CN104660058A - Middle-high voltage variable-frequency power source of novel topological structure - Google Patents
Middle-high voltage variable-frequency power source of novel topological structure Download PDFInfo
- Publication number
- CN104660058A CN104660058A CN201310576343.8A CN201310576343A CN104660058A CN 104660058 A CN104660058 A CN 104660058A CN 201310576343 A CN201310576343 A CN 201310576343A CN 104660058 A CN104660058 A CN 104660058A
- Authority
- CN
- China
- Prior art keywords
- phase
- group
- power
- power source
- frequency power
- 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
- 238000004804 winding Methods 0.000 claims abstract description 4
- 238000001914 filtration Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 abstract 1
- 230000006641 stabilisation Effects 0.000 description 4
- 238000011105 stabilization Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
- H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
- H02M5/44—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
- H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
- H02M5/44—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
- H02M5/453—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal
- H02M5/458—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
- Ac-Ac Conversion (AREA)
Abstract
The invention relates to a middle-high voltage variable-frequency power source of a novel topological structure. The middle-high voltage variable-frequency power source is composed of a phase-shifting rectifier transformer and a plurality of power units. A secondary side of the phase-shifting rectifier transformer is composed of multiple different phase groups, wherein each phase group is divided into three windings in delta connection. Each phase group is used for supplying electricity to a same group of power units; the power units in the same phase are orderly serially connected and overlapped to form a multi-level structure. All serially connected and overlapped power units in an A phase, a B phase and a C phase are simultaneously connected to a three-phase bridge rectifier transformer in the form of star connection. The power source with high quality and high reliability is provided by the invention.
Description
Technical field
The present invention relates to a kind of Novel variable-frequency electric power system.
Background technology
The topological structure of variable frequency power supply of the prior art is all the single-phase tandem type structure based on full-control type power device composition, and access motor is the power-supply system that motor provides controllable frequency to export.The balance that single-phase Cascade Topology Structure structure is widely used in motor load controls, in upper and electric current and voltage output control, to have the advantages such as control effects is good, fast response time.
Summary of the invention
The object of this invention is to provide a kind of mesohigh variable frequency power supply of novel topological structure, this electric power system can output voltage adjustable range be 0 ~ 10kV continuously, frequency-tuning range is the three-phase alternating current of 0 ~ 60Hz, provides the power supply of high-quality, high reliability.
For achieving the above object, the present invention is achieved through the following technical solutions:
A kind of mesohigh variable frequency power supply of novel topological structure, be made up of phase-shifting rectifier transformer, multiple power cell, phase-shifting rectifier transformer secondary is made up of multiple out of phase group, each phase-group is divided into 3 windings, adopt delta connection, often organize phase-group to power respectively to same group of power cell, same phase power unit successively overlapped in series forms many level block, and the power cell of A phase, B phase, all overlapped in series of C phase accesses three-phase bridge rectification transformer simultaneously and connects in a star fashion.
Described power cell input side is provided with the fuse shielded; rectification side forms one direction energy transferring rectification circuit by diode D-a, D-b, D-c, D-d, D-e, D-f; capacitance group C forms DC filtering link; capacitance group C is parallel with and all presses discharge resistance R, and inverter side forms 3 level voltages by controlled power switching device VT-a, VT-b, VT-c, VT-d and exports.
Compared with prior art, advantage of the present invention is: safely, reliably; There are wider voltage and frequency-tuning range, voltage stabilization and frequency stabilization can be realized and export.
Accompanying drawing explanation
Fig. 1 is the system construction drawing of the mesohigh variable frequency power supply of novel topological structure.
Fig. 2 is power cell structure figure.
Embodiment
See Fig. 1, a kind of mesohigh variable frequency power supply of novel topological structure, transformer T secondary is made up of 6 out of phase groups, each phase-group is divided into 3 windings, adopt delta connection, often organize phase-group to power respectively to same group of power cell, as: phase-group 1 is powered to unit A1, unit B 1, unit C1 simultaneously.Same phase unit is connected successively, unit A1, unit A2, unit A3, unit A4, unit A5, unit A6 connect successively, unit B 1, unit B 2, unit B 3, unit B 4, unit B 5, unit B 6 are connected successively, and unit C1, unit C2, unit C3, unit C4, unit C5, unit C6 connect successively.A phase, B phase, all unit of C phase access bridge type rectifier transformer simultaneously and connect in a star fashion, provide variable frequency power supply to export.
See Fig. 2, power cell input side fuse F1, F2 of described variable frequency power supply realize defencive function.Rectification side forms one direction energy transferring rectification circuit by diode D-a, D-b, D-c, D-d, D-e, D-f; capacitance group C forms DC filtering link; resistance R realizes DC side and all presses and provide discharge channel for capacitance group C after variable frequency power supply is shut down; indirect protection equipment operating and personal security, inverter side controlled power switching device VT-a, VT-b, VT-c, VT-d realize 3 level voltages and export.Advantage of the present invention is: safely, reliably; There are wider voltage and frequency-tuning range, voltage stabilization and frequency stabilization can be realized and export.
Claims (1)
1. the mesohigh variable frequency power supply of a novel topological structure, it is characterized in that, be made up of phase-shifting rectifier transformer, multiple power cell, phase-shifting rectifier transformer secondary is made up of multiple out of phase group, each phase-group is divided into 3 windings, adopt delta connection, often organize phase-group to power respectively to same group of power cell, same phase power unit successively overlapped in series forms many level block, and the power cell of A phase, B phase, all overlapped in series of C phase accesses three-phase bridge rectification transformer simultaneously and connects in a star fashion;
Described power cell input side is provided with the fuse shielded; rectification side forms one direction energy transferring rectification circuit by diode D-a, D-b, D-c, D-d, D-e, D-f; capacitance group C forms DC filtering link; capacitance group C is parallel with and all presses discharge resistance R, and inverter side forms 3 level voltages by controlled power switching device VT-a, VT-b, VT-c, VT-d and exports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310576343.8A CN104660058A (en) | 2013-11-18 | 2013-11-18 | Middle-high voltage variable-frequency power source of novel topological structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310576343.8A CN104660058A (en) | 2013-11-18 | 2013-11-18 | Middle-high voltage variable-frequency power source of novel topological structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104660058A true CN104660058A (en) | 2015-05-27 |
Family
ID=53250846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310576343.8A Pending CN104660058A (en) | 2013-11-18 | 2013-11-18 | Middle-high voltage variable-frequency power source of novel topological structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104660058A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107241025A (en) * | 2017-07-17 | 2017-10-10 | 华中科技大学 | A kind of high voltage power supply |
| CN112311246A (en) * | 2019-07-30 | 2021-02-02 | 株洲中车时代电气股份有限公司 | Permanent magnet variable frequency transmission system for central air conditioner and central air conditioner system |
-
2013
- 2013-11-18 CN CN201310576343.8A patent/CN104660058A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107241025A (en) * | 2017-07-17 | 2017-10-10 | 华中科技大学 | A kind of high voltage power supply |
| CN112311246A (en) * | 2019-07-30 | 2021-02-02 | 株洲中车时代电气股份有限公司 | Permanent magnet variable frequency transmission system for central air conditioner and central air conditioner system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Yang et al. | Modulation and control of transformerless UPFC | |
| CN104685771B (en) | Power-converting device | |
| RU2016124170A (en) | METHOD FOR OPERATION OF A THREE-PHASE PRIMARY WINDING STRUCTURE AND A PRIMARY BLOCK | |
| US10096999B2 (en) | Gas tube-switched flexible alternating current transmission system | |
| AU2015202261B2 (en) | Voltage adjusting apparatus | |
| CN104660058A (en) | Middle-high voltage variable-frequency power source of novel topological structure | |
| RU157607U1 (en) | AC TRACTION ELECTRICITY SUPPLY SYSTEM | |
| CN103384119A (en) | Alternating current side energy-taking device and method for static var generator unit module | |
| CA2815182A1 (en) | Current supply arrangement with a first and a second current supply device, wherein the second current supply device is connected to the first current supply device | |
| US20150249400A1 (en) | Converter | |
| Bhattacharya | Wide-band Gap (WBG) WBG devices enabled MV power converters for utility applications—Opportunities and challenges | |
| CN107171270B (en) | Intensive deicing device constant current, constant pressure modularization dynamic passive compensation component | |
| CN204517668U (en) | A kind of three-phase for power supply system of electric traction turns single-phase invertor | |
| CN108054929A (en) | A kind of converter plant of electric railway ground automatic neutral-section passing system | |
| CN203660896U (en) | Medium and high voltage variable-frequency power supply with novel topological structure | |
| Kavya et al. | Comparison of controllers of hybrid HVDC link in multi-infeed application | |
| CN102487192B (en) | Direct current converted valve compound test heavy current protection withdraw apparatus | |
| CN202889209U (en) | Power supply | |
| CN104882887A (en) | Frequency conversion speed adjusting device output filter and control method | |
| CN103618321A (en) | Reactive compensating capacitor device | |
| CN103715947A (en) | Thyristor assembly for soft start of coal mine mechanical-electrical equipment | |
| CN204231259U (en) | Three-phase AC-AC frequency converter fault-tolerant operation device during motor runs | |
| CN102638174A (en) | Isolated constant amplitude vector alternating current voltage regulator of power frequency transformer | |
| CN203326896U (en) | Power unit of unit serially-connected type high-voltage frequency converter | |
| CN104638937A (en) | Three-phase-to-single-phase converter for electric power traction power supply system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150527 |