It has been a standing problem among the scientists of the past and will perhaps be puzzled-over for many centuries to come; namely the most efficient method of transmitting power from one point to another. The nearest solution at present, and a very satisfactory one, is electricity. By means of...
This thesis comprises a series of tests run on a compound direct current generator and an induction motor; separately and combined as a set, with sheets of data; characteristic and efficiency curves and deduction drawn therefrom relative to the two machines.
Since this treatise is to deal only with the
construction of one special machine it is unnecessary
to go into an extended discussion of dynamo electric
machinery in general. Some of the parts common to all
electric machinery of this character will be mentioned
and then a short account of...
Real-time predictive voltage control of a direct-current (d-c)
generating system is achieved with the aid of a hybrid computer.
Some assumptions were required to adequately simplify the simulation
of the d-c generating system.
A predictive controller is used to maintain the load voltage of
the d-c generating system (the controlled...
A system consisting of two d-c generators, one exiting the other,
is controlled with an EAI 690 hybrid computer in an on-line operation.
The hybrid computer works as a predictive controller with an on-off
actuating signal. A fast-time, second-order model is used to determine
the switching time, and a small...
A highly flexible numerical simulation model for the performance
prediction of brushless dc drives is presented, which is capable of
investigating unbalanced and asymmetrical operating conditions as well
as drives with non-ideal parameters. Numerical speed-up procedures
allow for the investigation of pulse-width modulated (PWM) drives using
a personal computer. Experimental...
A project funded by the Southern California Edison (SCE) Company, Research
Center of Irwindale, California, has supported the development of a performance and
parameter prediction software program for use during the refurbishment of large
synchronous machines, turbine generators, and synchronous condensers. The computer
program was developed for SCE to allow...
The world’s energy consumption is growing at an alarming rate and the need for renewable energy is apparent now more than ever. Estimates have shown that optimization of the extraction of energy from the ocean could significantly aid the world’s quest for sustainable and affordable energy services for all. From...
Wave energy conversion devices are a rapidly growing interest worldwide for the potential to harness a sustainable and renewable energy source. Due to the oscillatory nature of ocean waves, the power generated from a permanent magnet linear generator (PMLG) for ocean wave energy conversion is pulsed. Focusing on direct drive...
An AC/AC converter has been designed and implemented for the purpose of
providing a modular drive system with a Brushless Doubly-Fed Machine (BDFM.) This
converter is to be used in laboratory testing and also as part of a demonstration system in
the field.
All hardware needed to start and run...