Helper drive apparatus for turbine drive system

Details Helper drive apparatus for turbine drive system Helper drive apparatus for turbine drive system

1987-08-20

1988-09-20

Ostrager, Allen M.

Power plants

System having plural motors or having diverse types of...

Having condition responsive control

60706, F01B 2104

Patent

active

047716061

ABSTRACT:
A helper drive apparatus for a turbine drive system in which a load is mainly driven by a turbine and a helper motor is used for assisting the drive for the load, comprising: a turbine control circuit, coupled to the turbine, for controlling output power of the turbine in accordance with a turbine power reference signal; a motor control circuit, coupled to the helper motor, for controlling output power of the helper motor in accordance with a motor power reference signal; a speed control means, coupled to the turbine, for detecting a difference between a given speed reference signal and a speed signal indicating an operation speed of the turbine, and providing a master power reference signal representing the difference; and a power sharing ratio control circuit, coupled to the speed control circuit, turbine control circuit, and motor control circuit, and being responsive to a given power sharing instruction signal, for sharing the master power reference signal to the turbine power reference signal and the motor power reference signal such that a ratio between the turbine power reference signal and the motor power reference signal depends on a value of the given power sharing instruction signal.

REFERENCES:
patent: 4137721 (1979-02-01), Glennon et al.
patent: 4580402 (1986-04-01), Firey
patent: 4721861 (1988-01-01), Saito et al.

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