CONTROL SYSTEM AND A METHOD OF CONTROLLING A TCSC IN AN ELECTRICAL TRANSMISSION NETWORK, IN PARTICULAR BY AN APPROACH USING SLIDING MODES
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United States of America Patent
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Issued Date -
Nov 18, 2010
app pub date -
Apr 22, 2008
filing date -
Apr 24, 2007
priority date (Note) -
Abandoned
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Abstract
A system and method of controlling a TCSC disposed on a high voltage line of an electrical transmission network. The system comprises: (a) a voltage measuring module; (b) a current measuring module; (c) a regulator, working in accordance with a non-linear control law to receive on its input the output signals from the two modules for measuring voltage and current, and a reference voltage corresponding to the fundamental of the voltage which is to obtained across the TCSC; (d) a module for extracting the control angle in accordance with an extraction algorithm; and (e) a module for controlling the thyristors (T1, T2) of the TCSC, and for receiving a zero current reference delivered by a phase-locked loop which gives the position of the current.
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