A New Time Optimal Control based Tracking Differentiator with Small Phase Lag - Details

author：

Zhang, Louyue (Zhang, Louyue.) ^[1] | Zhang, Hehong (Zhang, Hehong.) ^[2] (Scholars：张和洪) | Zhai, Chao (Zhai, Chao.) ^[3] | Wang, Xi (Wang, Xi.) ^[4] | Dan, Zhihong (Dan, Zhihong.) ^[5]

Indexed by：

EI Scopus

Abstract：

Real-time　filtering　and　derivative　signals　with　as　small　phase　lag　as　possible　are　of　great　significance　for　control　performances.　In　this　work,　an　enhanced　time　optimal　control　(referred　as　f　sa)　based　tracking　differentiator　(TD)　is　proposed,　which　can　guarantee　a　small　phase　lag　in　both　filtering　and　differential　signals　for　a　class　of　input　signals　with　different　levels　of　noises.　This　characteristic　is　achieved　by　introducing　a　damping　coefficient　to　the　boundary　transformation　function　of　the　time-optimal　control　algorithm.　Simulation　results　show　that　the　proposed　f　s　a　based　TD　outperforms　the　fhan　based　TD　in　both　filtering　and　differentiation　©　2024　Technical　Committee　on　Control　Theory,　Chinese　Association　of　Automation.

Keyword：

Control theory Damping Optimal control systems Wiener filtering

Community：

[ 1 ] [Zhang, Louyue]Beihang University, School of Energy and Power Engineering, Beijing; 102206, China
[ 2 ] [Zhang, Hehong]Fuzhou University, College of Computer and Data Science, Fuzhou; 350108, China
[ 3 ] [Zhai, Chao]China University of Geosciences, School of Automation, Wuhan; 430074, China
[ 4 ] [Wang, Xi]Beihang University, School of Energy and Power Engineering, Beijing; 102206, China
[ 5 ] [Dan, Zhihong]AECC Sichuan Gas Turbine Establishment Mianyang, Science and Technology on Altitude Simulation Laboratory, 621703, China