JPS56139005A - High power factor operation system for ac electric motor vehicle - Google Patents

High power factor operation system for ac electric motor vehicle

Info

Publication number
JPS56139005A
JPS56139005A JP4030080A JP4030080A JPS56139005A JP S56139005 A JPS56139005 A JP S56139005A JP 4030080 A JP4030080 A JP 4030080A JP 4030080 A JP4030080 A JP 4030080A JP S56139005 A JPS56139005 A JP S56139005A
Authority
JP
Japan
Prior art keywords
power factor
current
high power
priority
produces
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
JP4030080A
Other languages
Japanese (ja)
Other versions
JPS6130482B2 (en
Inventor
Yoshio Kawashima
Katsutada 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.)
Toyo Electric Manufacturing Ltd
Original Assignee
Toyo Electric Manufacturing 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 Toyo Electric Manufacturing Ltd filed Critical Toyo Electric Manufacturing Ltd
Priority to JP4030080A priority Critical patent/JPS56139005A/en
Publication of JPS56139005A publication Critical patent/JPS56139005A/en
Publication of JPS6130482B2 publication Critical patent/JPS6130482B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Electric Propulsion And Braking For Vehicles (AREA)
  • Control Of Direct Current Motors (AREA)

Abstract

PURPOSE: To enable the operation of an AC electric motor vehicle in high power factor by automatically economizing the field of the motor after a thyristor converter for the armature current is fully conducted to become the maximum power factor.
CONSTITUTION: An amplifier 2 produces a deviation signal between a command value from an armature current instructing unit 1 and an armature current detected by a current detector 5 to a thyristor converter 3 for the armature current. A priority circuit 11 decices the priority between the signal inverted in polarity from the output of the amplifier 2 by a polarity inverter 12 and a command value from a field current instructingunit 6 and produces the priority. An amplfier 7 produces a deviation signal between the output from the priority circuit 11 and the field current detected by the current detector 10 to a thyristor converter 8 for the field current. Thus, it can operate the vehicle in high power factor without necessity of external means such as a phase advance capacitor or the like.
COPYRIGHT: (C)1981,JPO&Japio
JP4030080A 1980-03-31 1980-03-31 High power factor operation system for ac electric motor vehicle Granted JPS56139005A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4030080A JPS56139005A (en) 1980-03-31 1980-03-31 High power factor operation system for ac electric motor vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4030080A JPS56139005A (en) 1980-03-31 1980-03-31 High power factor operation system for ac electric motor vehicle

Publications (2)

Publication Number Publication Date
JPS56139005A true JPS56139005A (en) 1981-10-30
JPS6130482B2 JPS6130482B2 (en) 1986-07-14

Family

ID=12576755

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4030080A Granted JPS56139005A (en) 1980-03-31 1980-03-31 High power factor operation system for ac electric motor vehicle

Country Status (1)

Country Link
JP (1) JPS56139005A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991008121A1 (en) * 1989-11-30 1991-06-13 Marathon Letourneau Company Method and apparatus for propelling and retarding off-road haulers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991008121A1 (en) * 1989-11-30 1991-06-13 Marathon Letourneau Company Method and apparatus for propelling and retarding off-road haulers
US5103923A (en) * 1989-11-30 1992-04-14 Marathon Letourneau Company Method and apparatus for propelling and retarding off-road haulers
US5351775A (en) * 1989-11-30 1994-10-04 Marathon Letourneau Company Method for propelling and retarding off-road haulers

Also Published As

Publication number Publication date
JPS6130482B2 (en) 1986-07-14

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