Water level regulating system

A water level regulating system controlling the water level of a head tank of each of a plurality of hydroelectric plant installed in cascade along a stream by using an opening of guide vanes of a hydraulic turbine as a manipulated variable, and the water level of the head tank as a controlled varia...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	TAKEDA, KENZO, KUROTANI, KENICHI
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CONTROL OR REGULATING SYSTEMS IN GENERAL CONTROLLING FUNCTIONAL ELEMENTS OF SUCH SYSTEMS HEATING LIGHTING MACHINES OR ENGINES FOR LIQUIDS MECHANICAL ENGINEERING MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR PHYSICS PRODUCING MECHANICAL POWER REGULATING SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES WEAPONS WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A water level regulating system controlling the water level of a head tank of each of a plurality of hydroelectric plant installed in cascade along a stream by using an opening of guide vanes of a hydraulic turbine as a manipulated variable, and the water level of the head tank as a controlled variable. Each hydroelectric plant has a water level regulator constituting the water level regulating system. Each of the water level regulator of an upstream hydroelectric plant and the water level regulator of a downstream hydroelectric plant has a device varying PID parameters for controlling the water level in accordance with the opening of the guide vanes, and a device varying a reference water level to a set water level. The downstream water level regulator further includes a feedforward compensating element which compensates a feedforward signal corresponding to the opening of the guide vanes of the upstream hydroelectric plant, and which varies its compensation characteristic by the opening of the guide vanes of the downstream hydroelectric plant.