GB479990A - Regulating electric quantities in current converters - Google Patents

Regulating electric quantities in current converters

Info

Publication number
GB479990A
GB479990A GB13375/37A GB1337537A GB479990A GB 479990 A GB479990 A GB 479990A GB 13375/37 A GB13375/37 A GB 13375/37A GB 1337537 A GB1337537 A GB 1337537A GB 479990 A GB479990 A GB 479990A
Authority
GB
United Kingdom
Prior art keywords
current
circuit
regulating
transformer
rectifier
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
Application number
GB13375/37A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ABB Norden Holding AB
Original Assignee
ASEA AB
Allmanna Svenska Elektriska AB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ASEA AB, Allmanna Svenska Elektriska AB filed Critical ASEA AB
Publication of GB479990A publication Critical patent/GB479990A/en
Expired legal-status Critical Current

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)
  • Supply And Distribution Of Alternating Current (AREA)
  • Rectifiers (AREA)

Abstract

479,990. Converting. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. May 11, 1937, No. 13375. Convention date, May 12, 1936. [Class 38 (ii)] In a converting arrangement in which the grid control is varied in dependence on the difference between a regulating current and a standard current the regulating current consists of two components, one a current representing the quantity to be regulated and the other a current representing the rate of change of the quantity. In an arrangement for regulating the voltage of the D.C. circuit of a rectifier 1, Fig. 1, a regulating current obtained from the D.C. circuit is compared with a standard current at the point 5 and the difference current controls a phase shifting impedence 2 in the grid circuit. The component of the regulating current proportional to the voltage is obtained by means of a resistance 4 and the component proportional to the rate of change of voltage by means of a condenser 6. In a modification of this the condenser 6 may be connected across the D.C. circuit through a transformer and resistance the secondary of the transformer being connected to the points 5. If the transformer has a large magnetizing current the condenser may be omitted. In a further modification, Fig. 3, for regulating the current of a rectifier 1, the component proportional to the current is obtained from a current transformer 9 and rectifier 10, and the component proportional to the rate of change of current is obtained from a current transformer 11 in the D.C. circuit. The primary of this transformer may be the smoothing choke in the D.C. circuit. A harmonic filter circuit 12, 13 may be provided. Specification 459,443 is referred to.
GB13375/37A 1936-05-12 1937-05-11 Regulating electric quantities in current converters Expired GB479990A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE479990X 1936-05-12

Publications (1)

Publication Number Publication Date
GB479990A true GB479990A (en) 1938-02-15

Family

ID=20310445

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13375/37A Expired GB479990A (en) 1936-05-12 1937-05-11 Regulating electric quantities in current converters

Country Status (1)

Country Link
GB (1) GB479990A (en)

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