[go: up one dir, main page]

GB1051411A - - Google Patents

Info

Publication number
GB1051411A
GB1051411A GB378264A GB378264A GB1051411A GB 1051411 A GB1051411 A GB 1051411A GB 378264 A GB378264 A GB 378264A GB 378264 A GB378264 A GB 378264A GB 1051411 A GB1051411 A GB 1051411A
Authority
GB
United Kingdom
Prior art keywords
arrangement
thyristor
inverter
capacitor
thyristors
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
GB378264A
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
Priority claimed from DE1963L0044030 external-priority patent/DE1413516A1/en
Application filed filed Critical
Publication of GB1051411A publication Critical patent/GB1051411A/en
Expired legal-status Critical Current

Links

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
    • 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
    • H02M7/51—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 discharge tubes only
    • 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
    • H02M7/525—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 automatic control of output waveform or frequency
    • 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
    • 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
    • H02P27/047—V/F converter, wherein the voltage is controlled proportionally with the frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Ac Motors In General (AREA)
  • Inverter Devices (AREA)
  • Control Of Multiple Motors (AREA)

Abstract

1,051,411. Inverting; control of A.C. motors. LICENTIA PATENT-VERWALTUNGSG.m.b.H. Jan. 29. 1964 [Jan. 30, 1963; March 27, 1963], No. 3782/64. Headings H2F and H2J. The Specification relates to inverters whose output voltage and frequency can both be controlled, and is an improvement upon inverters of the type having an arrangement associated with each controllable element whereby the element can be turned off at a desired instant independently of the turning on of the next element in sequence. Such arrangements are used for induction or synchronous motor control (Fig. 1, not shown). An inverting arrangement comprises an inverter whose frequency is controllable but whose valves always have the maximum conduction angle (e.g. 120 degrees in a three-phase inverter) supplied from a D.C. source through a chopping arrangement comprising elements, such as thyristors with associated turn-off circuits, in one or both D.C. lines which operate at a higher frequency than the inverter and by varying their on-off ratio determine the input voltage to the inverter and hence the final alternating output voltage. The basic arrangement is shown in Fig. 2 in which battery Ug drives motor M through a three-phase inverter comprising thyristors 101 to 106. Feedback diodes and capacitors to aid commutation are connected as shown. Two methods of controlling the chopper elements are described. In Fig. 3 (not shown), which is a single-phase version of Fig. 2, one chopper element comprises a main thyristor 120 having in parallel with it the series combination of a further thyristor 122 and capacitor 121. When the main thyristor is not conducting the capacitor is charged through a diode and resistor connected in parallel with the further thyristor. To turn off the main thyristor the further thyristor is fired, so discharging the capacitor across the main thyristor to reverse bias it. In the arrangement of Fig. 4 (not shown), and Fig. 5, a bridge of thyristors switches a commutating capacitor across the D.C. lines. Free-wheeling diodes may be provided (Fig. 6, not shown).
GB378264A 1963-01-30 1964-01-29 Expired GB1051411A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1963L0044030 DE1413516A1 (en) 1963-01-30 1963-01-30 Self-guided pulse inverter
DEL0044475 1963-03-27

Publications (1)

Publication Number Publication Date
GB1051411A true GB1051411A (en) 1966-12-14

Family

ID=25985627

Family Applications (1)

Application Number Title Priority Date Filing Date
GB378264A Expired GB1051411A (en) 1963-01-30 1964-01-29

Country Status (3)

Country Link
CH (1) CH441498A (en)
FR (1) FR1381949A (en)
GB (1) GB1051411A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1257852A (en) * 1969-05-29 1971-12-22
DE2655077C3 (en) * 1976-12-04 1987-10-22 Indramat Gesellschaft für Industrie-Rationalisierung und Automatisierung mbH, 8770 Lohr Pulse width modulated four-quadrant DC/DC converter
DE2759294C2 (en) * 1977-02-24 1987-07-30 Mitsubishi Denki K.K., Tokio/Tokyo, Jp
DE2707988A1 (en) * 1977-02-24 1978-08-31 Mitsubishi Electric Corp Chopper circuit for feeding multiple independent loads - uses gate controlled turn-off thyristor to operate without need for special commutating circuits
DE2759293C2 (en) * 1977-02-24 1984-12-20 Mitsubishi Denki K.K., Tokio/Tokyo Static converter
CA1188727A (en) * 1981-10-19 1985-06-11 Dick L. Knox Motor variable frequency drive

Also Published As

Publication number Publication date
CH441498A (en) 1967-08-15
FR1381949A (en) 1964-12-14

Similar Documents

Publication Publication Date Title
US3075136A (en) Variable pulse width parallel inverters
US3363143A (en) Alternating current switching power contact with soft start and circuit protection
US3541358A (en) Solid state power circuits
US4039926A (en) Current fed inverter with commutation independent of load inductance
US3718847A (en) Adjustable speed polyphase a-c motor drive utilizing an in-phase current signal for motor control
US3619653A (en) Pulse generator for producing a synchronous pulse sequence with alternating voltage of adjustable phase angle
US4128793A (en) Power circuit for variable frequency, variable magnitude power conditioning system
GB1362849A (en) Static power conversion ciruit
GB1167566A (en) Method and Apparatus for Firing Inverters
US3474320A (en) Variable frequency and voltage electric power inverter utilizing an auxiliary source of fixed-magnitude commutating voltage
GB1254366A (en) Inverter circuit
US3718853A (en) Pulse width limiting means for inverter circuits
GB1051411A (en)
US3399336A (en) Inverter circuits with capacitor bridge commutator circuits
US4220989A (en) Polyphase variable frequency inverter with output voltage control
CA1082770A (en) Variable speed, constant frequency induction generator system
US3427526A (en) Inverter drive system
US3331011A (en) Inverter control means
US3579086A (en) Frequency conversion cycloconverter system for both single- and multi-phase applications
GB1370495A (en) Power switching means
US3176211A (en) Polyphase power source
US3461317A (en) Commutation scheme for power semiconductor circuits for limiting rate of reapplied voltage and current
GB1156828A (en) Improvements in or relating to Electrical Converter Circuits.
US3316427A (en) Phase shift gate drive circuit
GB1395743A (en) Conversion systems