CN103973127A - High-voltage rotor frequency converter with single wave chopping tube - Google Patents
High-voltage rotor frequency converter with single wave chopping tube Download PDFInfo
- Publication number
- CN103973127A CN103973127A CN201410216173.7A CN201410216173A CN103973127A CN 103973127 A CN103973127 A CN 103973127A CN 201410216173 A CN201410216173 A CN 201410216173A CN 103973127 A CN103973127 A CN 103973127A
- Authority
- CN
- China
- Prior art keywords
- frequency converter
- reactor
- capacitor
- igbt
- rotor frequency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Rectifiers (AREA)
Abstract
A high-voltage rotor frequency converter with a single wave chopping tube comprises a rectifier, an IGBT, a capacitor, a check diode, an inverter, a first electric reactor and a second electric reactor. The first electric reactor is connected between the positive electrode position of the rectifier and the gate electrode of the IGBT in series. The check diode is connected between the gate electrode of the IGBT and the capacitor in series. The second electric reactor is arranged between the capacitor and the cathode of the inverter in series. The single IGBT wave chopping tube is adopted, the heating amount is obviously smaller than that achieved when multiple IGBTs are connected in parallel, losses of the high-voltage rotor frequency converter are further lowered, and the energy efficiency ratio of the whole frequency converter is improved. Due to the design of the single wave chopping tube, the problems of the technology that multiple IGBTs are connected in parallel are solved, and potential safety hazards of parallel operation are eliminated. As the overall size and heating amount of the high-voltage rotor frequency converter are small, the requirement for the installing environment is further lowered, and the high-voltage rotor frequency converter can adapt to working environments which are narrower and poorer in heat dissipation situation.
Description
Technical field
The present invention relates to high-voltage motor speed adjusting technique field, more particularly, particularly a kind of single copped wave pipe high pressure rotor frequency converter.
Background technology
High pressure rotor frequency converter is a kind of high-tension winding motor speed regulation equipment growing up in recent years, is conventionally applied to the high-tension winding electric machine speed regulation of Driving Fan load of the pumps.Be widely used in the multiple fields such as various industry, water conservancy, city heat supply water supply.
High pressure rotor frequency converter is in the market all taking boost chopper (Boost) as basic prototype, adapted capacity motor is that 220KW is between 3500KW, device start mode is generally liquid resistance startup or variable resistor starts, and equipment formation is generally starting cabinet, rectification variable-frequency cabinet and inverter cabinet.
Because high-tension winding rotor voltage is not generally very high, main circuit chopper adopts import IGBT module formation in parallel mostly, owing to being subject to the restriction of IGBT device voltage grade and current class, is generally all to realize copped wave function by way in parallel.Several IGBT modules in parallel just need the current-sharing filter reactor of same quantity, due to multitube parallel, and IGBT is operated in the switching frequency rank of KHz, the higher switching loss of frequency is larger, and the caloric value of IGBT is larger, and the synchronism of multitube parallel needs very high technical requirement, even if adopt optical fiber technology transmission, due to the difference of IGBT pipe self-characteristic, open the turn-off time still can not ensure identically, the trouble free service of IGBT is constituted a threat to.
Simultaneously owing to there being several the IGBT current-sharing filter reactor that just needs same quantity in parallel, these are to be all operated under the electric current environment of hundreds of peace, and equipment volume is large, and caloric value is high, need supporting with it heat abstractor, make whole frequency converter volume and weight all more too fat to move.
Along with the development of power electronic technology, the continuous progress of technique, has had single only 6500 volts of withstand voltage and 3600 high-power IGBT devices of pacifying now, and we can develop the frequency converter that volume is less.For the narrow and small environment of some installing space, we need a kind of volume less, the equipment that heat dissipation capacity is lower.
Summary of the invention
The object of the invention is to avoid the defect of prior art and a kind of single copped wave pipe high pressure rotor frequency converter is provided, thereby effectively solving the defect existing in prior art.
For achieving the above object, the technical scheme that the present invention takes is: a kind of single copped wave pipe high pressure rotor frequency converter,
Comprise: rectifier, insulated gate bipolar transistor, capacitor, check diode, inverter, the first reactor, the second reactor;
Wherein,
Described the first reactor serial connection is arranged between the anodal position and the grid of described insulated gate bipolar transistor of described rectifier;
Described check diode serial connection is arranged between the grid and described capacitor of described insulated gate bipolar transistor;
Described the second reactor serial connection is arranged between the negative electrode of described capacitor and described inverter.
Preferably, described rectifier unit includes cathode output end, described first reactor unit of connecting on described cathode output end is connected with described check diode anode, and described second reactor of connecting on described check diode cathode is connected with inverter negative electrode.
Preferably, the grid of described insulated gate bipolar transistor includes input, and described input connects the anode of described check diode; One end of described capacitor connects the negative electrode of described check diode;
The other end of the emitter-base bandgap grading output of the negative pole of described rectifier, described insulated gate bipolar transistor, described capacitor and the anode of described inverter interconnect.
By foregoing circuit optimal design, beneficial effect of the present invention is: first adopt single IGBT copped wave pipe, make supporting current-sharing filter reactor quantity also only need one, also significantly reduce for high power device provides the device of heat radiation, dwindled the volume of frequency converter equipment; Single IGBT copped wave pipe caloric value is significantly less than multitube parallel simultaneously, and the loss of equipment is further reduced, and has improved the Energy Efficiency Ratio of whole frequency converter; Many difficult problems of IGBT multitube parallel technology have been evaded in secondly single copped wave pipe design, have got rid of parallel running potential safety hazard.Again, due to the reducing of Whole Equipment volume and caloric value, the requirement of installation environment is also further reduced, can adapt to narrower and small, the worse operational environment of heat radiation situation.The design of single IGBT copped wave pipe has further been saved cost and is made device structure simpler simultaneously again.
Brief description of the drawings
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is circuit theory schematic diagram of the present invention.
In figure: 1, rectifier; 2, the first reactor; 3, insulated gate bipolar transistor; 4, check diode; 5, capacitor; 6, the second reactor; 7, inverter.
Embodiment
Below in conjunction with accompanying drawing, principle of the present invention and feature are described, example, only for explaining the present invention, is not intended to limit scope of the present invention.
IGBT, Insulated Gate Bipolar Transistor, that is: insulated gate bipolar transistor.
Please refer to Fig. 1, Fig. 1 is circuit theory schematic diagram of the present invention.
The invention provides a kind of single copped wave pipe high pressure rotor frequency converter, comprising: rectifier 1, insulated gate bipolar transistor 3, capacitor 5, check diode 4, inverter 7, the first reactor 2, the second reactor 6; Wherein, the first reactor 2 serial connections are arranged between the anodal position of rectifier and the grid of insulated gate bipolar transistor 3; Check diode 4 serial connections are arranged between the grid and capacitor 5 of insulated gate bipolar transistor 3; The second reactor 6 serial connections are arranged between the negative electrode of capacitor 5 and inverter 4.
Specific embodiment of the invention scheme is:
The first reactor serial connection is arranged between rectifier unit positive pole and insulated gate bipolar transistor (IGBT) grid, check diode serial connection is arranged between insulated gate bipolar transistor (IGBT) grid and capacitor, and the second reactor serial connection is arranged between capacitor and inversion unit negative electrode.
Rectifier unit cathode output end is connected after the first reactor and is connected to check diode anode, and check diode cathode is connected after the second reactor and is connected to inverter negative electrode.
The gate input of insulated gate bipolar transistor (IGBT) connects the anode of check diode; One end of capacitor connects the negative electrode of check diode.
The emitter-base bandgap grading output of rectifier unit negative pole, insulated gate bipolar transistor (IGBT), the other end of capacitor and inverter positive pole interconnect.
Single copped wave pipe high pressure rotor frequency converter provided by the invention, can use common IGBT module, also can use the special copped wave module of inner integrated check diode.Being directed to high-voltage motor rotor electric current and voltage is not very large situation, and the present invention selects electric pressure 1200V/1700V/3300V/4500V/6500V, the IGBT module of current class 600A to 3600A.
By foregoing circuit optimal design, beneficial effect of the present invention is: first adopt single IGBT copped wave pipe, make supporting current-sharing filter reactor quantity also only need one, also significantly reduce for high power device provides the device of heat radiation, dwindled the volume of frequency converter equipment; Single IGBT copped wave pipe caloric value is significantly less than multitube parallel simultaneously, and the loss of equipment is further reduced, and has improved the Energy Efficiency Ratio of whole frequency converter; Many difficult problems of IGBT multitube parallel technology have been evaded in secondly single copped wave pipe design, have got rid of parallel running potential safety hazard.Again, due to the reducing of Whole Equipment volume and caloric value, the requirement of installation environment is also further reduced, can adapt to narrower and small, the worse operational environment of heat radiation situation.The design of single IGBT copped wave pipe has further been saved cost and is made device structure simpler simultaneously again.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (3)
1. a single copped wave pipe high pressure rotor frequency converter, is characterized in that,
Comprise: rectifier, insulated gate bipolar transistor, capacitor, check diode, inverter, the first reactor, the second reactor;
Wherein,
Described the first reactor serial connection is arranged between the anodal position and the grid of described insulated gate bipolar transistor of described rectifier;
Described check diode serial connection is arranged between the grid and described capacitor of described insulated gate bipolar transistor;
Described the second reactor serial connection is arranged between the negative electrode of described capacitor and described inverter.
2. single copped wave pipe high pressure rotor frequency converter according to claim 1, is characterized in that,
Described rectifier unit includes cathode output end, and described first reactor unit of connecting on described cathode output end is connected with described check diode anode, and described second reactor of connecting on described check diode cathode is connected with inverter negative electrode.
3. single copped wave pipe high pressure rotor frequency converter according to claim 1, is characterized in that,
The grid of described insulated gate bipolar transistor includes input, and described input connects the anode of described check diode; One end of described capacitor connects the negative electrode of described check diode;
The other end of the emitter-base bandgap grading output of the negative pole of described rectifier, described insulated gate bipolar transistor, described capacitor and the anode of described inverter interconnect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410216173.7A CN103973127A (en) | 2014-05-20 | 2014-05-20 | High-voltage rotor frequency converter with single wave chopping tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410216173.7A CN103973127A (en) | 2014-05-20 | 2014-05-20 | High-voltage rotor frequency converter with single wave chopping tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103973127A true CN103973127A (en) | 2014-08-06 |
Family
ID=51242277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410216173.7A Pending CN103973127A (en) | 2014-05-20 | 2014-05-20 | High-voltage rotor frequency converter with single wave chopping tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103973127A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105553380A (en) * | 2016-02-19 | 2016-05-04 | 尤江峰 | Speed regulation device for rotor side of high-voltage winding motor |
| CN111874202A (en) * | 2020-07-13 | 2020-11-03 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Energy-consuming ship self-flow cooling system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101018015A (en) * | 2006-01-10 | 2007-08-15 | 美蓓亚株式会社 | DC-DC converter |
| CN201018418Y (en) * | 2007-02-02 | 2008-02-06 | 福州大学 | Liftable current type AC-AC convertor |
| CN101154887A (en) * | 2007-10-11 | 2008-04-02 | 天津大学 | Wind power generation power conversion device of direct-driving type permanent magnet synchronous motor |
| CN101951168A (en) * | 2010-09-16 | 2011-01-19 | 上海交通大学 | Alternating current (AC) converter for converting high voltage to low voltage |
| CN203243230U (en) * | 2013-04-12 | 2013-10-16 | 保定优科电气科技有限责任公司 | High-voltage rotor frequency converter preventing chopper from being damaged during inversion overturn process |
| CN103368281A (en) * | 2013-07-25 | 2013-10-23 | 华南理工大学 | Resonant radio energy transmitting device with PFC (power factor correction) |
-
2014
- 2014-05-20 CN CN201410216173.7A patent/CN103973127A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101018015A (en) * | 2006-01-10 | 2007-08-15 | 美蓓亚株式会社 | DC-DC converter |
| CN201018418Y (en) * | 2007-02-02 | 2008-02-06 | 福州大学 | Liftable current type AC-AC convertor |
| CN101154887A (en) * | 2007-10-11 | 2008-04-02 | 天津大学 | Wind power generation power conversion device of direct-driving type permanent magnet synchronous motor |
| CN101951168A (en) * | 2010-09-16 | 2011-01-19 | 上海交通大学 | Alternating current (AC) converter for converting high voltage to low voltage |
| CN203243230U (en) * | 2013-04-12 | 2013-10-16 | 保定优科电气科技有限责任公司 | High-voltage rotor frequency converter preventing chopper from being damaged during inversion overturn process |
| CN103368281A (en) * | 2013-07-25 | 2013-10-23 | 华南理工大学 | Resonant radio energy transmitting device with PFC (power factor correction) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105553380A (en) * | 2016-02-19 | 2016-05-04 | 尤江峰 | Speed regulation device for rotor side of high-voltage winding motor |
| CN111874202A (en) * | 2020-07-13 | 2020-11-03 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Energy-consuming ship self-flow cooling system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102158110A (en) | Main circuit of non-isolated photovoltaic grid inverter and control realizing method thereof | |
| CN102130623B (en) | Improved main circuit structure of photovoltaic synchronization inverter | |
| CN102013813A (en) | Four-quadrant high pressure frequency converter topology structure without transformer | |
| CN102510232A (en) | Five-level voltage source inverter | |
| CN101860246A (en) | Inversion unit modularization structure device of photovoltaic inverter | |
| CN203827171U (en) | Driving circuit of power load | |
| CN103973127A (en) | High-voltage rotor frequency converter with single wave chopping tube | |
| CN202475300U (en) | Five-level voltage source inverter | |
| CN201682403U (en) | Modularized structure device of inverter unit in photovoltaic inverter | |
| CN213717851U (en) | High-voltage rotor frequency conversion device with superposed chopped waves | |
| CN104682762A (en) | Low-leakage-current grid-connected inverter | |
| CN105373016A (en) | Quick cut-off device of thyristor direct current switch and operation method thereof | |
| CN101944836B (en) | High-power converting module | |
| CN110994984A (en) | Bidirectional direct current energy consumption device | |
| CN103326397B (en) | Unified power quality controller controlled by hybrid frequency | |
| CN104270012B (en) | A kind of multiphase frequency converter | |
| CN204349903U (en) | A kind of photovoltaic combining inverter accessory power supply | |
| CN103595282A (en) | Current conversion module circuit of modularized multi-level current converter | |
| CN204290756U (en) | Based on the AC/DC translation circuit that power device mixing is in parallel | |
| CN203243230U (en) | High-voltage rotor frequency converter preventing chopper from being damaged during inversion overturn process | |
| CN203617927U (en) | Frequency conversion motor integrated device | |
| CN202009354U (en) | Discrete frequency soft starting circuit | |
| CN201282431Y (en) | Active feedback device | |
| CN204392110U (en) | A kind of low-leakage current combining inverter | |
| CN202872654U (en) | High-power explosion-proof frequency converter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140806 |