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AssigneeAisin Seiki Kabushiki Kaisha
InventorsPeter H. Birch, Takeshi Ikeyama, Anthony D. Wearing, Mark G. Norton
Estimating the term…
A gas turbine engine driven auxiliary electric power unit which includes a turbine (9), an air compressor (7) for supplying compressed air to the turbine and driven by the turbine, fuel supplying means (2) for supplying gaseous fuel to the turbine, a generator (10) driven by the turbine for generating electrical output power which is fed to a main electric user supply (14), first detecting means (15) for monitoring turbine shaft speed, second detecting means (19) for monitoring the output power of the generator, first modulating means (16,18,13) for modulating the turbine shaft speed to cause it to coincide with a predetermined shaft speed (17) by means of controlling current flow from the generator to the main electric user supply, and second modulating means (20,22,23) for modulating the flow of gaseous fuel which is supplied from the fuel supplying means to the turbine so as to cause the monitored output power to coincide with a predetermined output power (21).
A gas turbine engine driven auxiliary electric power unit comprising:
A power unit according to any preceding claim, wherein the generator is an alternator and the first modulating means comprises a rectifier for rectifying output power of the generator, a first comparator for comparing the monitored turbine shaft speed with the predetermined shaft speed, a first compensator for compensating an output signal of the first comparator and power electronics for controlling the rectified output power current flow which is fed to the main electric user supply in response to a compensation signal from the first compensator.
Dependencies are inferred from the claim text.