An Event-Triggered Approach for Load Frequency Control with Supplementary ADP
Date of Original Version
The modern power system is evolving towards a new generation of smart grid, with significant benefits from the latest computer-based communication network technologies. Furthermore, as the incremental deployment of phase measurements units (PMUs) and the use of Smart Meters, there will be a substantial increase of the real-time system measurements. Under this trend, event-triggered control (ETC) will play an important role in reducing the communication and computation cost. In this paper, a novel ETC architecture design for load frequency control (LFC) with supplementary adaptive dynamic programming (ADP) is presented. The primary proportional-integral (PI) controller uses different proportional and integral thresholds for updating the actions, while the supplementary ADP controller is updated in an aperiodic manner. A strategy for the parameters calculation is introduced in a systematic way, and theoretical analysis of the ultimate boundedness for the closed-loop event-triggered system is also included. Simulation studies are carried out on one-area and three-area IEEE LFC benchmarks, and the results demonstrate the efficiency and effectiveness of the proposed design.
IEEE Transactions on Power Systems
Dong, Lu, Yufei Tang, Haibo He, and Changyin Sun. "An Event-Triggered Approach for Load Frequency Control with Supplementary ADP." IEEE Transactions on Power Systems 32, 1 (2017): 581-589. doi:10.1109/TPWRS.2016.2537984.