The design and operation of a completely automatic trigger
circuit is presented. This circuit differs from conventional trigger
circuits in that manual control adjustments are not necessary. It
will automatically provide stable triggering over a wide range of
trigger signal amplitudes, repetition rates and waveshapes. The circuit
consists of three...
The model-reference, adaptive control concept is based on the
precept that desired control system performance is a known design
requirement and can be obtained from a representative model. Control
system parameters are adjusted by the adaptive controller through a
minimizing operation on a function of the error (i.e., performance
index)...
The work in this thesis solves the problem of restoring a power
system to its operating stable equilibrium point, following a transient
disturbance, in minimum time without any oscillation. The idealized
power system considered consists of cylindrical rotor generator connected
to an infinite busbar with the following cases of control:...
For many applications it is desirable to be able to experimentally determine the impulse response of a linear system while it is in operation. Use of correlation techniques allows this to be done
without noticeably disturbing the quiescent output value of the system.
An impulse response measurement apparatus is designed...
The Motor Systems Resource Facility (MSRF) at Oregon State University presently conducts a variety of steady state tests on Motors and Generators, with ratings of upto 300Hp.(225kW), using a dynamometer. The dynamometer consists of an induction motor fed by a power electronic converter. A control computer uses a serial link,...
This thesis presents both an analysis and simulations of a passively controlled variable-speed generator system, which can be applied for renewable energy sources such as wind turbines. Parallel connected passive/external resistors and inductors are connected to the slip rings of a wound rotor induction machine to provide an acceptable speed...
