Patent · US Expired

Electrical control systems

US4791309A · kind A · utility

9Cited by
11References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 28, 1987
Grant dateDec 13, 1988
Priority date
Expiry dateDec 28, 2007

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02E10/20
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A hydroelectric power system has a reservoir (prime mover) (17) driving an electrical generator (10) which supplies a consumer load (B) and an auxiliary load (14). A control system (11) operates control (15) for the prime mover, control (13) for the auxiliary load and/or control (12) for the consumer load in response to a signal from the generator (10) or some other source, so that the supply is stabilized so far as possible to a minimum. Normally no energy is dissipated in the auxiliary load, except during a control sequence.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.