CN2899271Y - Power module controlling power supply of chain DC-to-AC converter - Google Patents
Power module controlling power supply of chain DC-to-AC converter Download PDFInfo
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- CN2899271Y CN2899271Y CN 200620049898 CN200620049898U CN2899271Y CN 2899271 Y CN2899271 Y CN 2899271Y CN 200620049898 CN200620049898 CN 200620049898 CN 200620049898 U CN200620049898 U CN 200620049898U CN 2899271 Y CN2899271 Y CN 2899271Y
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- 239000003990 capacitor Substances 0.000 claims abstract description 18
- 238000004804 winding Methods 0.000 claims description 9
- 238000002955 isolation Methods 0.000 abstract 2
- 230000000881 depressing effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 230000000087 stabilizing effect Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model discloses a power module controlling power supply of chain DC-to-AC converter, comprising a fuse (1), a step-down transformer (2), an input rectifier (3), an input filter (4), a charging circuit (5), a capacitor (6), a DC/AC transform circuit (7), an isolation transformer (8), an output rectifier (9) and an output filter (10). Three-phase alternating current is connected with the input end of the step-down transformer (2) through the fuse (1), and changed into direct current through rectification and filter after depressing voltage. The direct current charges up the capacitor (6) through the charging circuit (5)on the one hand, and is transported to the DC/AC transform circuit (7) and changed into alternating current on the other hand, then outputs DC power supply through rectification and filter after passing through the isolation transformer (8). The controlling power supply makes the power supply controlling can adapt to both the requirement that the controlling power supply is without power cut during power interruption, and the requirement that controlling power supply is without power cut in the situation of the fuse burn-out.
Description
Technical field
The utility model relates to a kind of control power supply of chain inverter power model.
Background technology
Chain inverter is also referred to as H bridge series inverter, this inverter is in series by the interchange output of a plurality of single-phase H bridge inverters (also can be described as power model), can be widely used in the various convertor assemblys, as high voltage variable frequency speed regulator, novel STATCOM (STATCOM), generation of electricity by new energy inverter, dynamic electric voltage recovery device (DVR), active filter (APF) etc.
When chain inverter was applied to the high voltage variable frequency speed regulator of 1kV-10kV voltage output, its DC side power supply was from a plurality of secondary winding and a plurality of rectifier of becoming of input transformer.For each power model, it exchanges secondary the become winding of input from input transformer, is reverse into alternating voltage output through single-phase H bridge again behind rectifying and wave-filtering.Since high voltage variable frequency speed regulator must assurance device under the input power-off condition of instantaneous (being generally less than 3 seconds) continuous operation, so the control power supply of power model is often taken from DC filter capacitors and is not had a power failure with assurance.But after the fault that power model generation interchange input protection fuse blows, the control power supply will have influence on the bypass operation of power model with dead electricity.Therefore, need to seek a kind of new control power supply, the requirement that the control power supply does not have a power failure in the time of can adapting to instantaneous power-off can adapt to interchange input fuse again and blow the requirement that the control power supply does not have a power failure under the situation.
The utility model content
The purpose of this utility model is to overcome the deficiency of prior art and control power supply that a kind of chain inverter power model is provided, solves exchanging the input instantaneous power-off and/or exchange the input fuse to blow the problem that the control power supply can have a power failure under the situation.
For achieving the above object, the technical scheme that the utility model is taked is: comprise fuse, step-down transformer, input rectifier, input filter, charging circuit, capacitor, DC/AC translation circuit, isolating transformer, output rectifier and output filter, described three-phase alternating current is received the input of step-down transformer through fuse; The output of step-down transformer is received the input of input rectifier, and the output of input rectifier is received the input of input filter, and the output of input filter is received the input of charging circuit and the input of DC/AC translation circuit; The output of charging circuit is received the two ends of capacitor; The ac output end of DC/AC translation circuit is received the winding two ends, former limit of isolating transformer, the pair of isolating transformer becomes the input that winding is received output rectifier, the output of output rectifier is received the input of output filter, output filter output DC source.
In the control power supply of above-mentioned chain inverter power model, described charging circuit is by charging control circuit, resistance R 1, triode P1, diode D7 forms, the earth terminal COM of charging control circuit links to each other with the negative pole of input filter, the power end DCO of charging control circuit and resistance R 1, the negative electrode of diode D7, the positive pole of input filter links to each other, the other end of resistance R 1 and the I-of charging control circuit end, the emitter of triode P1 links to each other, the base stage of triode P1 links to each other the collector electrode of the anode of diode D7 and triode P1 with the DRV of charging control circuit end, the VES end of charging control circuit, capacitor anode links to each other.
Advantage of the present utility model: charging circuit of the present utility model is just often realized the constant current charge and the voltage stabilizing controlled function of capacitor 6 at three-phase alternating current, when AC outage or input fuse when blowing, the electric energy of capacitor 6 is transmitted back to the input of DC/AC translation circuit 7, the requirement that the control power supply did not have a power failure when the control power supply can adapt to instantaneous power-off like this can adapt to interchange input fuse again and blow the requirement that the control power supply does not have a power failure under the situation.
Below in conjunction with drawings and Examples operation principle of the present utility model is further described.
Description of drawings
Fig. 1 is a structured flowchart of the present utility model.
Fig. 2 is the application schematic diagram of the utility model control power supply in power model.
Fig. 3 is a concrete enforcement circuit diagram of the present utility model.
Fig. 4 is the concrete enforcement circuit diagram of the utility model charging control circuit.
Fig. 5 is the concrete enforcement circuit diagram of the utility model DC/AC conversion control circuit.
Embodiment
Referring to Fig. 1, the utility model comprises exchanging imports fuse 1, step-down transformer 2, input rectifier 3, input filter 4, charging circuit 5, capacitor 6, DC/AC translation circuit 7, isolating transformer 8, output rectifier 9 and output filter 10.An end that exchanges the input fuse is received the three-phase alternating current input of power model respectively, and the other end is received the three-phase alternating current input of step-down transformer 2 respectively; The three-phase alternating current output of step-down transformer 2 is received the three-phase alternating current input of input rectifier 3, the dc output end of input rectifier 3 is received the input of input filter 4, and the output of input filter 4 is received the input of charging circuit 5 and the input of DC/AC translation circuit 7; The output of charging circuit 5 is received the two ends of capacitor 6; The ac output end of DC/AC translation circuit 7 is received the winding two ends, former limit of isolating transformer 8, the pair of isolating transformer 8 becomes the ac input end that winding is received output rectifier 9, the dc output end of output rectifier 9 is received the input of output filter 10, and use for the control circuit of power model in the output output galvanic current source of output filter 10.
Referring to Fig. 2, there is shown the application schematic diagram of the utility model in power model.Power model is transformed into DC power supply with alternating current input power supplying through rectifier bridge B1 and filter E1, by the control of power model control circuit, the half-bridge converter of being made up of SLA, SLB, SRA, SRB and inverse parallel diode thereof converts the DC power supply on the E1 to AC power output.Power model control power supply of the present utility model is used to the power model control circuit that galvanic current source DC+/DC-is provided.
Referring to Fig. 3, this concrete enforcement among the figure, three-phase alternating-current supply from the power model ac input end is input to step-down transformer 2TR1 through three interchange input fuse 1FA, FB, FC, and TR1 output is transformed into DC power supply through input rectifier 3 and the input filter 4E1 that diode D1-D6 forms.Charging circuit 5 is made up of R1, P1, D7 and charging control circuit.ES is a capacitor 6.Charging control circuit is given DC/AC translation circuit 7 with the loopback of capacitor ES electric energy by voltage stabilizing control and constant current charge that R1 and P1 realize ES when D7 is implemented in interchange input power failure.DC/AC translation circuit 7 is made up of M1, C1, D8, R5 and DC/AC conversion control circuit, the service time that the DC/AC conversion control circuit comes power controlling semiconductor switch M1 according to the output voltage DC+/DC-size of gathering, thereby control output DC source DC+/DC-'s is stable, and C1, R5, D8 are used to suppress isolate when M1 turn-offs the peak voltage that the former limit of transformer 8TR2 winding produces.D9, D10 form output rectifier 9, and L1, E2 form output filter 10.
Referring to Fig. 4, Fig. 4 is the concrete enforcement figure of charging control circuit among Fig. 3.Among the figure, IC1 is chip UC3833, and R3, R4 gather super capacitor voltage VES, is used for super capacitor voltage stabilizing control; The DCO/I-signal is the super capacitor charging current, is used for Current limited Control, and C1, R2, C2 are the control circuit subsidiary component.
Referring to Fig. 5, Fig. 5 is the concrete enforcement figure of DC/AC conversion control circuit among Fig. 3.Among the figure, IC2 is chip UC3845A, and V1 is a pressurizer, and V1 imports DCO/COM, and output control power supply+12V/COM give IC2; R9, R10 gather output voltage DC+/DC-, by comparator VR1 (TL431), R8, optocoupler O1 and R3 feedback output voltage DC+/DC-, are used for voltage stabilizing control; R1, R2, C1 are voltage stabilizing control compensation circuit, and R5, C3 produce sawtooth waveforms, and R4, C2 input DC/AC alteration switch tube current signal I is used to realize current-mode control; R6, R7 output pwm signal are to the switching tube gate pole.
Above embodiment is concrete enforcement circuit theory diagrams of the present utility model, does not limit protection range of the present utility model with this.Any equivalent transformation circuit of doing based on the utility model all belongs to the utility model protection range.
Claims (2)
1. the control power supply of a chain inverter power model, comprise fuse (1), step-down transformer (2), input rectifier (3), input filter (4), charging circuit (5), capacitor (6), DC/AC translation circuit (7), isolating transformer (8), output rectifier (9) and output filter (10), it is characterized in that: three-phase alternating current is received the input of step-down transformer (2) through fuse (1); The output of step-down transformer (2) is received the input of input rectifier (3), the output of input rectifier (3) is received the input of input filter (4), and the output of input filter (4) is received the input of charging circuit (5) and the input of DC/AC translation circuit (7); The output of charging circuit (5) is received the two ends of capacitor (6); The ac output end of DC/AC translation circuit (7) is received the winding two ends, former limit of isolating transformer (8), the pair of isolating transformer (8) becomes winding and receives the input of output rectifier (9), the output of output rectifier (9) is received the input of output filter (10), output filter (10) output DC source.
2. the control power supply of chain inverter power model according to claim 1, it is characterized in that: described charging circuit (5) is by charging control circuit, resistance (R1), triode (P1), diode (D7) is formed, the earth terminal of charging control circuit (COM) links to each other with the negative pole of input filter (4), power end of charging control circuit (DCO) and resistance (R1), the negative electrode of diode (D7), the positive pole of input filter (4) links to each other, the other end of resistance (R1) and the I-of charging control circuit end, the emitter of triode (P1) links to each other, the base stage of triode (P1) links to each other the collector electrode of the anode of diode (D7) and triode (P1) with the DRV of charging control circuit end, the VES end of charging control circuit, capacitor (6) is anodal to link to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620049898 CN2899271Y (en) | 2006-01-24 | 2006-01-24 | Power module controlling power supply of chain DC-to-AC converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620049898 CN2899271Y (en) | 2006-01-24 | 2006-01-24 | Power module controlling power supply of chain DC-to-AC converter |
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| Publication Number | Publication Date |
|---|---|
| CN2899271Y true CN2899271Y (en) | 2007-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200620049898 Expired - Lifetime CN2899271Y (en) | 2006-01-24 | 2006-01-24 | Power module controlling power supply of chain DC-to-AC converter |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101304217B (en) * | 2008-07-02 | 2010-06-02 | 东南大学 | Switch power supply for chain type convertor power unit controller |
| CN102005907A (en) * | 2010-10-29 | 2011-04-06 | 清华大学 | Working power supply of power module in modular multi-level converter |
| CN102324850A (en) * | 2011-10-13 | 2012-01-18 | 江苏威凡智能电气科技有限公司 | Chain link control power supply in chain static synchronous compensator |
| CN103715869A (en) * | 2013-11-15 | 2014-04-09 | 四川三业电子有限公司 | Multichannel isolation type power device switch drive module of power conversion controller |
| CN107222136A (en) * | 2016-12-19 | 2017-09-29 | 南京磁谷科技有限公司 | A kind of electric supply installation of the magnetic suspension air blower with soft start |
| CN109494994A (en) * | 2018-10-25 | 2019-03-19 | 上海电机学院 | A kind of regulated power supply of the pre- equalizing network of band |
| WO2019133692A1 (en) * | 2017-12-29 | 2019-07-04 | Sen Zhang | Gas turbine - energy storage hybrid system design |
-
2006
- 2006-01-24 CN CN 200620049898 patent/CN2899271Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101304217B (en) * | 2008-07-02 | 2010-06-02 | 东南大学 | Switch power supply for chain type convertor power unit controller |
| CN102005907A (en) * | 2010-10-29 | 2011-04-06 | 清华大学 | Working power supply of power module in modular multi-level converter |
| CN102005907B (en) * | 2010-10-29 | 2012-11-14 | 清华大学 | Working power supply of power module in modular multi-level converter |
| CN102324850A (en) * | 2011-10-13 | 2012-01-18 | 江苏威凡智能电气科技有限公司 | Chain link control power supply in chain static synchronous compensator |
| CN103715869A (en) * | 2013-11-15 | 2014-04-09 | 四川三业电子有限公司 | Multichannel isolation type power device switch drive module of power conversion controller |
| CN103715869B (en) * | 2013-11-15 | 2016-05-11 | 四川绿然电子科技有限公司 | The multi-path isolated power device switch drive module of power conversion controller |
| CN107222136A (en) * | 2016-12-19 | 2017-09-29 | 南京磁谷科技有限公司 | A kind of electric supply installation of the magnetic suspension air blower with soft start |
| WO2019133692A1 (en) * | 2017-12-29 | 2019-07-04 | Sen Zhang | Gas turbine - energy storage hybrid system design |
| CN109494994A (en) * | 2018-10-25 | 2019-03-19 | 上海电机学院 | A kind of regulated power supply of the pre- equalizing network of band |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: LIU WENHUI; PATENTEE Free format text: FORMER OWNER: LIU WENHUI Effective date: 20071012 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20071012 Address after: 410009 No. 7, No. 208, Xintian District, Changsha, Hunan Co-patentee after: TIANJIN XIANDAO BELL ELECTRIC CO., LTD. Patentee after: Liu Wenhui Address before: 410009 No. 7, No. 208, Xintian District, Changsha, Hunan Patentee before: Liu Wenhui |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080725 Address after: No. 208, 7 Xintian District, Changsha, Hunan, zip code: 410009 Co-patentee after: TIANJIN XIANDAO BELL ELECTRIC CO., LTD. Patentee after: Liu Wenhui Co-patentee after: Sieyuan Qingneng Power Electronic Co., Ltd. Address before: No. 208, 7 Xintian District, Changsha, Hunan, zip code: 410009 Co-patentee before: TIANJIN XIANDAO BELL ELECTRIC CO., LTD. Patentee before: Liu Wenhui |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090123 Address after: 187 building, No. 1800, Jiangchuan Road, Shanghai, Minhang District: 200240 Patentee after: Sieyuan Qingneng Power Electronic Co., Ltd. Address before: No. 208, 7 Xintian District, Changsha, Hunan, zip code: 410009 Co-patentee before: TIANJIN XIANDAO BELL ELECTRIC CO., LTD. Patentee before: Liu Wenhui Co-patentee before: Sieyuan Qingneng Power Electronic Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: SIYUAN QINGNENG ELECTRICAL APPLIANCES ELECTRONIC C Free format text: FORMER OWNER: LIU WENHUI Effective date: 20090123 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070509 |
|
| EXPY | Termination of patent right or utility model |