/DC2 normally exports, and KM1, KM2, KM4 disconnect; When ultracapacitor output voltage during greater than 116V and less than 185V, voltage monitoring unit controls KM2 connects, and KM3 disconnects during greater than 126V at the ultracapacitor output voltage; When ultracapacitor output voltage during greater than 186V, voltage monitoring unit controls KM2 disconnects, and KM1 connects, and at this moment, is used to load by ultracapacitor direct voltage output electric current.
In the middle of whole handoff procedure, the switching of the contactor of circuit switch unit has guaranteed that super capacitor electrode is pressed in the power supply stable output of critical point, backups each other, and guarantees the continued power of DC/DC converting power source.
Claims (4)
1. multistage dc transformating power device, it is characterized in that it is comprised of ultracapacitor, circuit switch unit, multilevel voltage converter unit, voltage monitoring unit, total output of ultracapacitor is connected with the multilevel voltage converter unit by the circuit switch unit, the multilevel voltage converter unit is connected with load, the voltage monitoring unit is connected with output and the circuit switch unit of ultracapacitor, in order to output voltage and the action of control circuit switch unit that detects ultracapacitor.
2. multistage dc transformating power device according to claim 1, it is characterized in that described circuit switch unit is made of the D.C. contactor of parallel connection, one of them D.C. contactor directly is connected with load, and other contactors are connected with DC/DC module in the multilevel voltage converter unit respectively.
3. multistage dc transformating power device according to claim 1, it is characterized in that described multilevel voltage converter unit is by the DC/DC module composition of parallel connection, each DC/DC module all is serially connected between the D.C. contactor and load of circuit switch unit, and the positive output of DC/DC module is just joined with isolating diode and output bus.
4. multistage dc transformating power device according to claim 1, it is characterized in that described voltage monitoring unit is made of accessory power supply and cpu controller, accessory power supply is to main power source and the detection chip Power supply of cpu controller, and cpu controller is according to detecting to get the action of each D.C. contactor in the voltage segmentation control circuit switch unit.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102891308A CN103023135A (en) | 2011-09-24 | 2011-09-24 | Multi-level direct current transformation power supply device |
| PCT/CN2012/080484 WO2013040975A1 (en) | 2011-09-24 | 2012-08-23 | Multi-level dc conversion power source device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102891308A CN103023135A (en) | 2011-09-24 | 2011-09-24 | Multi-level direct current transformation power supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103023135A true CN103023135A (en) | 2013-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102891308A Pending CN103023135A (en) | 2011-09-24 | 2011-09-24 | Multi-level direct current transformation power supply device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103023135A (en) |
| WO (1) | WO2013040975A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104261262A (en) * | 2014-10-29 | 2015-01-07 | 南通润邦电气工程有限公司 | RTG super-capacitor electronic control system |
| CN104319759A (en) * | 2014-09-03 | 2015-01-28 | 许昌许继晶锐科技有限公司 | DC power supply system for high-voltage DC transmission cooling system |
| CN110729809A (en) * | 2019-09-24 | 2020-01-24 | 智洋创新科技股份有限公司 | Direct-current power supply bus voltage loss automatic cross-over compensation system and method |
| CN116961206A (en) * | 2023-09-21 | 2023-10-27 | 深圳鹏城新能科技有限公司 | Control method of voltage conversion circuit, voltage conversion circuit and energy storage device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107181305B (en) * | 2017-06-29 | 2020-08-11 | 深圳市劳沃智能科技有限公司 | Energy storage circuit of single-fire bidirectional intelligent switch |
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| CN1841898A (en) * | 2005-03-31 | 2006-10-04 | 三美电机株式会社 | Multi-output type DC/DC converter and its control method |
| CN101214796A (en) * | 2007-12-27 | 2008-07-09 | 上海交通大学 | Driverless electric automobile power supply system based on super capacitance |
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| JP2008035573A (en) * | 2004-11-18 | 2008-02-14 | Tm:Kk | Electricity accumulation device employing electric double layer capacitor |
| CN201041953Y (en) * | 2007-04-12 | 2008-03-26 | 东莞市特龙金科能源科技有限公司 | A solar power supply conversion circuit |
| KR100967438B1 (en) * | 2009-11-02 | 2010-07-01 | 코칩 주식회사 | Standby power reduction device |
| US8395280B2 (en) * | 2010-02-16 | 2013-03-12 | Infineon Technologies Ag | Circuit arrangement including a multi-level converter |
-
2011
- 2011-09-24 CN CN2011102891308A patent/CN103023135A/en active Pending
-
2012
- 2012-08-23 WO PCT/CN2012/080484 patent/WO2013040975A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050185429A1 (en) * | 2004-02-24 | 2005-08-25 | Patrizio Vinciarelli | Adaptively configured voltage transformation module array |
| CN1841898A (en) * | 2005-03-31 | 2006-10-04 | 三美电机株式会社 | Multi-output type DC/DC converter and its control method |
| CN101214796A (en) * | 2007-12-27 | 2008-07-09 | 上海交通大学 | Driverless electric automobile power supply system based on super capacitance |
| CN201956683U (en) * | 2011-03-30 | 2011-08-31 | 天津市三源电力设备制造有限公司 | Direct current power supply using super capacitor group as energy accumulator |
| CN202231481U (en) * | 2011-09-24 | 2012-05-23 | 辽宁省电力有限公司大连供电公司 | Multi-stage direct-current conversion power supply device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319759A (en) * | 2014-09-03 | 2015-01-28 | 许昌许继晶锐科技有限公司 | DC power supply system for high-voltage DC transmission cooling system |
| CN104319759B (en) * | 2014-09-03 | 2019-05-07 | 许昌许继晶锐科技有限公司 | A kind of DC power-supply system of voltage direct-current transmission valve cooling system |
| CN104261262A (en) * | 2014-10-29 | 2015-01-07 | 南通润邦电气工程有限公司 | RTG super-capacitor electronic control system |
| CN110729809A (en) * | 2019-09-24 | 2020-01-24 | 智洋创新科技股份有限公司 | Direct-current power supply bus voltage loss automatic cross-over compensation system and method |
| CN116961206A (en) * | 2023-09-21 | 2023-10-27 | 深圳鹏城新能科技有限公司 | Control method of voltage conversion circuit, voltage conversion circuit and energy storage device |
| CN116961206B (en) * | 2023-09-21 | 2024-01-09 | 深圳鹏城新能科技有限公司 | Control method of voltage conversion circuit, voltage conversion circuit and energy storage device |
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| Publication number | Publication date |
|---|---|
| WO2013040975A1 (en) | 2013-03-28 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 116001 No. 102, Zhongshan, Dalian District, Liaoning, Zhongshan Road Applicant after: Dalian Power Supply Company, State Grid Liaoning Electric Power Co., Ltd. Applicant after: State Grid Corporation of China Address before: 116001 No. 102, Zhongshan, Dalian District, Liaoning, Zhongshan Road Applicant before: Dalian Power Supply Company of Liaoning Electric Power Co., Ltd. Applicant before: State Grid Corporation of China |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: DALIAN POWER SUPPLY COMPANY OF LIAONING ELECTRIC POWER CO., LTD. TO: DALIAN POWER SUPPLY COMPANY, STATE GRID LIAONING ELECTRIC POWER CO., LTD. |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130403 |