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Summary: 1
Abstract--This paper presents a robust approach to real time
detection of faults in the load-frequency control loop of
interconnected power systems. The detection of faults takes place
under different operating conditions, in the presence of modeling
uncertainties, unknown changes in the load demand and other
external disturbances, such as plant and sensor noise. Although
the approach is applicable to N-area systems, a two-area
interconnected power system example is considered for
simplicity.
Index Terms--Load-frequency Control, Power Systems,
Robust Fault Detection.
I. INTRODUCTION
oad-frequency control is essential for successful
operation of power systems, especially interconnected
power systems. Without it the frequency of power supply
may not be able to be controlled within the required limit
band. It is therefore very important that when a fault occurs in
the control loop it is detected and identified in real time so that
immediate remedial actions can be undertaken.
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