A Low Cost, Open-source IoT based 2-axis Active Solar Tracker for Smart Communities
Conference proceedings article
ผู้เขียน/บรรณาธิการ
กลุ่มสาขาการวิจัยเชิงกลยุทธ์
ไม่พบข้อมูลที่เกี่ยวข้อง
รายละเอียดสำหรับงานพิมพ์
รายชื่อผู้แต่ง: Sritoklin A., Malee W., Prugsanantanatorn A., Sapaklom T., Na Ayudhya P.N., Mujjalinvimut E., Kunthong J.
ผู้เผยแพร่: Hindawi
ปีที่เผยแพร่ (ค.ศ.): 2019
Volume number: 2018-October
ISBN: 9781538677742
นอก: 0146-9428
eISSN: 1745-4557
ภาษา: English-Great Britain (EN-GB)
บทคัดย่อ
This paper presents a comparative study of the effectiveness of two model-free techniques for compensating stiction effects in control valves. The approaches to be compared include the combinations of the control freezing (CF) and the variable amplitude (VA) pulse methods with the knocker and the constant reinforcement (CR) techniques. These techniques are compared with each other in terms the robustness to method parameters and estimated stiction size. Novel evaluation criteria namely the OPR-based objective functions and the VR-based objective functions which properly balance the integral absolute error (IAE) and the variations in control effort and valve movements are proposed. Simulation results show that combining CF with either the knocker or CR results in more robustness than the VA-based approaches. Moreover, according to our test results the best combination is CF+knocker. ฉ 2019 IEEE.
คำสำคัญ
Compensation, control valve, model-free, oscillations, Stiction