Title :
Identification and optimal output control of a laboratory power system
Author :
Abdalla, O.H. ; Walker, P.A.W.
Author_Institution :
University of Liverpool, Department of Electrical Engineering and Electronics, Liverpool, UK
fDate :
11/1/1980 12:00:00 AM
Abstract :
The paper describes the design of an optimal controller, based on output feedback, to provide integrated control of the exciter and prime mover of micro-synchronous-generator. Modelling of the control input-output measurement dynamics of the power system by an output prediction equation using least-squares analysis, is followed by multivariable control-system design based on discrete dynamic programmiing to minimise a quadratic performance index. This approach avoids any reference to the system state vector, which may contain states which are difficult to measure, and thus any need for state estimation techniques or the omission of unmeasurable states from the state feedback control law. The paper evaluates the effectiveness of this controller over a wide range of operating conditions, including dynamic and transient stability boundaries and 3-phase faults, with and without permanent line outage.
Keywords :
control system synthesis; dynamic programming; feedback; identification; multivariable control systems; optimal control; power system control; stability; synchronous generators; 3-phase faults; design; discrete dynamic programming; dynamics; exciter; identification; integrated control; laboratory power system; least squares analysis; micro synchronous generator; multivariable control systems; optimal controller; output feedback; output prediction equation; permanent line outage; prime mover; quadratic performance index; stability;
Journal_Title :
Control Theory and Applications, IEE Proceedings D
Conference_Location :
11/1/1980 12:00:00 AM
DOI :
10.1049/ip-d:19800040