JPS566694A - Control method for constant output of thyristor motor - Google Patents

Control method for constant output of thyristor motor

Info

Publication number
JPS566694A
JPS566694A JP7960579A JP7960579A JPS566694A JP S566694 A JPS566694 A JP S566694A JP 7960579 A JP7960579 A JP 7960579A JP 7960579 A JP7960579 A JP 7960579A JP S566694 A JPS566694 A JP S566694A
Authority
JP
Japan
Prior art keywords
speed
terminal voltage
control
base speed
range
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.)
Granted
Application number
JP7960579A
Other languages
Japanese (ja)
Other versions
JPS6160677B2 (en
Inventor
Keiji Saito
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP7960579A priority Critical patent/JPS566694A/en
Publication of JPS566694A publication Critical patent/JPS566694A/en
Publication of JPS6160677B2 publication Critical patent/JPS6160677B2/ja
Granted legal-status Critical Current

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
    • 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
    • H02P25/022—Synchronous motors
    • H02P25/03—Synchronous motors with brushless excitation

Landscapes

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

Abstract

PURPOSE:To enable control with less torque ripple and less iron loss and with no commutation overlap angle decrease, by performing lead angle control and field weakening control in an entire range from a base speed to a rated maximum speed. CONSTITUTION:In a range from the stoppage to the base speed of a synchronous motor 5 driven by an inverter 4, the field current If is kept constant and the terminal voltage Et is raised in proportion to the velocity. In that range, a control lead angle beta, a commutation margin angle gamma and a commutation overlap angle u are constant and an output P increases with the rise in the velocity and reaches a prescribed level at the base speed. As soon as the base speed is exceeded, field weakening control is started. In an entire range from the base speed to a rated maximum speed, the field current If of the synchronous motor 5 is gradually decreased, the rising rate of the terminal voltage Et is made smaller than that of the revolution speed and the terminal voltage Et is linearly changed so that the terminal voltage reaches a set level at the rated maximum speed.
JP7960579A 1979-06-26 1979-06-26 Control method for constant output of thyristor motor Granted JPS566694A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7960579A JPS566694A (en) 1979-06-26 1979-06-26 Control method for constant output of thyristor motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7960579A JPS566694A (en) 1979-06-26 1979-06-26 Control method for constant output of thyristor motor

Publications (2)

Publication Number Publication Date
JPS566694A true JPS566694A (en) 1981-01-23
JPS6160677B2 JPS6160677B2 (en) 1986-12-22

Family

ID=13694639

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7960579A Granted JPS566694A (en) 1979-06-26 1979-06-26 Control method for constant output of thyristor motor

Country Status (1)

Country Link
JP (1) JPS566694A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996037946A1 (en) * 1995-05-26 1996-11-28 Klaus Kranert Power converter drive

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
INDUSTRY APPLICATIONS SOCIETY=1978 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996037946A1 (en) * 1995-05-26 1996-11-28 Klaus Kranert Power converter drive

Also Published As

Publication number Publication date
JPS6160677B2 (en) 1986-12-22

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