TW218376B - A variable speed winch having accurate speed control - Google Patents

A variable speed winch having accurate speed control

Info

Publication number
TW218376B
TW218376B TW081110424A TW81110424A TW218376B TW 218376 B TW218376 B TW 218376B TW 081110424 A TW081110424 A TW 081110424A TW 81110424 A TW81110424 A TW 81110424A TW 218376 B TW218376 B TW 218376B
Authority
TW
Taiwan
Prior art keywords
speed
winch
variable
motor
frequency
Prior art date
Application number
TW081110424A
Other languages
English (en)
Inventor
Nakamura Youfi
Original Assignee
Mitsubishi Electric Corp
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
Priority claimed from JP28689792A external-priority patent/JP3147199B2/ja
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Application granted granted Critical
Publication of TW218376B publication Critical patent/TW218376B/zh

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
    • H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
    • H02P23/14—Estimation or adaptation of motor parameters, e.g. rotor time constant, flux, speed, current or voltage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/28—Other constructional details
    • B66D1/40—Control devices
    • B66D1/48—Control devices automatic
    • B66D1/485—Control devices automatic electrical
    • 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
    • H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
    • H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Ac Motors In General (AREA)
  • Control And Safety Of Cranes (AREA)
TW081110424A 1992-10-01 1992-12-29 A variable speed winch having accurate speed control TW218376B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP28689792A JP3147199B2 (ja) 1992-01-23 1992-10-01 共吊用可変速巻上装置

Publications (1)

Publication Number Publication Date
TW218376B true TW218376B (en) 1994-01-01

Family

ID=17710419

Family Applications (1)

Application Number Title Priority Date Filing Date
TW081110424A TW218376B (en) 1992-10-01 1992-12-29 A variable speed winch having accurate speed control

Country Status (2)

Country Link
KR (1) KR970003820B1 (zh)
TW (1) TW218376B (zh)

Also Published As

Publication number Publication date
KR940009052A (ko) 1994-05-16
KR970003820B1 (ko) 1997-03-22

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees