CN201018408Y - High power factor low harmonic power source switching device - Google Patents
High power factor low harmonic power source switching device Download PDFInfo
- Publication number
- CN201018408Y CN201018408Y CNU2007200786611U CN200720078661U CN201018408Y CN 201018408 Y CN201018408 Y CN 201018408Y CN U2007200786611 U CNU2007200786611 U CN U2007200786611U CN 200720078661 U CN200720078661 U CN 200720078661U CN 201018408 Y CN201018408 Y CN 201018408Y
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- CN
- China
- Prior art keywords
- thyristor
- transformer
- conversion apparatus
- electric power
- power conversion
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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Abstract
The utility model discloses a high-power factor low harmonic power converting device which comprises a single- or three-phase AC or AC converting device and a single- or three-phase AC or DC converting device; the utility model is characterized in that a primary winding of a reducing transformer is provided with a plurality of taps, each tap is connected with a group of thyristor voltage regulator to form a multi-layer bridge controllable voltage regulating circuit, and the power supply side of the controllable voltage regulating circuit is provided with a reactive power compensation and filter device. The utility model has the advantages of the high power factor, the small harmonic component, the required thyristor of small capacity, the low device cost and the small wire loss.
Description
Technical field
The utility model relates to electric power conversion apparatus, relates in particular to the low harmonic wave electric power conversion apparatus of a kind of High Power Factor.
Background technology
The main quality index of electric power conversion apparatus, the one, obtain High Power Factor is high conversion efficiency, the 2nd, harmonic component is low, obtains high-quality output.In addition, making the load electric current of voltage regulation component little, to reduce installation cost and loss, also is the principal economic indicators of electric power conversion apparatus.No matter traditional electric power conversion apparatus is AC/AC converting means such as various AC voltage regulator for the load use; Still ac/dc converting means such as various rectifier do not have fine addressing the above problem more.
The utility model content
The purpose of this utility model provides a kind of electric power conversion apparatus, and this installs not only power factor height, and harmonic component is little, and the voltage regulation component capacity is little, and installation cost is low, and loss is little.
Implement following technical scheme and can realize above-mentioned purpose:
A kind of High Power Factor hangs down the harmonic wave electric power conversion apparatus, comprises transformer, thyristor voltage regulator, it is characterized in that: the former limit winding of described transformer has a plurality of taps, and each tap connects one group of thyristor voltage regulator, constitutes multilayer bridge-type voltage regulating circuit with controllable.
A kind of High Power Factor hangs down the harmonic wave electric power conversion apparatus, comprises transformer, thyristor voltage regulator, rectifier, and described rectifier connects the secondary winding of transformer; It is characterized in that: the former limit winding of described transformer has a plurality of taps, and each tap connects one group of thyristor voltage regulator, constitutes multilayer bridge-type voltage regulating circuit with controllable.
The mains side of described voltage regulating circuit with controllable is provided with reactive power compensation and filter.
Described thyristor voltage regulator is the unidirectional thyristor of bidirectional thyristor or two reverse parallel connections.
Described transformer is single-phase transformer or three-phase transformer.
Useful technique effect of the present utility model: power factor height not only, harmonic component is little, and the thyristor capacity is little, and installation cost is low, and line loss is little.
Description of drawings
Fig. 1 is the circuit diagram of conventional art single phase alternating current (A.C.) (thyristor) regulator
Fig. 2 is the circuit diagram of the utility model single phase alternating current (A.C.)/interchange (thyristor) electric power conversion apparatus
Fig. 3 is the oscillogram (90 ° of the angles of flow) of conventional art single phase alternating current (A.C.) (thyristor) pressure regulation phase shifting control
Fig. 4 is the utility model single phase alternating current (A.C.)/interchange (thyristor) electric power conversion apparatus pressure regulation oscillogram of one particular moment (the full conducting of a branch road, another branch road replenish 30 ° of conductings)
Fig. 5 is the circuit diagram of the utility model single phase alternating current (A.C.)/direct current (thyristor) electric power conversion apparatus
Fig. 6 is the circuit diagram of the utility model three-phase alternating current/interchange (thyristor) electric power conversion apparatus
Fig. 7 is the circuit diagram of the utility model three-phase alternating current/direct current (thyristor) electric power conversion apparatus
Embodiment
Example one blow-up/AC converter
Referring to Fig. 2: many taps on the winding of the former limit of transformer T (primary side), the utilized level that the no-load voltage ratio of transformer T is divided into a plurality of values, the utilized level that just output amplitude of transformer T is divided into a plurality of different magnitudes of voltage, may command branch road KT1, the KT2 of design respective numbers in many taps ... select suitable control logic, this electric power conversion apparatus is worked in the mode near all-wave as far as possible at zero free voltage point in the full scale range, obtain and significantly improve power factor, reduce harmonic pollution, reduce voltage peak simultaneously.
Thyristor in the conventional art exchanges that regulating circuit (as shown in Figure 1), scr rectification circuit can export has only the controlled waveform of one deck, and the utility model device can be exported the controlled waveform of multilayer, make the most contiguous one deck keep full conducting as long as make multilayer trigger logical circuit control than required output voltage correspondence, and on respective angles, make the most contiguous one deck triggering and conducting respective corners higher than this voltage, just can obtain required output voltage.
Fig. 3 is the oscillogram of the AC voltage adjusting phase shifting control (when the triggering and conducting angle is 90 °) in the conventional art.Fig. 4 replenishes the oscillogram in 30 ° of moment of conducting when keeping the thyristor of full conducting, KT2 branch road to be 150 ° at the triggering and conducting angle for the thyristor of KT1 branch road in Fig. 2 circuit, with Fig. 3 be equivalence fully.Under the situation of the equal voltage effective value of output, can find out obviously that the wave distortion of this device is little, voltage peak is low.Obviously, this device can significantly improve power factor, reduces harmonic pollution.
In addition, according to different circuit, different loads corresponding reactive power compensation in parallel and filter L, further the reactive power of compensation network further reduces harmonic pollution in grid side.
Another advantage of this device is: the may command branch road KT that goes up tap on the former limit of transformer T (primary side), the current class of its required controlled power element (thyristor) is littler than the current class of the controlled power element (thyristor) of the may command branch road of going up tap at secondary (secondary side), the thyristor capacity is little, and cost reduces.Particularly at the DC power supply of big electric current, go up tapping ratio on the former limit of transformer T (primary side) and go up tap at secondary (secondary side), this advantage is more obvious.
The AC/DC converting means that example two is single-phase
Referring to Fig. 5: with the difference of example one only be, the secondary of transformer T (secondary side) has rectifier Z, and all the other are identical.
Friendship/the AC converter of example three three-phases
Referring to Fig. 6: with the difference of example one only be, transformer T is a three-phase transformer, and all the other are identical.
The AC/DC converting means of example four three-phases
Referring to Fig. 7: with the difference of example three only be, the secondary of transformer T (secondary side) has rectifier Z, and all the other are identical.
Claims (8)
1. a High Power Factor hangs down the harmonic wave electric power conversion apparatus, comprise transformer, thyristor voltage regulator, it is characterized in that: the former limit winding of described transformer has a plurality of taps, and each tap connects one group of thyristor voltage regulator, constitutes multilayer bridge-type voltage regulating circuit with controllable.
2. electric power conversion apparatus according to claim 1 is characterized in that: the mains side of described voltage regulating circuit with controllable is provided with reactive power compensation and filter.
3. electric power conversion apparatus according to claim 1 is characterized in that: described thyristor voltage regulator is the unidirectional thyristor of bidirectional thyristor or two reverse parallel connections.
4. electric power conversion apparatus according to claim 1 is characterized in that: described transformer is single-phase transformer or three-phase transformer.
5. the low harmonic wave electric power conversion apparatus of High Power Factor comprises transformer, thyristor voltage regulator, rectifier, and described rectifier connects the secondary winding of transformer; It is characterized in that: the former limit winding of described transformer has a plurality of taps, and each tap connects one group of thyristor voltage regulator, constitutes multilayer bridge-type voltage regulating circuit with controllable.
6. electric power conversion apparatus according to claim 5 is characterized in that: the mains side of described voltage regulating circuit with controllable is provided with reactive power compensation and filter.
7. electric power conversion apparatus according to claim 5 is characterized in that: described thyristor voltage regulator is the unidirectional thyristor of bidirectional thyristor or two reverse parallel connections.
8. electric power conversion apparatus according to claim 5 is characterized in that: described transformer is single-phase transformer or three-phase transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200786611U CN201018408Y (en) | 2007-03-01 | 2007-03-01 | High power factor low harmonic power source switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200786611U CN201018408Y (en) | 2007-03-01 | 2007-03-01 | High power factor low harmonic power source switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201018408Y true CN201018408Y (en) | 2008-02-06 |
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ID=39058908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200786611U Expired - Lifetime CN201018408Y (en) | 2007-03-01 | 2007-03-01 | High power factor low harmonic power source switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201018408Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101442288A (en) * | 2008-09-02 | 2009-05-27 | 江苏西贝电子网络有限公司 | Intelligent charger |
| CN102185489A (en) * | 2011-04-25 | 2011-09-14 | 孙嘉麟 | Three-phase low voltage distribution voltage-reducing device |
| CN107017783A (en) * | 2017-05-04 | 2017-08-04 | 浙江电牛电气有限公司 | The distribution transformer for keeping output voltage constant |
| CN115940672A (en) * | 2023-03-14 | 2023-04-07 | 成都英格利科技有限公司 | Electrolytic hydrogen production rectifier with rapid voltage regulation capability and control method thereof |
-
2007
- 2007-03-01 CN CNU2007200786611U patent/CN201018408Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101442288A (en) * | 2008-09-02 | 2009-05-27 | 江苏西贝电子网络有限公司 | Intelligent charger |
| CN102185489A (en) * | 2011-04-25 | 2011-09-14 | 孙嘉麟 | Three-phase low voltage distribution voltage-reducing device |
| CN102185489B (en) * | 2011-04-25 | 2013-05-15 | 孙嘉麟 | Three-phase low voltage distribution voltage-reducing device |
| CN107017783A (en) * | 2017-05-04 | 2017-08-04 | 浙江电牛电气有限公司 | The distribution transformer for keeping output voltage constant |
| CN115940672A (en) * | 2023-03-14 | 2023-04-07 | 成都英格利科技有限公司 | Electrolytic hydrogen production rectifier with rapid voltage regulation capability and control method thereof |
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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 |
Owner name: SICHUAN YINGJIE ELECTRIC CO., LTD. Free format text: FORMER NAME: SICHUAN INJET ELECTRIC CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: The economic and Technological Development Zone of Sichuan Province, Deyang City, 618000 street, No. 295 Patentee after: Sichuan Injet Electric Co., Ltd. Address before: The economic and Technological Development Zone of Sichuan Province, Deyang City, 618000 street, No. 295 Patentee before: Sichuan Injet Electric Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080206 |
|
| CX01 | Expiry of patent term |