Real-Time Implementation of an Optimal Transient Neurocontroller for a GCSC

This paper presents the design of an optimal auxiliary transient neurocontroller (ATNC) for the gate controlled series capacitor (GCSC) in a multi-machine power system. GCSC is a recent advancement in the family of series FACTS devices. While GCSC regulates power flow through a transmission line, an auxiliary control signal can provide damping to the power oscillations during disturbances. The ATNC has been designed using heuristic dynamic programming to develop an optimal neurocontroller with fixed weights. The ATNC is implemented in real-time using the TMS3206701 DSP and the real-time digital simulator (RTDS). Results are presented to show the effectiveness of the ATNC in damping transient oscillations during disturbances.