Title :
Prospects for the decentralised control of small-scale power networks with embedded generation
Author :
Dudgeon, G.J.W. ; Leithead, W.E. ; O´Reilly, J. ; McDonald, J.R.
Author_Institution :
Strathclyde Univ., Glasgow, UK
Abstract :
The control of a small-scale power network incorporating four generators is investigated in this paper. The small-signal dynamic characteristics and control system performance are assessed using individual channel analysis and design (ICAD). ICAD is motivated through the need to understand the effect of system interaction on both the control design task and robustness. System interaction on individual transmissions is explicitly considered through the use of multivariable structure functions which, although scalar, encapsulate the multivariable nature of the system. The strength of such an approach is that highly successful single-input single-output classical control techniques such as Nyquist/Bode can be used without loss of multivariable information. For the example network, ICAD enables the design of the individual controllers to be performed independently of one another and determines that the effect of system interaction is not detrimental to network stability. It therefore potentially provides a strong platform for consideration of large-scale networks with embedded generation. Finally, the ICAD network control analysis and design is corroborated by nonlinear dynamic simulation running in PSS/E
Keywords :
decentralised control; electric power generation; multivariable control systems; power system control; robust control; Bode technique; Nyquist technique; PSS/E; control design task; control system performance; decentralised control; embedded generation; individual channel analysis and design; multivariable information loss; multivariable nature; multivariable structure functions; nonlinear dynamic simulation; robustness; single-input single-output classical control; small-scale power networks; small-signal dynamic characteristics; Control design; Control systems; Distributed control; Large-scale systems; Nonlinear dynamical systems; Performance analysis; Power generation; Robust control; Stability; System performance;
Conference_Titel :
Power Engineering Society Winter Meeting, 2000. IEEE
Print_ISBN :
0-7803-5935-6
DOI :
10.1109/PESW.2000.850172