Question: A speed control system using fluid flow components is to be designed. The system is a pure fluid control system because it does not have

A speed control system using fluid flow components is to be designed. The system is a pure fluid control system because it does not have any moving mechanical parts. The fluid may be a gas or a liquid. A system is desired that maintains the speed within 0.5% of the desired speed by using a tuning fork reference and a valve actuator. Fluid control systems are insensitive and reliable over a wide range of temperature, electromagnetic and nuclear radiation, acceleration, and vibration. The amplification within the system is achieved by using a fluid jet deflection amplifier. The system can be designed for a 500-kW steam turbine with a speed of 12,000 rpm. The block diagram of the system is shown in Figure P3.9. In dimensionless units, we have b = 0.1, J = 1, and K1 = 0.5.
(a) Determine the closed-loop transfer function
T(s) = w(s) / R(s)
(b) Determine a state variable representation.
(c) Determine the characteristic equation obtained from the A matrix.
Figure P3.9
Steam turbine control.

Valve Disturbance actuato Filter Turbine RIs) 10 Speed relcreniCe Tuning fork and error derecior

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