Wide-Area Robust Decentralized Coordinated Control of HVDC Power System Based on Polytopic System Theory

Shiyun Xu, Huadong Sun, Baiqing Li, Guangquan Bu, Jun Yi, Jian Zhang, Bing Zhao, Zhanming Chen
2015 Mathematical Problems in Engineering  
The present study proposes a hierarchical wide-area decentralized coordinated control framework for HVDC power system that is robust to multiple operating conditions. The upper level wide-area coordinated controller is designed in the form of dynamic output feedback control that coordinates the lower level HVDC supplementary controller, PSS, and SVC. In order to enhance the robustness of the designed controller under various operating conditions, the polytopic model is introduced such that the
more » ... uced such that the closed-loop control system can be operated under strong damping mode in virtue of the stability criterion based on damping ratio. Simulation results demonstrate that the proposed controller design algorithm is capable of enhancing the system damping over four different conditions.
doi:10.1155/2015/510216 fatcat:zogdqwavxnddnhygd34gmsoyrq