PWM Control and Identification of Frequency Characteristics of a Pneumatic Actuator using PLC Controller

Cajetinac, S.; Šešlija, Dragan; Aleksandrov, S.; Todorovic, Milica M

doi:10.5755/j01.eee.123.7.2369

Cited by 8 publications

(9 citation statements)

References 7 publications

(3 reference statements)

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“…The difference between two achieved positions represents the real error in steady state, and it is 0.2% (1.2 mm). Using integral regulator steady-state errors can be eliminated, as it is shown in Cajetinac et al 11 Positioning cannot always be realized with 100% accuracy due to dynamic behavior of the whole system and compressed air characteristics. When reference position is achieved with the required accuracy then both chambers are connected to the compressed air supply, which represents the stationary state.…”

Section: Pwm With By-passmentioning

confidence: 99%

“…PWM control of pneumatic actuator can be achieved with a PLC. 11 It is shown how the problem has been solved by applying PLC, with few main characteristics such as reliability, reasonable price, good performance and simple maintenance.…”

Section: Traditional Pwm Controlmentioning

confidence: 99%

“…PWM control realized with PLC is cheap, reliable and flexible, 11,20 and it is shown that it can easily be implemented as energy-efficient one.…”

Section: Inter-chamber Cross Flowmentioning

confidence: 99%

“…An alternative to servo control using proportional valve is PWM control using two 3/2 11 or four 2/2 (Figure 2) valves. Modeling and designing of position controller of double acting cylinder that includes four 2/2 is shown in Najjari et al 12 These valves have a negligible leakage of air in the closed state and from the aspect of energy efficiency are significantly better.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Application of pulse width modulation and by-pass valve control for increasing energy efficiency of pneumatic actuator system

Šešlija

Cajetinac²,

Blagojević

et al. 2018

Proceedings of the Institution of Mechanical Engineers, Part I:

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Control of a pneumatic actuator using pulse width modulation (control) represents a good alternative for control of pneumatic actuator that uses proportional valve. Important advantage of pulse width modulation control is fewer consumption of compressed air. In addition, air consumption can be further reduced by the use of inter-chamber cross flow (chamber bypassing). This article discusses joint application of pulse width modulation and bypass chamber control on the example of pneumatic rodless cylinder which is controlled by programmable logic controller. Saving of compressed air was experimentally determined, as well as the influence of inter-chamber cross flow on the quality of the control. With this application of pulse width modulation and bypass valve control, pneumatic actuator system shows that 30% of energy can be saved under the same working conditions in comparison to the traditional pulse width modulation control system.

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Section: Pwm With By-passmentioning

confidence: 99%

Section: Traditional Pwm Controlmentioning

confidence: 99%

“…PWM control realized with PLC is cheap, reliable and flexible, 11,20 and it is shown that it can easily be implemented as energy-efficient one.…”

Section: Inter-chamber Cross Flowmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Application of pulse width modulation and by-pass valve control for increasing energy efficiency of pneumatic actuator system

Šešlija

Cajetinac²,

Blagojević

et al. 2018

Proceedings of the Institution of Mechanical Engineers, Part I:

View full text Add to dashboard Cite

show abstract

“…Thanks to a reliable, affordable price, good computer and operating skills as well as easy maintenance, programmable logic controllers (PLC) today play an important role in the control and process automation. In paper [9], a programmable logic controller has been used for the above described implementation of the PWM control of pneumatic actuator. For this purpose, there is formed an experimental positioning system whose pneumatic scheme and physical layout is given in Figure 1.…”

Section: The Experimental Settingmentioning

confidence: 99%