Optimization and Prediction Model of Flatness Actuator Efficiency in Cold Rolling Process Based on Process Data
Sign Up to like & getrecommendations! Published in 2021 at "steel research international"
DOI: 10.1002/srin.202100314
Abstract: The accuracy of flatness actuator efficiency (FAE) is a prerequisite to achieve high precision automatic flatness control. This study proposes an accurate acquisition approach of FAE based on the combination of simulation modeling and data‐driven… read more here.
Keywords: process; flatness; model; actuator efficiency ... See more keywords
Discrete-Time Flatness-Based Control Design for LTV MIMO Systems
Sign Up to like & getrecommendations! Published in 2019 at "Arabian Journal for Science and Engineering"
DOI: 10.1007/s13369-018-3545-z
Abstract: This paper deals with the design of an linear time-varying (LTV) controller for multiple-input multiple-output (MIMO) systems. Using the concept of differential flatness property combined with a dead-beat observer, we propose as a result a… read more here.
Keywords: control; mimo systems; discrete time; flatness ... See more keywords
Kernel extreme learning machine for flatness pattern recognition in cold rolling mill based on particle swarm optimization
Sign Up to like & getrecommendations! Published in 2020 at "Journal of the Brazilian Society of Mechanical Sciences and Engineering"
DOI: 10.1007/s40430-020-02357-8
Abstract: In this paper, we propose a kernel extreme learning machine (KELM) flatness recognition model based on particle swarm optimization (PSO). Compared with the extreme learning machine (ELM), the KELM has fewer initial parameters and better… read more here.
Keywords: extreme learning; learning machine; cold rolling; recognition ... See more keywords
Flat optical frequency comb generation employing cascaded dual-drive Mach-Zehnder modulators
Sign Up to like & getrecommendations! Published in 2020 at "Results in physics"
DOI: 10.1016/j.rinp.2020.103152
Abstract: Abstract The generation of flat optical frequency comb lines (OFCL) of 10 GHz frequency spacing is proposed and demonstrated theoretically employing Dual-Drive Mach Zehnder modulators (DD-MZMs). A theoretical analysis is carried out for ultra flat spectra… read more here.
Keywords: frequency; optical frequency; dual drive; flatness ... See more keywords
Flatness-based control approach to drug infusion for cardiac function regulation.
Sign Up to like & getrecommendations! Published in 2017 at "IET systems biology"
DOI: 10.1049/iet-syb.2016.0012
Abstract: A new control method based on differential flatness theory is developed in this study, aiming at solving the problem of regulation of haemodynamic parameters. Actually control of the cardiac output (volume of blood pumped out… read more here.
Keywords: heart; infusion; control; flatness ... See more keywords
Flatness Prediction of Cold Rolled Strip Based on EM-TELM
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Access"
DOI: 10.1109/access.2021.3067363
Abstract: Flatness of cold rolled strip is an extremely important indicator of quality, and flatness control is the key technology of the modern high-accuracy rolling mill. The establishment of an efficient and accurate flatness prediction model… read more here.
Keywords: flatness prediction; rolled strip; prediction; cold rolled ... See more keywords
Sensorless Robust Flatness-Based Control with Nonlinear Observer for Non-Ideal Parallel DC-AC Inverters
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Access"
DOI: 10.1109/access.2022.3175847
Abstract: Parallel operation of multiple AC/DC inverters is favorable in hybrid AC/DC microgrids to avert consecutive conversion stages and increase the system’s efficacy. Yet, several emerging technical challenges impede the expansion of such layout such as… read more here.
Keywords: system; parallel inverters; control; input voltage ... See more keywords
Integrated Control of Active Front Wheel Steering and Active Suspension Based on Differential Flatness and Nonlinear Disturbance Observer
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Vehicular Technology"
DOI: 10.1109/tvt.2022.3151252
Abstract: Mechanical elastic wheel (MEW) has the advantage of explosion-proof, which helps to guarantee the safety and maneuverability of the automobile. Aiming to improve the stability of vehicles matching with MEW, this paper proposes an integrated… read more here.
Keywords: active front; control; wheel; integrated control ... See more keywords
Observer-based tracking control for single machine infinite bus system via flatness theory
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Electrical and Computer Engineering"
DOI: 10.11591/ijece.v11i2.pp1186-1199
Abstract: In this research, we aim to use the flatness control theory to develop a useful control scheme for a single machine connected to an infinite bus (SMIB) system taking into account input magnitude and rate… read more here.
Keywords: system; control; infinite bus; single machine ... See more keywords
Decoupling Strategy and Dynamic Decoupling Model of Flatness Control in Cold Rolling Strip
Sign Up to like & getrecommendations! Published in 2020 at "Isij International"
DOI: 10.2355/isijinternational.isijint-2019-328
Abstract: Taking a 1 420 mm UCM six-high cold rolling mill as the research object, by calculating and analyzing the relative gain array of flatness adjustments, the flatness control strategy of independent control primary flatness, decoupling… read more here.
Keywords: flatness control; control; decoupling control; cold rolling ... See more keywords
Development of a Permeability Formula for Tight and Shale Gas Reservoirs Based on Advanced High-Precision Lab Measurement Techniques
Sign Up to like & getrecommendations! Published in 2021 at "Energies"
DOI: 10.3390/en14092628
Abstract: Computed X-ray tomography (CT), together with pulse and pressure decay permeability methods were used to evaluate a formula for absolute reservoir permeability. For this reason, 62 core samples representing geological material of tight, gas-bearing sandstones,… read more here.
Keywords: gas; development permeability; permeability formula; permeability ... See more keywords