GB1374447A - Speed regulating circuits for linear motors - Google Patents

Speed regulating circuits for linear motors

Info

Publication number
GB1374447A
GB1374447A GB5255971A GB5255971A GB1374447A GB 1374447 A GB1374447 A GB 1374447A GB 5255971 A GB5255971 A GB 5255971A GB 5255971 A GB5255971 A GB 5255971A GB 1374447 A GB1374447 A GB 1374447A
Authority
GB
United Kingdom
Prior art keywords
stages
potentiometer
members
control
current
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.)
Expired
Application number
GB5255971A
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB1374447A publication Critical patent/GB1374447A/en
Expired 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
    • H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
    • H02P27/02—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using supply voltage with constant frequency and variable amplitude
    • H02P27/026—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using supply voltage with constant frequency and variable amplitude whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/002—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of propulsion for monorail vehicles, suspension vehicles or rack railways; for control of magnetic suspension or levitation for vehicles for propulsion purposes
    • B60L15/005—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of propulsion for monorail vehicles, suspension vehicles or rack railways; for control of magnetic suspension or levitation for vehicles for propulsion purposes for control of propulsion for vehicles propelled by linear motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00—Type of vehicles
    • B60L2200/26—Rail vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Control Of Linear Motors (AREA)

Abstract

1374447 Automatic control systems ROBERT BOSCH GmbH 12 Nov 1971 [16 Nov 1970] 52559/71 Heading G3R [Also in Division H2] A speed regulating circuit for a linear motor 11 having primary windings 12, 13, 14 and a secondary section formed by a rail 16 comprises thyristor switching stages 24, 25, 26 controlling the voltage applied from A.C. mains 17, 18, 19 to the windings 12, 13, 14, an eddy current brake 15 supplied from a phase of the mains through a thyristor switching stage 27, pulse control stages 30, 31 controlling the stages 24--27 and control stages 32, 33 which control the stages 30, 31 and are controlled by difference signals from comparison stages 35, 36 which respectively receive a reference signal from potentiometer 38 and a signal from tachogenerator 29 representing the speed of the motor, and a reference signal from potentiometer 37 and a signal from circuit members 28, 34 representative of the braking current. Members 37, 38 may be adjusted to produce two sets of characteristics relating motor'driving force and speed, each set being respectively obtained by variation of the voltage applied to the windings 12, 13, 14 and the current supplied to the brake 15, Fig.3 (not shown). Various ranges of operating speed corresponding to the selected characteristics may be obtained and a modification suitable for very low crawl speeds is described, Fig.2 (not shown) in which the stage 36 is supplied directly from the potentiometer 38 and from the tachogenerator 29 (members 28, 34 being omitted) and the stage 35 is supplied from a potentiometer (44) equivalent to potentiometer 37 and from a circuit (41, 42) sensing the voltage applied to the winding 12. Optimum control may be obtained by designing the stages 32, 33 as PID controllers, the circuit arrangement and operation of such a controller being described, Fig.4 (not shown). The members 37, 38 may be replaced by a single reference source common to both stages 32, 33 which are then designed so that the proportional share of the control characteristic is adjustable. Current transformer 28 may be replaced by a current-sensing resistor and main switches 20, 21, 22 provide for phase interchange to reverse the motor.
GB5255971A 1970-11-16 1971-11-12 Speed regulating circuits for linear motors Expired GB1374447A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702056227 DE2056227A1 (en) 1970-11-16 1970-11-16 Speed control circuit for a linear motor

Publications (1)

Publication Number Publication Date
GB1374447A true GB1374447A (en) 1974-11-20

Family

ID=5788185

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5255971A Expired GB1374447A (en) 1970-11-16 1971-11-12 Speed regulating circuits for linear motors

Country Status (6)

Country Link
AT (1) AT310879B (en)
CH (1) CH525585A (en)
DE (1) DE2056227A1 (en)
FR (1) FR2114498A5 (en)
GB (1) GB1374447A (en)
IT (1) IT941153B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH660173A5 (en) * 1982-05-03 1987-03-31 Inventio Ag Drive control for an elevator.

Also Published As

Publication number Publication date
IT941153B (en) 1973-03-01
CH525585A (en) 1972-07-15
AT310879B (en) 1973-10-25
DE2056227A1 (en) 1972-05-18
FR2114498A5 (en) 1972-06-30

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees