Digital control of a shipboard turbogenerator.
Hatcher, William Lloyd III
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This thesis reports on a study involving the simulation and control of a shipboard generating system (1000KW) . The first part of the paper deals with the simulation of the existing system which includes a steam turbine, synchronous generator, voltage regulator and governor. Data on the system was obtained from the various manufacturers involved. Several simulations were made using different ways of modeling a synchronous machine that have been proposed in the literature, and their computational requirements compared. The models were comparable in the level of physical detail being represented and all were found to agree quite closely with test results. The second part of the thesis reports on an attempt to control the system using a digital computer directly in the control loops. The simulation was repeated with the turbine and generator modeled as indicated above, while the voltage regulator and governor functions were implemented using relatively simple algorithms. For the degree of control needed in the shipboard environment these algorithms proved to be reasonably efficient and to give good results.
This thesis document was issued under the authority of another institution, not NPS. At the time it was written, a copy was added to the NPS Library Collection for reasons not now known. It has been included in the digital archive for its historical value to NPS. Not believed to be a CIVINS (Civilian Institutions) title.
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