Title :
Hα Robust Control of AC/DC Power Systems Based on Non-affine Nonlinear Model
Author :
Tang, Honghai ; Li, Chunwen ; Liu, Yanhong
Author_Institution :
Dept. of Autom., Tsinghua Univ., Beijing
Abstract :
The Hα robust controller design of AC/DC power system is investigated in this paper. Firstly, a novel fifth-order uncertain non-affine nonlinear model is put forward which describes the dynamics of both DC and AC systems. Then, an Hα controller is constructed by employing the feedback linearization technique and linear Hα theory. It is shown that the stability of the system is enhanced by the proposed firing angle control of the converter. The robust performance is improved as well. Simulation results illustrate the effectiveness of the proposed control strategy.
Keywords :
Hinfin control; feedback; linearisation techniques; nonlinear control systems; power system control; robust control; uncertain systems; AC/DC power systems; Hinfin robust control; converter firing angle control; feedback linearization technique; fifth-order uncertain nonaffine nonlinear model; stability; Control systems; Linear feedback control systems; Linearization techniques; Nonlinear dynamical systems; Power system control; Power system dynamics; Power system modeling; Power systems; Robust control; Stability; AC/DC power system; H¿ robust control; feedback linearization; non-affine nonlinear system;
Conference_Titel :
Power System Technology, 2006. PowerCon 2006. International Conference on
Conference_Location :
Chongqing
Print_ISBN :
1-4244-0110-0
Electronic_ISBN :
1-4244-0111-9
DOI :
10.1109/ICPST.2006.321606
