CN106655858A - Annular inverter circuit - Google Patents
Annular inverter circuit Download PDFInfo
- Publication number
- CN106655858A CN106655858A CN201510724505.7A CN201510724505A CN106655858A CN 106655858 A CN106655858 A CN 106655858A CN 201510724505 A CN201510724505 A CN 201510724505A CN 106655858 A CN106655858 A CN 106655858A
- Authority
- CN
- China
- Prior art keywords
- circuit
- main circuit
- motor
- inverter main
- annular
- 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
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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P2201/00—Indexing scheme relating to controlling arrangements characterised by the converter used
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
An electronic inverter circuit which matches a brushless DC motor is a power device with excellent performance. A traditional inverter main circuit is open, and the invention provides an annular main inverter circuit. In special occasions, a superhigh-speed brushless DC motor (with rotating speed which reaches 100 thousands cycles or more in one minute) is required, and the rotating speed cannot be increased because of incapability of increasing current switching speed of the circuit. The annular inverter main circuit reduces the number of circles of a switched coil in each time and reduces switching current in each time by 50%, thereby realizing superhigh-speed operation of the brushless DC motor. The graph of the annular inverter main circuit is shown in a graph 1, wherein a, b, c, x, y and z respectively represent heads and tails of a three-phase coil; and 1, 2, 3, 4, 5 and 6 represent light source conduction signals.
Description
Technical field
The matching used electronics inverter main circuit of brshless DC motor, this patent proposes annular inverter main circuit.
Background technology
It is widely adopted with electronics Driven by inverter brshless DC motor, the power set of superior performance, traditional inverter main circuit is open loop.
In special occasions, need to use ultrahigh speed brshless DC motor (100,000 revs/min of turn up), the speed for finding conventional inverter main circuit switching electric current does not catch up with, and causes motor speed not increase.
Patented invention content
The main cause that inverter main circuit switch speed does not increase is that the energy that electronic switching tube (such as IGBT) once switches is too big, and electric current can not quickly cross 0 in coil, cause switching tube to mislead, and make commutation failure.
The switching energy of switching tube：
E=1/2LI^2
L is switched coil inductance (L=uw^2/Rm) w number of turns u magnetic track rate Rm magnetic resistance
Electric current in I coils
Reduce switching energy, one is to reduce wire circle, and two is to reduce the electric current in switching coil.Switch the number of turns in fig. 2 different with conventional three-phase circuit, and electric current is traditional 50% in present coil, switching energy reduces 75%.
Fig. 1 is inverter main circuit figure.
Fig. 2 is loop circuit fundamental diagram, shows magnetic pole (N poles) position photoelectric positioning apparatus, on rotating disk, circumferentially gets 80 degree of gardens arc hole, and its center line overlaps with N poles center line；Simultaneously upper, on lower lid along and the same diameter in rotating disk Hu Kong gardens, each to make a call to six decile aperture six in concentric circumferences, upper lid fills six photodiodes, and lower cover fills six light emitting diodes, mark 1 respectively, 2,3,4,5,6 distinguish one, a pair of LJ.When luminous tube light gets to photosensitive tube by arcuate socket, correspondence switching tube (IGBT) is turned on.60 degree switchings should be often crossed, 80 degree of arc holes are used why, this is switched afterwards to first turn on, and to circuit reduction is impacted.
Traditional inverter circuit drives brshless DC motor, actually transducer drive three-phase synchronous motor, this inverter main circuit to drive brushless electric machine, is close to brshless DC motor truly, and two kinds of motors are contrasted below：
Test proves that it is exerted oneself as conventional brushless DC motor twice or so.Certainly switching tube is more one times, and technical economic analysis is done when using.
Loop circuit, can be 6,7,8..Side shape, is all this patent protection domain.
Claims (3)
1. the characteristic of bad shape inverter main circuit is to greatly reduce each switching coil quantity of switching tube, and the energy of switching electric current reduces, and makes to realize high speed switch speed.
2. traditional inverter main circuit is different from, is that switching electric current amount is shown in few 50%, switching electric current energy reduces, and makes to realize high speed switch speed.
3. bad shape inverter main circuit can be any number of polygon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510724505.7A CN106655858A (en) | 2015-10-28 | 2015-10-28 | Annular inverter circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510724505.7A CN106655858A (en) | 2015-10-28 | 2015-10-28 | Annular inverter circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106655858A true CN106655858A (en) | 2017-05-10 |
Family
ID=58830561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510724505.7A Pending CN106655858A (en) | 2015-10-28 | 2015-10-28 | Annular inverter circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106655858A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2922268Y (en) * | 2006-07-10 | 2007-07-11 | 东风汽车有限公司 | Three-phase double-full-control bridge power device topology control device |
| CN104579067A (en) * | 2015-01-09 | 2015-04-29 | 南京航空航天大学 | Excitation fault fault-tolerant power generation system of double-salient electro-magnetic motor and control method of system |
| CN204559452U (en) * | 2015-03-27 | 2015-08-12 | 沈阳工业大学 | Based on the brushless coil excitation DC motor control system of current chopping |
-
2015
- 2015-10-28 CN CN201510724505.7A patent/CN106655858A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2922268Y (en) * | 2006-07-10 | 2007-07-11 | 东风汽车有限公司 | Three-phase double-full-control bridge power device topology control device |
| CN104579067A (en) * | 2015-01-09 | 2015-04-29 | 南京航空航天大学 | Excitation fault fault-tolerant power generation system of double-salient electro-magnetic motor and control method of system |
| CN204559452U (en) * | 2015-03-27 | 2015-08-12 | 沈阳工业大学 | Based on the brushless coil excitation DC motor control system of current chopping |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhou Bofei Document name: Notification of Publication and of Entering the Substantive Examination Stage of the Application for Invention |
|
| DD01 | Delivery of document by public notice | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170510 |
|
| WD01 | Invention patent application deemed withdrawn after publication |