TY - GEN
T1 - A novel zero dynamics design method and its application to hydraulic turbine governor
AU - Mei, Shengwei
AU - Zheng, Shaoming
AU - Wang, Peng
PY - 2009
Y1 - 2009
N2 - Based on differential geometric control theory, this work proposes a novel zero dynamics design method for a class of nonlinear non-minimum phase systems, which using dynamic feedback to the controlled system to obtain stable zero dynamics through dimension extension. Nonlinear control law is then derived by means of the linear control design method. Furthermore, both the optimality of the control law and the closed-loop system's stability are mathematically and strictly proved using HJB equation and centre manifold theory respectively. A nonlinear optimal governor controller is also proposed on the foundation of ideal hydraulic turbine model. The simulation results show that the novel governor control strategy for hydraulic turbines could enhance transient stability of power systems more effectively than the conventional control law.
AB - Based on differential geometric control theory, this work proposes a novel zero dynamics design method for a class of nonlinear non-minimum phase systems, which using dynamic feedback to the controlled system to obtain stable zero dynamics through dimension extension. Nonlinear control law is then derived by means of the linear control design method. Furthermore, both the optimality of the control law and the closed-loop system's stability are mathematically and strictly proved using HJB equation and centre manifold theory respectively. A nonlinear optimal governor controller is also proposed on the foundation of ideal hydraulic turbine model. The simulation results show that the novel governor control strategy for hydraulic turbines could enhance transient stability of power systems more effectively than the conventional control law.
KW - Dynamic compensation
KW - Hydraulic turbine governor
KW - Zero dynamics design method
UR - https://www.scopus.com/pages/publications/70350157933
U2 - 10.1109/ISCAS.2009.5118106
DO - 10.1109/ISCAS.2009.5118106
M3 - Conference contribution
AN - SCOPUS:70350157933
SN - 9781424438280
T3 - Proceedings - IEEE International Symposium on Circuits and Systems
SP - 1717
EP - 1722
BT - 2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009
T2 - 2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009
Y2 - 24 May 2009 through 27 May 2009
ER -