GB459443A - Improvements in the regulation of rectifiers by means of grids - Google Patents
Improvements in the regulation of rectifiers by means of gridsInfo
- Publication number
- GB459443A GB459443A GB18996/35A GB1899635A GB459443A GB 459443 A GB459443 A GB 459443A GB 18996/35 A GB18996/35 A GB 18996/35A GB 1899635 A GB1899635 A GB 1899635A GB 459443 A GB459443 A GB 459443A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rectifier
- current
- transformer
- saturating
- inductance
- 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
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
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/145—Conversion of ac power input into dc 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 thyratron or thyristor type requiring extinguishing means
- H02M7/15—Conversion of ac power input into dc 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 thyratron or thyristor type requiring extinguishing means using discharge tubes only
- H02M7/151—Conversion of ac power input into dc 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 thyratron or thyristor type requiring extinguishing means using discharge tubes only with automatic control
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
459,443. Rectifying alternating current. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET, Võsteras, Sweden. July 3, 1935, Nos. 18996 and 18997. Convention dates, Nov. 1, 1934 and May 17, 1935. [Class 38 (ii)] A grid-controlled rectifier is automatically regulated to maintain constant voltage, constant current, or constant power output by an arrangement comprising a phase shifting impedance network for the grid potentials, one element of the network comprising a variably saturated inductance in which the saturating current consists of the difference between a standard current and a current proportional to the quantity to be regulated. In the arrangement shown in Fig. 1, the grids of a rectifier 1 are fed from transformers 31 through resistances and inductances 3 associated with saturating windings 30. The latter are fed from points 8, 10 with the difference between a standard current derived through a stabilizing resistance 4, transformer 5, rectifier 6 and smoothing circuit 7, 11, and a current proportional to the output voltage of the rectifier 1. A compound voltage characteristic may be imparted to the rectifier by causing the standard current to vary with load by energizing a winding 50 on the transformer 5 from a current transformer 12 on the primary side of the main supply transformer. A relay 13 may be arranged to introduce a stand-by stabilizing resistance 40 in the event of failure of the resistance 4. Switches 15, 16 may be associated with the ignition device or main circuit breaker of the rectifier in such manner that the transformer 5 is cut out when the rectifier is inoperative. In a modification, Fig. 2 (not shown), the saturating windings are fed with the difference between a standard current derived as in Fig. 1 and a current proportional to the rectifier load current derived through current transformers and an auxiliary rectifier. Fig. 3 shows a further modification wherein a current proportional to the rectifier load current is supplied through a resistance 70 and inductance 71 to a rectifier 73, and the saturation of the inductance 71 is varied in accordance with the voltage of the main rectifier 1 by a winding 72. Thus a current proportional to the power output of the rectifier 1 is delivered by the rectifier 73 and balanced against a standard current supplied by a rectifier 54, the difference serving to energize a saturating winding 55 controlling the grid phase shifting circuit 60 to effect regulation of the rectifier to constant power. Specification 412,773 is referred to. According to the Specification as open to inspection under Sect. 91, the controlling current may supply one field component of a synchronous machine instead of energizing a saturating winding of an inductance. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE459443X | 1934-11-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB459443A true GB459443A (en) | 1937-01-04 |
Family
ID=20310195
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB18996/35A Expired GB459443A (en) | 1934-11-01 | 1935-07-03 | Improvements in the regulation of rectifiers by means of grids |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB459443A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE946371C (en) * | 1939-10-14 | 1956-08-02 | Siemens Ag | Device for the automatic control of rectifiers by means of premagnetized chokes |
DE950736C (en) * | 1952-03-18 | 1956-10-18 | Siemens Ag | Device for preventing regular oscillations in electrical consumers operated by magnetic amplifiers |
-
1935
- 1935-07-03 GB GB18996/35A patent/GB459443A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE946371C (en) * | 1939-10-14 | 1956-08-02 | Siemens Ag | Device for the automatic control of rectifiers by means of premagnetized chokes |
DE950736C (en) * | 1952-03-18 | 1956-10-18 | Siemens Ag | Device for preventing regular oscillations in electrical consumers operated by magnetic amplifiers |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2100715A (en) | Energizing system | |
US2322130A (en) | Electrical regulating apparatus | |
US1851692A (en) | Electric regulator | |
US2157834A (en) | Electric regulating system | |
GB446790A (en) | Improvements in means for automatically regulating an electrical quantity | |
GB459443A (en) | Improvements in the regulation of rectifiers by means of grids | |
US2477988A (en) | Voltage regulator for alternating current machines | |
US2092859A (en) | Electrical regulating apparatus for rectifiers | |
US2437066A (en) | Electric control circuit | |
GB718594A (en) | Improvements relating to apparatus for the supply of direct current to a load circuit from an alternating current source through a rectifier | |
GB469414A (en) | Improvements relating to apparatus for automatically controlling the current in an alternating current circuit | |
GB571851A (en) | Means for regulating a machine voltage | |
GB612442A (en) | Improvements relating to voltage regulating apparatus for alternating current circuits | |
US2186244A (en) | Vapor electric device | |
US2238623A (en) | Control system | |
US2476805A (en) | Regulating system for synchronous condensers | |
GB462385A (en) | Improvements in the grid control of ionic valves | |
GB468431A (en) | Improvements in electric supply systems | |
GB462757A (en) | Means for regulating rectifiers by grid control | |
US2128771A (en) | Regulating means for current rectifying or converting apparatus | |
GB518549A (en) | Improvements in or relating to voltage regulating systems for alternating current generators | |
GB549318A (en) | Improvements in current limiting arrangements for shunt motors | |
GB529577A (en) | Improvements in and relating to electric regulating systems | |
GB552038A (en) | Improvements in automatic regulation of current in alternating current load circuits | |
GB325989A (en) | Improvements in or relating to alternating current dynamos |