With deregulation of the power industry, many tie lines between control areas are driven to operate near their maximum capacity, especially those serving heavy load centers. Wide area control systems (WACSs) using wide-area or global signals can provide remote auxiliary control signals to local controllers such as automatic voltage regulators, power system stabilizers, etc to damp out inter-area oscillations. This paper presents the design and the DSP implementation of a nonlinear optimal wide area controller based on adaptive critic designs and neural networks for a power system on the real-time digital simulator (RTDS©). The performance of the WACS as a power system stability agent is studied using the Kundur''s two area power system example. The WACS provides better damping of power system oscillations under small and large disturbances even with the inclusion of local power system stabilizers.

Meeting Name

40th IAS Annual Meeting of the Industry Applications Conference, 2005


Electrical and Computer Engineering

Keywords and Phrases

DSP Implementation; Adaptive Critic Designs; Automatic Voltage Regulators; Damping; Digital Signal Processing; Digital Signal Processing Chips; Digital Simulation; Electricity Supply Industry Deregulation; Heuristic Dynamic Programming; Inter-Area Oscillation; Neural Nets; Neural Network; Nonlinear Control Systems; Optimal Control; Optimal Wide Area Control; Oscillations; Power Industry Deregulation; Power System Control; Power System Oscillation; Power System Simulation; Power System Stability; Power System Stabilizers; Programming; Real-Time Digital Simulator; Real-Time Systems; Remote Auxiliary Control; Voltage Regulators; Wide Area Control System

International Standard Serial Number (ISSN)


Document Type

Article - Conference proceedings

Document Version

Final Version

File Type





© 2005 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

Publication Date

01 Jan 2005