GB8413856D0 - Square-wave speed control - Google Patents

Square-wave speed control

Info

Publication number
GB8413856D0
GB8413856D0 GB848413856A GB8413856A GB8413856D0 GB 8413856 D0 GB8413856 D0 GB 8413856D0 GB 848413856 A GB848413856 A GB 848413856A GB 8413856 A GB8413856 A GB 8413856A GB 8413856 D0 GB8413856 D0 GB 8413856D0
Authority
GB
United Kingdom
Prior art keywords
square
speed control
wave speed
wave
control
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.)
Granted
Application number
GB848413856A
Other versions
GB2142194A (en
GB2142194B (en
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.)
STMicroelectronics SRL
Original Assignee
ATES Componenti Elettronici SpA
SGS ATES Componenti Elettronici SpA
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 ATES Componenti Elettronici SpA, SGS ATES Componenti Elettronici SpA filed Critical ATES Componenti Elettronici SpA
Publication of GB8413856D0 publication Critical patent/GB8413856D0/en
Publication of GB2142194A publication Critical patent/GB2142194A/en
Application granted granted Critical
Publication of GB2142194B publication Critical patent/GB2142194B/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
    • H02P27/08—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 with pulse width modulation
    • 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
    • H02M7/527—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 by pulse width modulation
    • 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
    • H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
    • H02P29/50—Reduction of harmonics
GB08413856A 1983-06-22 1984-05-31 Speed control with pulse modulation and regulation of the voltage effective value for three-phase asynchronous motor Expired GB2142194B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8321731A IT1212754B (en) 1983-06-22 1983-06-22 SQUARE WAVE SPEED CONTROL WITH PULSE MODULATION AND REGULATION OF THE EFFECTIVE VOLTAGE VALUE FOR ASYNCHRONOUS THREE-PHASE MOTOR.

Publications (3)

Publication Number Publication Date
GB8413856D0 true GB8413856D0 (en) 1984-07-04
GB2142194A GB2142194A (en) 1985-01-09
GB2142194B GB2142194B (en) 1987-02-11

Family

ID=11186061

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08413856A Expired GB2142194B (en) 1983-06-22 1984-05-31 Speed control with pulse modulation and regulation of the voltage effective value for three-phase asynchronous motor

Country Status (3)

Country Link
DE (1) DE3420948A1 (en)
GB (1) GB2142194B (en)
IT (1) IT1212754B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4763059A (en) * 1987-06-23 1988-08-09 General Electric Company Method and apparatus for induction motor drive
IT1271195B (en) * 1994-06-24 1997-05-27 Finmeccanica Spa SWITCHING TECHNIQUE FROM SINE-TO-SQUARE MODULATION FOR THREE-PHASE MOTOR SUPPLY BY INVERTER AND RELATED SWITCHING SYSTEM
DE19519369A1 (en) * 1995-05-26 1996-11-28 Philips Patentverwaltung Circuit arrangement for feeding a load

Also Published As

Publication number Publication date
IT1212754B (en) 1989-11-30
IT8321731A0 (en) 1983-06-22
GB2142194A (en) 1985-01-09
GB2142194B (en) 1987-02-11
DE3420948A1 (en) 1985-01-03

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20020531