IT1263155B - CURRENT LIMITATION CIRCUIT FOR ELECTRIC MOTORS - Google Patents

CURRENT LIMITATION CIRCUIT FOR ELECTRIC MOTORS

Info

Publication number
IT1263155B
IT1263155B ITMI930194A ITMI930194A IT1263155B IT 1263155 B IT1263155 B IT 1263155B IT MI930194 A ITMI930194 A IT MI930194A IT MI930194 A ITMI930194 A IT MI930194A IT 1263155 B IT1263155 B IT 1263155B
Authority
IT
Italy
Prior art keywords
current
circuit element
power circuit
electric motors
current limitation
Prior art date
Application number
ITMI930194A
Other languages
Italian (it)
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 filed Critical
Publication of ITMI930194A0 publication Critical patent/ITMI930194A0/en
Publication of ITMI930194A1 publication Critical patent/ITMI930194A1/en
Application granted granted Critical
Publication of IT1263155B publication Critical patent/IT1263155B/en

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
    • H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
    • H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
    • H02P1/163—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual reluctance motor
    • 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
    • H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
    • H02P25/08—Reluctance motors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor And Converter Starters (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

L'invenzione concerne un circuito di limitazione della corrente per motori elettrici pilotati elettronicamente, in specie una limitazione della corrente di avviamento, laddove la corrente dello statore del motore circolante attraverso un elemento circuitale di potenza (20) viene limitata in modo tale che, in particolare durante l'avviamento si presentano tempi di commutazione dell'elemento circuitale di potenza (20) soltanto così brevi che la corrente del motore, in senso contrario alla sua resistenza induttiva, raggiunge soltanto un'intensità di corrente tale che non vengono con sicurezza superati prefissati valori limite di potenza dell'elemento circuitale di potenza (20). Secondo l'invenzione è previsto a questo scopo un circuito di temporizzazione (50-58, 70), che determina in modo preferito l'istante di inserimento dell'elemento circuitale di potenza (20). Per il circuitoThe invention concerns a current limiting circuit for electronically controlled electric motors, in particular a limitation of the starting current, where the stator current of the motor circulating through a power circuit element (20) is limited in such a way that, in in particular, during start-up, switching times of the power circuit element (20) occur only so short that the motor current, in the opposite direction to its inductive resistance, only reaches a current intensity such that they are not surely exceeded predetermined power limit values of the power circuit element (20). According to the invention, a timing circuit (50-58, 70) is provided for this purpose, which preferably determines the instant of insertion of the power circuit element (20). For the circuit

ITMI930194A 1992-02-15 1993-02-05 CURRENT LIMITATION CIRCUIT FOR ELECTRIC MOTORS IT1263155B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4204645A DE4204645A1 (en) 1992-02-15 1992-02-15 Current limiting circuit for electromotors - has light source, rotor-mounted shutter disk and phototransistor triggering RC circuit discharge to limit stator current duration

Publications (3)

Publication Number Publication Date
ITMI930194A0 ITMI930194A0 (en) 1993-02-05
ITMI930194A1 ITMI930194A1 (en) 1994-08-05
IT1263155B true IT1263155B (en) 1996-08-01

Family

ID=6451861

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI930194A IT1263155B (en) 1992-02-15 1993-02-05 CURRENT LIMITATION CIRCUIT FOR ELECTRIC MOTORS

Country Status (2)

Country Link
DE (1) DE4204645A1 (en)
IT (1) IT1263155B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU6708900A (en) 1999-08-17 2001-03-13 Black & Decker Incorporated Electrical machines

Also Published As

Publication number Publication date
DE4204645A1 (en) 1993-08-19
ITMI930194A1 (en) 1994-08-05
ITMI930194A0 (en) 1993-02-05

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970221