GB1055579A - An electrical converter connection - Google Patents
An electrical converter connectionInfo
- Publication number
- GB1055579A GB1055579A GB4338763A GB4338763A GB1055579A GB 1055579 A GB1055579 A GB 1055579A GB 4338763 A GB4338763 A GB 4338763A GB 4338763 A GB4338763 A GB 4338763A GB 1055579 A GB1055579 A GB 1055579A
- Authority
- GB
- United Kingdom
- Prior art keywords
- voltage
- guiding
- half cycle
- resistors
- nov
- 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.)
- Expired
Links
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
Classifications
-
- 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
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters
-
- 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
- H02M5/005—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 using discharge tubes
-
- 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
- H02M5/02—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 without intermediate conversion into DC
- H02M5/04—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 without intermediate conversion into DC by static converters
- H02M5/22—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 without intermediate conversion into DC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M5/25—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 without intermediate conversion into DC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
- H02M5/27—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 without intermediate conversion into DC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means for conversion of frequency
- H02M5/271—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 without intermediate conversion into DC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means for conversion of frequency from a three phase input voltage
-
- 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
- H02M7/66—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output with possibility of reversal
- H02M7/68—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output with possibility of reversal by static converters
- H02M7/72—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/75—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
- H02M7/757—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rectifiers (AREA)
- Ac-Ac Conversion (AREA)
- Inverter Devices (AREA)
Abstract
1,055,579. Changing frequency. ALLMANNA SVENSKA ELEKTRISKA A.B. Nov. 4, 1963 [Nov. 14, 1962], No. 43387/63. Heading H2F. Frequency changes of the kind having for each secondary phase (such as X in Fig. 2) two converter groups 1, 2, one of which acts as a rectifier and the other of which acts as an inverter during one half cycle of the secondary voltage, are controlled by guiding control voltage derived from a control generator 14; there is a positive difference between the mean inverter voltage and the mean rectifier voltage over a half cycle, and this difference increases when the guiding control voltage increases, in order to avoid circulating current. In the arrangement of Fig. 2 the guiding voltage generator 14 is connected as shown through resistors 15 to 19 to the converters 1, 2. and the circuit includes D.C. sources 20, 21 whose voltage varies with the guiding voltage. Fig. 3 shows the guiding voltages L1, L2 seen by the individual converters 1, 2 respectively, and the effective guiding voltage X which determines the final output. The waveform X in Fig. 3 is almost sinusoidal, but as L1 and L2 are reduced, X would depart further from a sine wave unless E20 and E21 wave also reduced (Figs. 4 and 5, not shown). A modification of the above arrangement replaces the D.C. sources by diodes 22, 23 (Fig. 6. not shown) across part of the resistors 17 and 18. The final output (Fig. 7, not shown) will follow L2 for the first half cycle and L1 for the second half cycle, as in Fig. 3. -
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE1218562 | 1962-11-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1055579A true GB1055579A (en) | 1967-01-18 |
Family
ID=20295293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4338763A Expired GB1055579A (en) | 1962-11-14 | 1963-11-04 | An electrical converter connection |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH410168A (en) |
| DE (1) | DE1413461B2 (en) |
| GB (1) | GB1055579A (en) |
-
1963
- 1963-11-02 DE DE19631413461 patent/DE1413461B2/en active Pending
- 1963-11-04 GB GB4338763A patent/GB1055579A/en not_active Expired
- 1963-11-06 CH CH1370363A patent/CH410168A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH410168A (en) | 1966-03-31 |
| DE1413461B2 (en) | 1971-04-29 |
| DE1413461A1 (en) | 1970-08-13 |
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