Title:
AUTOMATIC FREQUENCY CONTROLLER FOR MOTOR DRIVEN GENERATOR
Document Type and Number:
Japanese Patent JPS5914399
Kind Code:
A
Abstract:
PURPOSE:To enhance the reliability of a motor driven generator by providing two rising and falling set input circuits which can alter the set values only when a contact is closed. CONSTITUTION:Control gate circuits 24a, 24b open gates only while an operation switch 21 or 22 is operated or while the frequency increase or decrease signal of an automatic synchronous energizing unit 18 or an effective power sharing unit 20 is generating, and a pulse from a pulse generator 23 is transmitted to a pulse integration and subtraction counter 25. The integrated value of the counter 25 is converted by a digital-to-analog converter 26 to an analog voltage value. A deviation amplifier 10 controls the phase of a thyristor 13 in response to the deviation between the output of a frequency/voltage converter 6 representing the output frequency of a generator 3 and the output voltage of the converter 26. In this manner, the state immediately after the disconnection of the cable can be maintained even at the time when the cable is disconnected.
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Inventors:
TAZAKI AKINORI
MORIOKA KOUJI
MORIOKA KOUJI
Application Number:
JP12422782A
Publication Date:
January 25, 1984
Filing Date:
July 14, 1982
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
H02P9/30; H02P9/00; H02P9/06; H02P9/14; (IPC1-7): H02P9/14
Domestic Patent References:
| JPS48102504U | 1973-12-01 | |||
| JPS5482912U | 1979-06-12 | |||
| JPS5140221A | 1976-04-03 |
Attorney, Agent or Firm:
Mamoru Takada (1 person outside)
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