A CONTROL SYSTEM AND A METHOD OF CONTROLLING OF A TCSC IN AN ELECTRICAL TRANSMISSION NETWORK,USING IN PARTICULAR AN APPROACH OF THE LYAPUNOV TYPE

摘要

The invention relates to a system and method of controlling a TCSC disposed on a high voltage line (40) of an electrical transmission network. The system comprises: • a voltage measuring module (41); • a current measuring module (42); • a regulator (43), 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; • a module (44) for extracting the control angle in accordance with an extraction algorithm; and • a module (45) for controlling the thyristors (Tl, T2) of the TCSC, and for receiving a zero current reference delivered by a phase-locked loop which gives the position of the current (46).