Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – With indicator or control of power plant
Patent
1997-10-22
2000-08-01
Zanelli, Michael J.
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
With indicator or control of power plant
702182, F02C 900
Patent
active
060980095
ABSTRACT:
A method of controlling turbomachines is specified, a characteristic signal, in particular a performance signal, normally being fed to the controller as a controlled variable, but this performance signal, together with a number of further signals significant of the performance from the plant circuit, forming a signal set in a comparison and selection unit, and the signals from this signal set being compared with one another. The maximum selection among the signals, formed at the same time in the comparison and selection unit 2.1, yields the signal of the controlled variable that is forwarded to the controller 1.1. In addition, monitoring as to whether the performance signal is the maximum signal is performed. In addition, a device for controlling turbomachines according to the method is specified, which device has a control loop 1 for the output of actuating signals for control devices of the plant, the control loop 1 being preceded by a monitoring loop 2 that has a comparison and selection unit 2.1, to which, apart from the performance signal of the control loop 1, at least one further signal significant of the performance is additionally applied, and all these applied signals form a signal set. The comparison and selection unit 2.1 determines the maximum signal from these signal set and the said maximum signal is applied as input signal to a controller 1.1 of the control loop 1 in place of the direct performance signal.
REFERENCES:
patent: 4228650 (1980-10-01), Camp
patent: 4410950 (1983-10-01), Toyoda et al.
patent: 4891948 (1990-01-01), Kure-Jensen et al.
patent: 5757641 (1998-05-01), Minto
ABB Alstom Power (Switzerland) Ltd
Zanelli Michael J.
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