SE8602200D0 - PROCEDURE FOR DETERMINING CIRCUIT TIMES IN CIRCUIT-FREE ANTI-PARALLEL CONNECTED CIRCUITS IN A CIRCUIT DRIVER - Google Patents

PROCEDURE FOR DETERMINING CIRCUIT TIMES IN CIRCUIT-FREE ANTI-PARALLEL CONNECTED CIRCUITS IN A CIRCUIT DRIVER

Info

Publication number
SE8602200D0
SE8602200D0 SE8602200A SE8602200A SE8602200D0 SE 8602200 D0 SE8602200 D0 SE 8602200D0 SE 8602200 A SE8602200 A SE 8602200A SE 8602200 A SE8602200 A SE 8602200A SE 8602200 D0 SE8602200 D0 SE 8602200D0
Authority
SE
Sweden
Prior art keywords
circuit
over
currents
free
determining
Prior art date
Application number
SE8602200A
Other languages
Swedish (sv)
Other versions
SE8602200L (en
Inventor
E Golde
Original Assignee
Licentia Gmbh
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 Licentia Gmbh filed Critical Licentia Gmbh
Publication of SE8602200D0 publication Critical patent/SE8602200D0/en
Publication of SE8602200L publication Critical patent/SE8602200L/en

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
    • H02M7/53—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 triode or transistor type requiring continuous application of a control signal
    • H02M7/537—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 triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • H02M7/5387—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 triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
    • H02M7/53871—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 triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration with automatic control of output voltage or current
    • H02M7/53873—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 triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration with automatic control of output voltage or current with digital control
    • 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
    • H02M7/529—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 using digital control

Landscapes

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

Abstract

A method of determining the switch-over instants of static converters, which are connected in parallel opposition and free of circular currents, of a multiphase controlled inverter feeding asynchronous motors at variable frequency in four-quadrant operation, serves to ensure that a correctly timed switching-over of the converters takes place without having to take into account the operating frequency during a smoothing of the current measurement value. For this purpose the Fourier transforms of the fundamental oscillation of the currents are formed in component form from the temporal courses of the individual currents of the multiphase system with the use of auxiliary magnitudes, which are of constant amplitude and free of harmonic oscillations, as multiplier function. Subsequently, the Fourier transforms of the fundamental current oscillations of all phases are added separately according to the active and the reactive components. The quotient of the temporally smoothed sum values or its arc tagent is compared with the running time angles and the switching-over of the parallel opposition circuit is initiated at each instant of the equality. <IMAGE>
SE8602200A 1985-06-28 1986-05-14 PROCEDURE FOR DETERMINING CIRCUIT TIMES IN CIRCUIT-FREE ANTI-PARALLEL CONNECTED CIRCUITS IN A CIRCUIT DRIVER SE8602200L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19853523659 DE3523659A1 (en) 1985-06-28 1985-06-28 METHOD FOR DETERMINING THE SWITCHING TIMES OF CIRCUIT-FREE ANTI-PARALLEL-SWITCHED CONVERTERS OF A CONTROL CONVERTER

Publications (2)

Publication Number Publication Date
SE8602200D0 true SE8602200D0 (en) 1986-05-14
SE8602200L SE8602200L (en) 1986-12-29

Family

ID=6274764

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8602200A SE8602200L (en) 1985-06-28 1986-05-14 PROCEDURE FOR DETERMINING CIRCUIT TIMES IN CIRCUIT-FREE ANTI-PARALLEL CONNECTED CIRCUITS IN A CIRCUIT DRIVER

Country Status (5)

Country Link
AT (1) ATA173386A (en)
DE (1) DE3523659A1 (en)
GB (1) GB2176952B (en)
IT (1) IT1204408B (en)
SE (1) SE8602200L (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3710899C1 (en) * 1987-04-01 1988-10-27 Licentia Gmbh Process for producing the torque-controlled variable of an asynchronous machine supplied power via a pulse rectifier

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2509177C3 (en) * 1975-03-03 1978-12-14 Siemens Ag, 1000 Berlin Und 8000 Muenchen Circuit arrangement with three converters with single-phase AC voltage output

Also Published As

Publication number Publication date
DE3523659A1 (en) 1987-01-08
SE8602200L (en) 1986-12-29
IT1204408B (en) 1989-03-01
GB2176952B (en) 1989-07-12
IT8620895A0 (en) 1986-06-24
DE3523659C2 (en) 1987-09-24
GB2176952A (en) 1987-01-07
ATA173386A (en) 1989-03-15
GB8614916D0 (en) 1986-07-23

Similar Documents

Publication Publication Date Title
Taniguchi et al. PWM technique for power MOSFET inverter
KR920013914A (en) Method and apparatus for eliminating or reducing harmonics and / or resonant vibrations
KR880002315A (en) Speed control of electric motor
Kastha et al. On-line search based pulsating torque compensation of a fault mode single-phase variable frequency induction motor drive
US4008421A (en) Methods and apparatus for speed-control of induction motors
KR870009532A (en) Inverter DC Power Supply
Kim et al. An algebraic algorithm for microcomputer-based (direct) inverter pulsewidth modulation
Jacovides Analysis of induction motor drives with a nonsinusoidal supply voltage using Fourier analysis
KR890004589B1 (en) Frequency converter apparatus
JPS63500700A (en) Improved modulation method and apparatus for static power frequency converters
SE8602200L (en) PROCEDURE FOR DETERMINING CIRCUIT TIMES IN CIRCUIT-FREE ANTI-PARALLEL CONNECTED CIRCUITS IN A CIRCUIT DRIVER
Krause et al. Analysis and simplified representations of rectifier-inverter reluctance-synchronous motor drives
Addoweesh et al. Induction motor speed control using a microprocessor-based PWM inverter
JPH1189219A (en) Circuit arrangement for supply from trunk line of energy source to load of single phase or polyphase
JPS54158629A (en) Controlling device of thyristor motor
El-Bolok A microprocessor-based firing circuit for thyristors working under a three-phase variable-frequency supply
JP2781602B2 (en) Power converter control device and system thereof
JPH0447554B2 (en)
JPS5442712A (en) Electric car controlling system
JPH08105921A (en) Ac voltage detecting circuit
KR940019050A (en) Inverter Control Unit
JP2002058251A (en) Control apparatus for power converter
JPS58154390A (en) Controller for linear synchronous motor
Dunford et al. Harmonic imbalance in asynchronous PWM schemes
US3213347A (en) Solid state inverter

Legal Events

Date Code Title Description
NAV Patent application has lapsed

Ref document number: 8602200-1

Effective date: 19901201