Title :
Optimal control via piecewise constant functions with different time-interval-application to synchronous machine control
Author :
Su, Ching-Tzong ; Hsu, Meng-Che
Author_Institution :
Inst. of Electr. Eng., Nat. Chung Chen Univ., Taiwan, China
Abstract :
A controller of the synchronous generator represented by a third order model is studied in this paper. In addition to the base case, transient responses for the other cases with different constraints, operating conditions, and disturbances are discussed. Results demonstrate that the feedback gains obtained from the base case are still applicable to the other cases, and the controlling performance is quite satisfactory. The transient response of only conventional terminal voltage feedback is also computed for comparison. In this research, state and control parametrization approach using piecewise constant functions with different time-interval is proposed. With the parametrization, the optimal control model is first formulated as algebraic equations. Then, the algebraic equations are solved using the nonlinear programming technique
Keywords :
feedback; machine control; nonlinear control systems; optimal control; piecewise constant techniques; synchronous generators; transient response; algebraic equations; feedback gains; nonlinear programming technique; optimal control; piecewise-constant functions; synchronous generator; synchronous machine control; terminal voltage feedback; third-order model; time-interval; transient responses; Control systems; Machine windings; Nonlinear control systems; Nonlinear equations; Optimal control; Power system control; Power system modeling; Power system stability; Stator windings; Voltage;
Conference_Titel :
Industrial Technology, 1994., Proceedings of the IEEE International Conference on
Conference_Location :
Guangzhou
Print_ISBN :
0-7803-1978-8
DOI :
10.1109/ICIT.1994.467168
