CN1973425A - Automatic synchronisation of pulse-width modulation rectifiers switched in parallel on railway vehicles - Google Patents
Automatic synchronisation of pulse-width modulation rectifiers switched in parallel on railway vehicles Download PDFInfo
- Publication number
- CN1973425A CN1973425A CNA2005800206520A CN200580020652A CN1973425A CN 1973425 A CN1973425 A CN 1973425A CN A2005800206520 A CNA2005800206520 A CN A2005800206520A CN 200580020652 A CN200580020652 A CN 200580020652A CN 1973425 A CN1973425 A CN 1973425A
- Authority
- CN
- China
- Prior art keywords
- pwm converter
- pulse
- width modulation
- parallel
- circuit
- 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
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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
- H02M7/493—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 the static converters being arranged for operation in parallel
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Rectifiers (AREA)
Abstract
In a circuitry consisting of three-phase pulse-width modulation rectifiers on a railway vehicle, so as to generate a three-phase output voltage from a DC input voltage to supply 3AC consumers, a plurality of pulse-width modulation rectifiers are switched in parallel, a regulation or control structure implemented as hardware or software automatically synchronising the pulse-width modulation rectifiers with the output voltage so as to proportionately supply the consumers.
Description
The present invention relates to the circuit of the PWM converter on a kind of electric locomotive, this circuit produces three-phase output voltage and is used for the electric to 3AC from the DC input voltage.
Present installing additional usually is higher than the required frequency-converter power of power that is connected on the electric locomotive, so that also can supply with load as much as possible by second redundant pulse width modulated rectifier (PWR) under the situation that PWM converter breaks down.Meanwhile, for connecting described redundant circuit needs coupling protector as shown in Figure 1.Well-known in addition: for powering load, essential install bigger PWM converter and thereby more PWR power, must and realize the parallel circuits of three-phase pulse width modulated rectifier by principal and subordinate's working method by additional tie line, final thus under the situation that PWM converter breaks down, continue power supply to load.Under the situation that second PWM converter breaks down, produce resultant fault through regular meeting.
Technical problem of the present invention is, a kind of circuit of PWM converter is provided, and wherein, but has improved the mastery of load power source, bigger instantaneous power can be provided and can reduce the power of the three-phase pulse width modulated rectifier that integral body installs additional.
This technical problem is solved in the following manner according to the present invention, that is: a plurality of PWM converter in parallel and realize PWM converter and output voltage and synchronous to the independence of powering in proportion of load by adjusting or the control structure that realizes according to hardware or software mode.
Therefore do not having principal and subordinate's function and between the control unit of no pulse width modulated rectifier under the situation of data communication, the parallel circuits that is used for setting up the PWM converter (PWR) of 3AC grid has solved in the railway industry outstanding question up to now.
Particularly from PWM converter parallel circuits, obtain following advantage according to no mutual data technique communication of the present invention:
For example provide bigger instantaneous power for compressor start.
But improve the mastery of 3AC load power source, because the restriction that the fault of PWM converter can cause energy to be supplied with by stages.
Can reduce the power that PWM converter totally installs additional, exactly from according to Fig. 1 solution up to now for example 800kVA drop to according to Fig. 2 and 3 533kVA according to the embodiment of the invention.
Can cancel the coupling protector that is used for redundant configuration.
Can cancel PWM converter control of communication or data circuit-for example be used for synchronously or be used to guarantee that the principal and subordinate moves.
According to the current-limit mode of PWM converter system and can be for the higher instantaneous power of domination, by protection component (for example motor protection switch) make discerptible load under the situation about breaking down can be without a doubt and rapidly and the 3AC distributor separate.
In the dependent claims the preferred embodiment of the present invention is illustrated.
Roughly illustrate respectively in the accompanying drawing and belong to prior art circuits and according to two embodiment of circuit of the present invention.
Fig. 1 illustrates the custom circuit of PWM converter.
Fig. 2 illustrates according to the present invention and adopts current potential to separate the parallel circuits of the PWM converter of DC power supply.
Fig. 3 illustrates the parallel circuits that adopts the PWM converter of shared DC power supply according to the present invention.
Claims (3)
1. the circuit of the three-phase pulse width modulated rectifier on the electric locomotive, this circuit produces three-phase output voltage and is used for the electric to 3AC from the DC input voltage, it is characterized in that a plurality of PWM converter in parallel are also implemented PWM converter and described output voltage and synchronous to the independence of powering in proportion of load by the adjusting or the control structure that realize with hardware or software mode.
2. by the described circuit of claim 1, it is characterized in that described PWM converter can at random be connected the AC distributor by the output protection device.
3. by claim 1 or 2 described circuit, it is characterized in that described PWM converter is equipped with suitable sensor circuit and output filter, this output filter for example can also comprise the current potential separator by transformer.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004030228A DE102004030228B4 (en) | 2004-06-23 | 2004-06-23 | Circuit of pulse inverters in railway vehicles |
| DE102004030228.6 | 2004-06-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1973425A true CN1973425A (en) | 2007-05-30 |
Family
ID=34968992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005800206520A Pending CN1973425A (en) | 2004-06-23 | 2005-05-31 | Automatic synchronisation of pulse-width modulation rectifiers switched in parallel on railway vehicles |
Country Status (5)
| Country | Link |
|---|---|
| CN (1) | CN1973425A (en) |
| AT (1) | AT505471A1 (en) |
| DE (1) | DE102004030228B4 (en) |
| RU (1) | RU2007102301A (en) |
| WO (1) | WO2006000511A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT504120B1 (en) * | 2006-09-28 | 2008-03-15 | Fronius Int Gmbh | INVERTER SYSTEM, INVERTER AND METHOD FOR OPERATING INVERTERS OF AN INVERTER SYSTEM |
| FR2955719B1 (en) * | 2010-01-28 | 2012-02-24 | Hispano Suiza Sa | METHOD AND DEVICE FOR CONTROLLING POLYPHASE ELECTRIC MACHINE |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2295508B (en) * | 1992-02-18 | 1996-09-04 | Hitachi Ltd | An apparatus for controlling parallel running of inverters |
| DE19546495A1 (en) * | 1995-12-13 | 1997-06-19 | Aeg Stromversorgungs Syst Gmbh | Equalisation of power distribution to loads e.g. for railway locomotive |
| DE19614627A1 (en) * | 1996-04-13 | 1997-10-16 | Abb Patent Gmbh | High voltage converter system |
| DE19630284A1 (en) * | 1996-07-26 | 1998-01-29 | Abb Patent Gmbh | Drive system for a rail vehicle and control method therefor |
-
2004
- 2004-06-23 DE DE102004030228A patent/DE102004030228B4/en not_active Withdrawn - After Issue
-
2005
- 2005-05-31 AT AT0923305A patent/AT505471A1/en not_active Application Discontinuation
- 2005-05-31 WO PCT/EP2005/052477 patent/WO2006000511A1/en active Application Filing
- 2005-05-31 RU RU2007102301/09A patent/RU2007102301A/en unknown
- 2005-05-31 CN CNA2005800206520A patent/CN1973425A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE102004030228A1 (en) | 2006-01-26 |
| DE102004030228B4 (en) | 2008-06-19 |
| RU2007102301A (en) | 2008-07-27 |
| AT505471A1 (en) | 2009-01-15 |
| WO2006000511A1 (en) | 2006-01-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |