GB1394771A - Electric inverters - Google Patents

Electric inverters

Info

Publication number
GB1394771A
GB1394771A GB1980273A GB1980273A GB1394771A GB 1394771 A GB1394771 A GB 1394771A GB 1980273 A GB1980273 A GB 1980273A GB 1980273 A GB1980273 A GB 1980273A GB 1394771 A GB1394771 A GB 1394771A
Authority
GB
United Kingdom
Prior art keywords
capacitor
controlled rectifiers
bridge
commutating
inductor
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
GB1980273A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1980273A priority Critical patent/GB1394771A/en
Publication of GB1394771A publication Critical patent/GB1394771A/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
    • H02M7/42—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
    • H02M7/505—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 thyratron or thyristor type requiring extinguishing means
    • H02M7/515—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 thyratron or thyristor type requiring extinguishing means using semiconductor devices only
    • H02M7/5152—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 thyratron or thyristor type requiring extinguishing means using semiconductor devices only with separate extinguishing means
    • H02M7/5155—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 thyratron or thyristor type requiring extinguishing means using semiconductor devices only with separate extinguishing means wherein each commutation element has its own extinguishing means

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)

Abstract

1394771 Inverting J I GROM and V G YATSUK 26 April 1973 19802/73 Heading H2F In an inverter comprising a three-phase bridge of controlled rectifiers 1 ... 6 and inverse diodes 7 ... 12 having a commutation capacitor 19 connected across a further bridge of controlled rectifiers 21 ... 24 and having three pairs of anti-parallel controlled rectifiers 13 ... 17 for discharging the commutating capacitor 19 via an inductor 20 across the main controlled rectifiers 1 ... 6, a diode bridge 28 ... 31 is connected across the commutating capacitor 19 and arranged to prevent capacitor 19 recharging to excessive voltage. In the arrangement shown, excessive energy of capacitor 19 is passed via the appropriate ones of diodes 28 ... 31 and diode 26 into an electrolytic capacitor 27 connected across an auxiliary supply Un. In Figs. 3 and 4 (not shown) the D.C. sides of the diode bridge 28 ... 31 are connected across a blocking oscillator arranged to trigger a triac (35) so as to bridge the commutating inductor via a resistor when capacitor 19 begins to charge to an excess voltage. In Fig. 4 (not shown) the commutating inductor is formed by a pair of inductors connected between controlled rectifiers 32 and 33 each being bridged by an auxiliary controlled rectifier turned on by the blocking oscillator when capacitor 19 begins to charge to excessive voltage. The commutaton is described in some detail with the aid of waveforms.
GB1980273A 1973-04-26 1973-04-26 Electric inverters Expired GB1394771A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1980273A GB1394771A (en) 1973-04-26 1973-04-26 Electric inverters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1980273A GB1394771A (en) 1973-04-26 1973-04-26 Electric inverters

Publications (1)

Publication Number Publication Date
GB1394771A true GB1394771A (en) 1975-05-21

Family

ID=10135474

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1980273A Expired GB1394771A (en) 1973-04-26 1973-04-26 Electric inverters

Country Status (1)

Country Link
GB (1) GB1394771A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees