RO115315B1 - Starter and automatic speed control system for phase-wound rotor asynchronous motor - Google Patents

Starter and automatic speed control system for phase-wound rotor asynchronous motor

Info

Publication number
RO115315B1
RO115315B1 RO98-00390A RO9800390A RO115315B1 RO 115315 B1 RO115315 B1 RO 115315B1 RO 9800390 A RO9800390 A RO 9800390A RO 115315 B1 RO115315 B1 RO 115315B1
Authority
RO
Romania
Prior art keywords
phase
asynchronous motor
control
speed control
starter
Prior art date
Application number
RO98-00390A
Other languages
Romanian (ro)
Inventor
Gh. Gheorghe Stănescu
Original Assignee
Gh. Gheorghe Stănescu
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 Gh. Gheorghe Stănescu filed Critical Gh. Gheorghe Stănescu
Priority to RO98-00390A priority Critical patent/RO115315B1/en
Publication of RO115315B1 publication Critical patent/RO115315B1/en

Links

Abstract

The invention relates to a starter and automatic speed control system for phase wound rotor asynchronous motors, comprising an electric power equipment consisting in a symmetrical three-plase bridge rectifier (3), connected to the rotor phases of an asynchronous motor (1) through coils (2), a stabilized D.C.voltage intermediary circuit connected to the three-phase bridge reversible rectifier (7), the system also comprising an automatic control equipment consisting of a voltage regulator (14), amplifiers (15, 16, 17) which supply imposed values (i*, i*, i*) comparable with the measured values (i R, i S, i T ) of the rotor currents, signals being obtained at the output of the hysteresis comparators (18, 19, 20), said signals synthetized in a control grid device (21) will control the static switches of the bridge rectifier (3), the asynchronous motor (1) speed control (n) being performed by comparison with an imposed value (n *), in a speed regulator (22), by limiting the continuous current in the intermediary circuit to an imposed value ( i C *), by means of a current regulator (23) which actuates a control grid device (24) for controlling the thyristors of the three-phase bridge reversible rectifier (7) which is connected to the network phases through an adapter transformer (8) which permits the recovery of the slide energy into the network.
RO98-00390A 1998-02-25 1998-02-25 Starter and automatic speed control system for phase-wound rotor asynchronous motor RO115315B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO98-00390A RO115315B1 (en) 1998-02-25 1998-02-25 Starter and automatic speed control system for phase-wound rotor asynchronous motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO98-00390A RO115315B1 (en) 1998-02-25 1998-02-25 Starter and automatic speed control system for phase-wound rotor asynchronous motor

Publications (1)

Publication Number Publication Date
RO115315B1 true RO115315B1 (en) 1999-12-30

Family

ID=64357366

Family Applications (1)

Application Number Title Priority Date Filing Date
RO98-00390A RO115315B1 (en) 1998-02-25 1998-02-25 Starter and automatic speed control system for phase-wound rotor asynchronous motor

Country Status (1)

Country Link
RO (1) RO115315B1 (en)

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