Title:
【発明の名称】水車ガイドベーン制御装置
Document Type and Number:
Japanese Patent JP2737202
Kind Code:
B2
Abstract:
PURPOSE:To evade a head loss corresponding to a trailing width by providing a programmable controller having a self-tuning function to controllingly calculate a deviation between a head tank water level measured value and a reference water level set value. CONSTITUTION:A programmable controller 801 having the self-tuning function executes, for example, the PID control calculation of the deviation between a measured value H of a water level sensor 6 of a head tank 1 and a reference water level set value H0, and a opening degree set value G0 of a guide vane is transmitted as the operation output. A pulse width output controller 802 executes, for example, the PI calculation of the deviation between a measured value G of a guide vane opening degree sensor 7 and the opening degree set value G0 of the guide vane, an operation output PW given with a pulse width signal is supplied to a guide vane operating mechanism of a turbine 3, and the opening degree is operated. Thus, the head loss to be caused while adjusting a trailing rate can be evaded.
Inventors:
YANO TAKAHIRO
Application Number:
JP2161789A
Publication Date:
April 08, 1998
Filing Date:
January 31, 1989
Export Citation:
Assignee:
YOKOGAWA DENKI KK
International Classes:
G05D9/12; F03B15/14; (IPC1-7): F03B15/14
Domestic Patent References:
| JP61226573A | ||||
| JP61232385A |
Attorney, Agent or Firm:
Masayasu Watanabe