AU5496586A - Creación de Inventos y Patentes con Inteligencia Artificial

AU5496586A – Method and apparatus for controlling the motor speed of an electric AC motor and method of determining torque
– Google Patents

AU5496586A – Method and apparatus for controlling the motor speed of an electric AC motor and method of determining torque
– Google Patents
Method and apparatus for controlling the motor speed of an electric AC motor and method of determining torque

Info

Publication number
AU5496586A

AU5496586A
AU54965/86A
AU5496586A
AU5496586A
AU 5496586 A
AU5496586 A
AU 5496586A
AU 54965/86 A
AU54965/86 A
AU 54965/86A
AU 5496586 A
AU5496586 A
AU 5496586A
AU 5496586 A
AU5496586 A
AU 5496586A
Authority
AU
Australia
Prior art keywords
motor
frequency
inverter
controlling
input
Prior art date
1985-03-21
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
AU54965/86A
Other versions

AU594667B2
(en

Inventor
John Talbot Boys
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.)

University of Auckland

Original Assignee
University of Auckland
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.)
1985-03-21
Filing date
1986-03-20
Publication date
1986-09-25

1986-03-20
Application filed by University of Auckland
filed
Critical
University of Auckland

1986-09-25
Publication of AU5496586A
publication
Critical
patent/AU5496586A/en

1990-03-15
Application granted
granted
Critical

1990-03-15
Publication of AU594667B2
publication
Critical
patent/AU594667B2/en

2006-03-20
Anticipated expiration
legal-status
Critical

Status
Ceased
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

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

Abstract

This application discloses a method and apparatus for controlling both the motor terminal voltage and motor terminal current to vary in exact proportion as the motor shaft torque varies for any given excitation frequency. This obviates the need for ancillary motor speed control and prevents voltage boosting at low speeds from resulting in excessive motor losses for no load conditions. A motor 5 is powered from an inverter 4, the inverter providing an output voltage with independent control of amplitude and frequency. A frequency signal is fed directly to the inverter from a frequency input, the frequency input also being connected to a multiplier 3. The multiplier provides the amplitude signal for the inverter 4 based onthe product of the input frequency and motor current.

AU54965/86A
1985-03-21
1986-03-20
Method and apparatus for controlling the motor speed of an electric AC motor and method of determining torque

Ceased

AU594667B2
(en)

Applications Claiming Priority (2)

Application Number
Priority Date
Filing Date
Title

NZ211523

1985-03-21

NZ211523A

NZ211523A
(en)

1985-03-21
1985-03-21
Motor speed control by frequency dependent signal

Publications (2)

Publication Number
Publication Date

AU5496586A
true

AU5496586A
(en)

1986-09-25

AU594667B2

AU594667B2
(en)

1990-03-15

Family
ID=19921140
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

AU54965/86A
Ceased

AU594667B2
(en)

1985-03-21
1986-03-20
Method and apparatus for controlling the motor speed of an electric AC motor and method of determining torque

Country Status (7)

Country
Link

US
(1)

US4881022A
(en)

EP
(1)

EP0196846B1
(en)

AT
(1)

ATE52886T1
(en)

AU
(1)

AU594667B2
(en)

CA
(1)

CA1288464C
(en)

DE
(1)

DE3671345D1
(en)

NZ
(1)

NZ211523A
(en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

NZ211523A
(en)

1985-03-21
1990-03-27
Univ Auckland
Motor speed control by frequency dependent signal

FI981186A
(en)

1998-05-28
1999-11-29
Stenman Ulf Haakan

New immunoassay method and its use in diagnostics

US20030070544A1
(en)

2001-10-15
2003-04-17
Hamilton Beach/Proctor-Silex, Inc.
System and method for determining filter condition

EP1501186B1
(en)

2003-07-18
2018-08-22
III Holdings 10, LLC
Motor driving apparatus

EP1607563A1
(en)

2004-05-28
2005-12-21
Cardo Door Ab
Drive unit and method for temperature regulation of the transmission in a building door arrangement

US20070024224A1
(en)

2005-07-26
2007-02-01
Mcdonald Raymond G
kW-based torque control for AC motors

NZ545664A
(en)

2006-02-28
2008-07-31
Auckland Uniservices Ltd
Single phase power supply for inductively coupled power transfer systems

GB2530293B
(en)

2014-09-17
2017-08-02
Nidec Control Techniques Ltd
Method of controlling a power output of an inverter drive

US10840707B2
(en)

2018-08-06
2020-11-17
Robert M. Lyden
Utility pole with solar modules and wireless device and method of retrofitting existing utility pole

US11207988B2
(en)

2018-08-06
2021-12-28
Robert M. Lyden
Electric or hybrid vehicle with wireless device and method of supplying electromagnetic energy to vehicle

US11588421B1
(en)

2019-08-15
2023-02-21
Robert M. Lyden
Receiver device of energy from the earth and its atmosphere

Family Cites Families (5)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

DE2361339C3
(en)

1973-12-08
1985-05-30
Brown, Boveri & Cie Ag, 6800 Mannheim

Arrangement for controlling the torque of an asynchronous machine

US3909687A
(en)

1974-03-05
1975-09-30
Westinghouse Electric Corp
Flux control system for controlled induction motors

US3989991A
(en)

1974-10-03
1976-11-02
Westinghouse Electric Corporation
Method and circuit for the derivation of an analog slip frequency signal of an induction motor in a tachometerless motor drive

US4443750A
(en)

1980-04-30
1984-04-17
Zero-Max Industries, Incorporated
Energy saving motor speed controller

NZ211523A
(en)

1985-03-21
1990-03-27
Univ Auckland
Motor speed control by frequency dependent signal

1985

1985-03-21
NZ
NZ211523A
patent/NZ211523A/en
unknown

1986

1986-03-20
AU
AU54965/86A
patent/AU594667B2/en
not_active
Ceased

1986-03-21
CA
CA000504782A
patent/CA1288464C/en
not_active
Expired – Lifetime

1986-03-21
AT
AT86302131T
patent/ATE52886T1/en
not_active
IP Right Cessation

1986-03-21
EP
EP86302131A
patent/EP0196846B1/en
not_active
Expired – Lifetime

1986-03-21
DE
DE8686302131T
patent/DE3671345D1/en
not_active
Expired – Lifetime

1988

1988-05-10
US
US07/191,711
patent/US4881022A/en
not_active
Expired – Fee Related

Also Published As

Publication number
Publication date

EP0196846B1
(en)

1990-05-16

ATE52886T1
(en)

1990-06-15

EP0196846A1
(en)

1986-10-08

NZ211523A
(en)

1990-03-27

CA1288464C
(en)

1991-09-03

US4881022A
(en)

1989-11-14

DE3671345D1
(en)

1990-06-21

AU594667B2
(en)

1990-03-15

Información de contacto