Analysis of Event-Based PI Controller and Some Proposed Improvements

Yusop, Noraide Md; Mamat, Rosbi

doi:10.1109/i2cacis49202.2020.9140183

Cited by 1 publication

(4 citation statements)

References 7 publications

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“…In this section, performance of the proposed method (PM) will be compared with conventional time-triggered PI controller (TT) and two simple event-based PI controllers, the Durand and Marchand saturation (DMS) method [10], and Yusop and Mamat fixed period algorithm (FPA) [15]. The DMS and FPA methods were selected due to both methods have a less algorithm in their event-based PI computation load [15]. Table 1 shows the comparison of the integral discretization algorithm and triggering condition for all three methods.…”

Section: Simulation Examplesmentioning

confidence: 99%

“…0.01 and 0.1. Similar performance index in [15] was used in this study; an integrated absolute difference between the time-triggered and event-based system response (IAEP). The IAEP was calculated as follows:…”

Section: Simulationmentioning

confidence: 99%

“…However, SSOD technique introduced new computation for error quantization and required new tuning rule, consequently, increasing the computational complexity [12][13][14]. The latest and simplest algorithm can be found in [15] where simple modification was made on integral discretization algorithm to produce event-based response close to time-triggered response.…”

Section: Introductionmentioning

confidence: 99%

“…Limit cycles is an oscillatory response at the steady-state region which can create problems such as quick wear out of actuators. Existing simple event-based PI controller [6,10,15] cannot be used arbitrarily with the aggressive tuning rule to have the good response with free limit cycles. Therefore, the aim of this work is to introduce new simple event-based algorithm that can avoid the limit cycles even by using control parameters from the continuous tuning rule.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Improved Event-Based Pi Controller for Limit Cycles Avoidance

Yusop

Mamat

2021

IJIE

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One of the issues in designing event-based proportional-integral (PI) controller using aggressive tuning rules is the possible occurrence of limit cycles. To date, there is no adequate simple event-based PI controller technique able to explicitly use aggressive tuning rule. In this paper an improved simple event-based PI controller is proposed to address this issue. By analysing the discrete PI algorithm, an improved triggering condition is introduced. To test the effectiveness of the approach, extensive simulations are carried out by introducing the proposed method to process control under various sampling period, triggering limit, and different tuning rules namely, AMIGO, SIMC and One-Third tuning rules. The performances are evaluated based on two standard criteria: ability to imitate the time-triggered system and computation load reduction. The results show that the performance of the proposed method able to surpass others simple event-based PI controller approaches by giving a closest response to the time-triggered system, lowest computational load and able to avoid the limit cycles occurrences. It is envisaged that the proposed method can be useful in designing a simple event-based PI controller that compatible with any type of tuning rules.

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Section: Simulation Examplesmentioning

confidence: 99%

Section: Simulationmentioning

confidence: 99%