Pi Controller Design for Stable Solenoid Valve System Using the Scheduling of Control Gain
Yongho Jeon1, Shinwon Lee2
1Yongho Jeon Department of Aviation Maintenance Engineering Jungwon University, Republic of Korea.
2Shinwon Lee, Department of Computer Engineering, Republic of Korea.
Manuscript received on 05 March 2019 | Revised Manuscript received on 12 March 2019 | Manuscript Published on 20 March 2019 | PP: 9-11 | Volume-8 Issue- 4S2 March 2019 | Retrieval Number: D1S0003028419/2019©BEIESP
Open Access | Editorial and Publishing Policies | Cite | Mendeley | Indexing and Abstracting
© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open-access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Solenoid valves are widely used in the industrial field and require systems that include position control. The solenoid valve exhibits a characteristic that the inductance changes depending on the position of the iron core in the solenoid coil, and has a very nonlinear relationship. In the control of the nonlinear system, the control gain of the controller has the inconvenience of adjusting again according to the change of the reference position. In this work, it designed PI controller for position control of solenoid valve system with strong nonlinearity and design gain scheduler in which each gain of controller is automatically calculated as a function of position reference. When designing the gain scheduler, this system first was designed the mechanical part and the electric circuit part separately. And then, all are designed with PI control. The proposed controller has a steady – state error of less than 0.5 [%] and has almost the same control performance with respect to the positional reference input of each step.
Keywords: Gain Scheduling, Nonlinear, PI Control, Plunger, Solenoid valve.
Scope of the Article: Computer Science and Its Applications