Time Synchronization Algorithm for Networked Control Systems Based on Stochastic Search
Kehui Ye, Yan Yi, Huifeng Wu · IEEE Transactions on Industrial Informatics · 2021
Time synchronization is an important function for networked control systems. At present, most of the time synchronization methods are based on proportional–integral controllers. These methods rely on the time offset calculated by the sampling data and are, therefore, vulnerable to sampling noise. This study introduces a stochastic search method and proposes a novel time synchronization method with antinoise ability, especially pulse noise. In this article, mathematical models of the proposed method are given, and its behavior is analyzed through simulation. The performance of the proposed method is verified by a comparative experiment, and the experiment results show that the proposed method has a faster convergence speed and better accuracy in a switched networked control system.