Today's power systems are undergoing dynamic changes in their operation.
The high cost of capital improvements that include new generation and transmission
projects has prompted power system planners to look for other alternatives in dealing
with increased loads and overall system growth. A dynamic braking resistor is a
device that allows for an increased rating of a transmission system's transient stability
limit. This allows increased power flows over existing transmission lines without the
need to build additional transmission facilities.
This thesis investigates the application of dynamically controlled resistive
braking in the Pacific Northwest power system. Specifically, possible control
alternatives, to replace the present dynamic brake control system at Chief Joseph
station, are examined. This examination includes determination of appropriate
locations for control system input, development of control algorithms, development of
computer and laboratory power system models, and testing and recommendations
based upon the developed control algorithms.