A Wide-Area Dynamic Damping Controller Based on Robust H infinity Control for Wide-Area Power Systems With Random Delay and Packet Dropout

作者：Li, Meng; Chen, Yong^*

来源：IEEE Transactions on Power Systems, 2018, 33(4): 4026-4037.

DOI：10.1109/TPWRS.2017.2782792

• Wide-area dynamic damping controller (WADDC)
• random delay and packet dropout
• robust H infinity control
• two-area four-machine power system
• and 16-machine 68-bus system

Wide-area damping controller (WADC) is a very effective tool to damp out the low-frequency oscillation in wide-area power systems. However, the WADC needs communication networks to transmit remote signals; hence, the network-induced delay and packet dropout are inevitably introduced in the communication of wide-area measurement systems (WAMS). In order to effectively compensate delay and packet dropout, in this paper, a new wide-area dynamic damping controller (WADDC) is designed. Firstl the discrete-time model of power system with random delay, packet dropout, and external disturbance is established. Then, the WADDC based on robust H infinity control is designed and the sufficient condition about stability of the closed-loop system is given. Finally, the controller designed in this paper is tested on the two-area four-machine power system and the 16-machine 68-bus system. Simulation results demonstrate the effectiveness the proposed methods for damping out the low-frequency oscillation and compensating the network-induced delay and packet dropout.

• 出版日期2018-7
• 单位电子科技大学