Title:
GATE FIRING CONTROL SYSTEM OF THYRISTOR CONVERTER
Document Type and Number:
Japanese Patent JPS60197158
Kind Code:
A
Abstract:
PURPOSE:To perform a rapid response to a current by leading the control delay angle this time by the prescribed angle when the difference of the control delay angles between this time and previous time is larger than the prescribed angle, and then leading the remaining angle without calculation. CONSTITUTION:Firing signals to thyristors 1-6 are output from gate firing output circuit 8, the voltage and current of controlled amount are input through an A/D converter 7 to a microprocessor 9, the control delay angle is calculated by the signal and a current command from a current command generator 10 to decide the gate firing timing this time. In this case, if the control delay angle this time is led more than the angle (60 deg.-theta0) or larger than the delay angle of this time, the control delay angle this time is led by the certain decided angle, and the remaining leading angle is led after next time without calculating the control delay angle.
Inventors:
HORIKIRI JIYUNICHI
SAWAMURA MITSUJIROU
SAWAMURA MITSUJIROU
Application Number:
JP5283284A
Publication Date:
October 05, 1985
Filing Date:
March 19, 1984
Export Citation:
Assignee:
YASKAWA DENKI SEISAKUSHO KK
International Classes:
H02M1/084; (IPC1-7): H02M1/084
Domestic Patent References:
| JPS59213278A | 1984-12-03 |
Attorney, Agent or Firm:
Kobori Masashi