FR2389898A1 - - Google Patents

Info

Publication number
FR2389898A1
FR2389898A1 FR7813381A FR7813381A FR2389898A1 FR 2389898 A1 FR2389898 A1 FR 2389898A1 FR 7813381 A FR7813381 A FR 7813381A FR 7813381 A FR7813381 A FR 7813381A FR 2389898 A1 FR2389898 A1 FR 2389898A1
Authority
FR
France
Prior art keywords
motor
voltage
variations
load
output signal
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.)
Withdrawn
Application number
FR7813381A
Other languages
English (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.)
EL FI INNOVATIONER AB
Original Assignee
EL FI INNOVATIONER AB
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 EL FI INNOVATIONER AB filed Critical EL FI INNOVATIONER AB
Publication of FR2389898A1 publication Critical patent/FR2389898A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R25/00—Arrangements for measuring phase angle between a voltage and a current or between voltages or currents
    • 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
    • H02P29/40—Regulating or controlling the amount of current drawn or delivered by the motor for controlling the mechanical load

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Ac Motors In General (AREA)
  • Control Of Multiple Motors (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

L'invention concerne les moteurs électriques. Appareil fournissant un signal dont l'amplitude est significative de la charge d'un moteur alternatif. Deux diodes en circuit antiparallèle fournissent deux signaux alternatifs d'amplitude constante, en relation de phase fixe avec le courant du moteur et la tension du moteur, respectivement. On obtient un signal indicatif de charge à l'aide d'un comparateur de phase auquel ces deux signaux sont fournis. Un redresseur fournit une tension continue proportionnelle à la tension d'alimentation du moteur, et cette tension continue est combinée au signal de sortie du comparateur de phase pour Compenser les variations du signal de sortie qui dépendent des variations de la tension d'alimentation. Application particulière : contrôle des moteurs asynchrones.
FR7813381A 1977-05-06 1978-05-05 Withdrawn FR2389898A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/794,688 US4117408A (en) 1977-05-06 1977-05-06 Apparatus for indicating the loading of an electric ac motor

Publications (1)

Publication Number Publication Date
FR2389898A1 true FR2389898A1 (fr) 1978-12-01

Family

ID=25163361

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7813381A Withdrawn FR2389898A1 (fr) 1977-05-06 1978-05-05

Country Status (5)

Country Link
US (1) US4117408A (fr)
BE (1) BE866762A (fr)
ES (1) ES469487A1 (fr)
FR (1) FR2389898A1 (fr)
NL (1) NL7804932A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0401442A1 (fr) * 1988-06-08 1990-12-12 Arex Electronics Corporation Appareil de réglage automatique du facteur de puissance d'une charge inductive

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6042717B2 (ja) * 1980-04-22 1985-09-24 三菱電機株式会社 誘導電動機用電力制御装置
US4355274A (en) * 1980-09-08 1982-10-19 Bourbeau Frank J Load responsive control system for constant speed induction motor
US4482852A (en) * 1981-06-24 1984-11-13 Westinghouse Electric Corp. Motor slip controller for AC motors
US4420787A (en) * 1981-12-03 1983-12-13 Spring Valley Associates Inc. Water pump protector
US4629960A (en) * 1984-12-11 1986-12-16 Energy Motor Control, Inc. Induction motor controller
AU569646B2 (en) * 1984-12-18 1988-02-11 Toshiba, Kabushiki Kaisha Detecting critical rotation speed of an induction motor
USRE33874E (en) * 1986-05-22 1992-04-07 Franklin Electric Co., Inc. Electric motor load sensing system
US4841404A (en) * 1987-10-07 1989-06-20 Spring Valley Associates, Inc. Pump and electric motor protector
US4885655A (en) * 1987-10-07 1989-12-05 Spring Valley Associates, Inc. Water pump protector unit
US4972289A (en) * 1987-10-07 1990-11-20 Spring Valley Associates Electric motor control and protective assembly for fluid pump operation
FR2629918B1 (fr) * 1988-04-11 1990-08-17 Schlumberger Ind Sa Indicateur de la difference de phase de composantes sinusoidales de deux signaux eventuellement deformes par un filtrage non lineaire
FR2678375B1 (fr) * 1991-06-27 1997-01-24 Thomson Csf Procede et dispositif de mesure d'efforts lies au vent sur un systeme tournant.
DE4440449C2 (de) 1994-11-14 1997-06-12 Elero Antrieb Sonnenschutz Verfahren und Vorrichtung zur Stillstandssteuerung von elektromotorisch betriebenen Rolläden oder dergleichen
DE102021200269A1 (de) * 2021-01-13 2022-07-14 Brose Fahrzeugteile Se & Co. Kommanditgesellschaft, Bamberg Verfahren zum Betrieb einer Ladeklappe eines Kraftfahrzeugs

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3465256A (en) * 1967-05-16 1969-09-02 Honeywell Inc Shaft position indicator circuit for a synchro-transmitter
US3588710A (en) * 1968-08-05 1971-06-28 Westinghouse Electric Corp Digital phase detection circuitry
US3619750A (en) * 1969-10-06 1971-11-09 Reliance Electric Co Speed compensation motor circuit utilizing real current component
US3753063A (en) * 1972-06-13 1973-08-14 Gen Electric Stabilizing means for an a-c motor drive
US3872388A (en) * 1972-08-31 1975-03-18 Bendix Corp Resolver to DC converter
US4041361A (en) * 1975-10-14 1977-08-09 General Electric Company Constant torque induction motor drive system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0401442A1 (fr) * 1988-06-08 1990-12-12 Arex Electronics Corporation Appareil de réglage automatique du facteur de puissance d'une charge inductive

Also Published As

Publication number Publication date
US4117408A (en) 1978-09-26
NL7804932A (nl) 1978-11-08
ES469487A1 (es) 1979-03-16
BE866762A (fr) 1978-09-01

Similar Documents

Publication Publication Date Title
FR2389898A1 (fr)
KR880014722A (ko) 충전발전기의 전압조정장치
FR2391001A1 (fr) Generateur d'ultra-sons
EP0038854A1 (fr) Commande transistorisee pour le moteur-generateur d'une machine a souder.
FR2422472A1 (fr) Dispositif de soudure a courant continu
USRE41015E1 (en) Bicycle battery charger and speedometer circuit
EP0834983A3 (fr) Dispositif de mesure de courants dans un ondulateur
FR2368173A1 (fr) Alimentation en puissance
FR2431617A1 (fr) Circuit d'allumage a decharge de condensateur, a alimentation par magneto et a regulation de tension
FR2306563A1 (fr) Regulateur de puissance fournissant une tension de sortie efficace en fonction d'un courant continu non stabilise
KR890014202A (ko) 콘덴서형 용접 전원장치
JPS56132181A (en) Standby braking circuit for power conversion device for electric motor operation at variable speed
FR2457590A1 (fr) Procede de bobinage pour une generatrice electrique et alternateur realise conformement a ce procede
JPH0448160Y2 (fr)
FR2357092A1 (fr) Dispositif d'alimentation de filtres de courant
ATE15847T1 (de) Einrichtung zur korrektur der von einem frequenzwandler gelieferten wechselspannung zur speisung eines asynchron- oder synchronmotors.
FR2382128A1 (fr) Convertisseur continu/alternatif pour alimenter une charge reactive
FR2470973A1 (fr) Dispositif de determination du couple fourni par un moteur electrique asynchrone
JPS57198136A (en) Luminous device and lighting device using said luminous device
FR2342602A1 (fr) Circuit dans un dispositif de reproduction d'images et comportant des moyens pour engendrer un courant de deviation et convertir une tension continue d'entree en une tension continue d'alimentation de sortie pratiquement constante
SU636767A1 (ru) Регул тор напр жени дл электромашинного генератора переменного тока
DE68913644D1 (de) Verfahren und Vorrichtung zur Triggerung eines elektronischen Schaltnetzteiles durch das Netzwerk.
FR2437027A1 (fr) Perfectionnements des regulateurs de tension applicables aux points de redressement de courant alternatif
SU783920A1 (ru) Способ управлени симистором
FR2417206A1 (fr) Circuit redresseur de courant alternatif en courant continu sur deux alternances

Legal Events

Date Code Title Description
ST Notification of lapse