Probability-Based Optimal Control Design for Soft Landing of Short-Stroke Actuators

Moya-Lasheras, Eduardo (Universidad de Zaragoza) ; Ramirez-Laboreo, Edgar (Universidad de Zaragoza) ; Sagues, Carlos (Universidad de Zaragoza)

Resumen: The impact forces during switching operations of short-stroke actuators may cause bouncing, audible noise, and mechanical wear. The application of soft-landing control strategies to these devices aims at minimizing the impact velocities of their moving components to ultimately improve their lifetime and performance. In this brief, a novel approach for soft-landing trajectory planning, including probability functions, is proposed for optimal control of the actuators. The main contribution of the proposal is that it considers the uncertainty in the contact position, and hence, the obtained trajectories are more robust against system uncertainties. The problem is formulated as an optimal control problem and transformed into a two-point boundary value problem for its numerical resolution. Simulated and experimental tests have been performed using a dynamic model and a commercial short-stroke solenoid valve. The results show a significant improvement in the expected velocities and accelerations at contact with respect to past solutions in which the contact position is assumed to be perfectly known.

Idioma: Inglés

DOI: 10.1109/TCST.2019.2918479

Año: 2019

Publicado en: IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY 28, 5 (2019), 1956 - 1963
ISSN: 1063-6536

Factor impacto JCR: 5.312 (2019)

Categ. JCR: ENGINEERING, ELECTRICAL & ELECTRONIC rank: 35 / 265 = 0.132 (2019) - Q1 - T1
Categ. JCR: AUTOMATION & CONTROL SYSTEMS rank: 10 / 63 = 0.159 (2019) - Q1 - T1

Factor impacto SCIMAGO: 1.944 - Electrical and Electronic Engineering (Q1) - Control and Systems Engineering (Q1)

Financiación: info:eu-repo/grantAgreement/ES/DGA/T45-17R
Financiación: info:eu-repo/grantAgreement/ES/MEC/FPU14-04171
Financiación: info:eu-repo/grantAgreement/ES/MINECO/RTC-2017-5965-6

Tipo y forma: Artículo (PostPrint)

Área (Departamento): Área Ingen.Sistemas y Automát. (Dpto. Informát.Ingenie.Sistms.)