Title :
Limit cycles in PI control loops with absolute deadband sampling
Author :
Vasyutynskyy, Volodymyr ; Luntovskyy, Andriy ; Kabitzsch, Klaus
Author_Institution :
Dept. of Comput. Sci., Dresden Univ. of Technol., Dresden
Abstract :
Absolute deadband sampling is used in discrete control systems for reduction of the number of produced events. Under proper conditions, this sampling type results in limit cycles in steady state, which lead to increased number of events and deteriorate the sampling efficiency. This paper investigates the condition of emergence of limit cycles in the closed control loops with PI controllers, as well as the frequency of limit cycles.
Keywords :
PI control; closed loop systems; discrete event systems; sampling methods; PI control loops; absolute deadband sampling; closed control loops; discrete control systems; sampling efficiency; Adaptive control; Computer science; Control systems; Equations; Frequency; Limit-cycles; Pi control; Programmable control; Sampling methods; Steady-state;
Conference_Titel :
Microwave & Telecommunication Technology, 2008. CriMiCo 2008. 2008 18th International Crimean Conference
Conference_Location :
Sevastopol, Crimea
Print_ISBN :
978-966-335-166-7
Electronic_ISBN :
978-966-335-169-8
DOI :
10.1109/CRMICO.2008.4676414
