Optimal Wide-area Monitoring and Nonlinear Adaptive Coordinating Neurocontrol of a Power System with Wind Power Integration and Multiple FACTS Devices


Wide-area coordinating control is becoming an important issue and a challenging problem in the power industry. This paper proposes a novel optimal wide-area coordinating neurocontrol (WACNC), based on wide-area measurements, for a power system with power system stabilizers, a large wind farm and multiple flexible ac transmission system (FACTS) devices. An optimal wide-area monitor (OWAM), which is a radial basis function neural network (RBFNN), is designed to identify the input-output dynamics of the nonlinear power system. Its parameters are optimized through particle swarm optimization (PSO). Based on the OWAM, the WACNC is then designed by using the dual heuristic programming (DHP) method and RBFNNs, while considering the effect of signal transmission delays. The WACNC operates at a global level to coordinate the actions of local power system controllers. Each local controller communicates with the WACNC, receives remote control signals from the WACNC to enhance its dynamic performance and therefore helps improve system-wide dynamic and transient performance. The proposed control is verified by simulation studies on a multimachine power system.


Electrical and Computer Engineering


National Science Foundation (U.S.)

Keywords and Phrases

FACTS Devices; Adaptive Critic Designs; Particle Swarm Optimization; Radial Basis Function Network; Wide-Area Control; Wind Power

International Standard Serial Number (ISSN)


Document Type

Article - Journal

Document Version


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© 2008 Elsevier, All rights reserved.

Publication Date

01 Apr 2008