| dc.description.abstract | A synchronous generator is one of the important units in the hydropower plant that plays a
key role in the production of electricity. Much effort has been done for designing more
accurate models of synchronous machines over the years. Here, a possible extension of the
existing description of the synchronous generator model presented in Lie (2019) was carried
out. First, a complete mathematical model of a synchronous generator is presented, and
thereafter the model is connected to the waterway system including turbine and grid.
Different behavior of the models was observed through simulation by using the open-source
program OpenModelica.
The dq0 and phase space model of a synchronous generator was compared and the dq0
model was found to be stable than phase space. When large mechanical power was applied,
synchronism was lost, and it was discovered that field voltage could be increased to regain
synchronism. The frictional loss was also introduced to the model, and the results were
found to be as expected. | |
