Results 21 to 30 of about 2,370 (218)
Sensors, 2017 Moving towards the more electric aircraft (MEA), a hybrid actuator configuration provides an opportunity to introduce electromechanical actuator (EMA) into primary flight control. In the hybrid actuation system (HAS), an electro-hydraulic servo actuator (
Xingjian Wang +3 more
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Sliding Mode Control Based on High-Order Linear Extended State Observer for Near Space Vehicle
International Journal of Aerospace Engineering, 2021 Aiming at the uncertainty and external disturbance sensitivity of the near space vehicles (NSV), a novel sliding mode controller based on the high-order linear extended state observer (LESO) is designed in this paper.
Ouxun Li +3 more
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Energies, 2022 This paper presents a new control structure to improve the performance of LCL grid-connected inverters. First, the conventional linear extended state observer (LESO) has difficulty rejecting periodic disturbances, so the proposed method adds an internal ...
Danyun Li, Dashuang Zhao
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Disturbance Rejection Attitude Control for a Quadrotor: Theory and Experiment
International Journal of Aerospace Engineering, 2021 In this article, an attitude tracking controller is designed for a quadrotor unmanned aerial vehicle (UAV) subject to lumped disturbances. Firstly, the attitude dynamical model of the quadrotor under external disturbances is established. Subsequently, an
Li Ding +3 more
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International Journal of Applied Earth Observation and Geoinformation, 2022 Surface O3 pollution severely threats human health and crop production across the globe. Data-driven machine learning approaches are broadly used for estimating surface O3 concentrations in China by integrating site-level measurements, meteorological reanalysis data, and satellite remote sensing observations. However, the feasibility of extending these
Songyan Zhu +5 more
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Optimized office lighting advances melatonin phase and peripheral heat loss prior bedtime
Scientific Reports, 2022 Improving indoor lighting conditions at the workplace has the potential to support proper circadian entrainment of hormonal rhythms, sleep, and well-being.
Marta Benedetti +4 more
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Machines, 2023 A feedforward strap-down control with a compensator base on the linear extended state observer (LESO) is proposed for a miniaturized camera stabilized platform, which reduces the influence of the dead zone in speed regulation and uncertainties in ...
Tianlei Fu +3 more
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Energies, 2020 The energy storage inverter system has the characteristics of nonlinearity, strong coupling, variable parameters, and flexible mode switching between parallel and off grid.
Youjie Ma +5 more
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The Railway 4.0 Concept – the vision of a digital railway in the Czech Republic (CR)
Acta Polytechnica CTU Proceedings, 2022 The paper presents a new alternative approach to the modernization of control and safety technologies on the railway network in the Czech Republic, referred to as the "The Railway 4.0 Concept".
Martin Leso
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A machine learning approach for mapping the very shallow theoretical geothermal potential
Geothermal Energy, 2019 The very shallow geothermal potential (vSGP) is increasingly recognized as a viable resource for providing clean thermal energy in urban and rural areas.
Dan Assouline +3 more
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