Control system for hydroelectric power station system

Patent 4109160 Issued on August 22, 1978. Estimated Expiration Date:

August 11, 1996. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

2646812

2724082

3600595

Inventors

Application

No. 05/713579 filed on 08/11/1976

US Classes:

290/52, TURBOGENERATORS415/1, METHOD OF OPERATION415/17Plural diverse condition responsive (e.g., temperature and pressure, speed and level, etc.)

Examiners

Primary: Schaefer, Robert K.
Assistant: Redman, John W.

Attorney, Agent or Firm

Craig & Antonelli

International Classes

F03B 13/00 (20060101)
F03B 15/14 (20060101)
F03B 13/06 (20060101)
F03B 15/00 (20060101)

Foreign Application Priority Data

1975-08-13 JP

Abstract

In a control system for a hydroelectric power station system including upper and lower water reservoirs connected through a water channel, an intermediate water reservoir having a smaller storage capacity than those of the upper and lower reservoirs and provided on the water channel in cascade with the upper and lower reservoirs, and two power stations disposed between the upper and intermediate reservoirs and between the intermediate and lower reservoirs, respectively, the control system is arranged such that the water level of the intermediate reservoir is detected continuously and the detected value of the water level is used to correct the load instructions which are applied to the power stations for controlling outputs of the power stations whereby the water level of the intermediate reservoir is maintained substantially constant, while the power generation of the power stations is controlled so as to satisfactorily meet with the load instruction applied to the power system.