Title:
CONTROLLING METHOD FOR WATER LEVEL OF WATER CHANNEL SYSTEM OF POWER STATION
Document Type and Number:
Japanese Patent JPH02143311
Kind Code:
A
Abstract:
PURPOSE:To realize stable water level control by controlling water channel system by obtaining a control pulse corresponding to a target value set at a water level regulating device according to the water level of one of the regulating poundages of the water channel system and the flow rate of another power station. CONSTITUTION:It is decided whether the quantity of water is in a overflowing direction or a lacking direction by calculation from the flow rate of an upstream side power station 1 and the water levels of the regulating poundages 5,6 at one place, and when it is decided to be in the dangerous water level direction of either of them, a pulse condition is changed. Then, the water channel system is controlled stably to prevent the overflow of water from a surge tank 4 or the regulating poundages 5,6 or to prevent the suction of air from penstocks 7 to 10 by taking a measure such as to adjust the gain of control system or the like. Thus, the water level of the whole water channel system can be easily and surely controlled stably.
Inventors:
SANNOMIYA YASUNORI
Application Number:
JP29635788A
Publication Date:
June 01, 1990
Filing Date:
November 25, 1988
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
G05D9/12; (IPC1-7): G05D9/12
Attorney, Agent or Firm:
Hiroaki Tazawa (2 outside)