Results 11 to 20 of about 10,608 (305)
Feasibility studies of a converter-free grid-connected offshore hydrostatic wind turbine [PDF]
, 2020 Owing to the increasing penetration of renewable power generation, the modern power system faces great challenges in frequency regulations and reduced system inertia.
Lin, Shuyue, Tong, Xin, Zhao, Xiaowei
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Energy Efficiency Comparison of Hydraulic Accumulators and Ultracapacitors
Energies, 2020 Energy regeneration systems are a key factor for improving energy efficiency in electrohydraulic machinery. This paper is focused on the study of electric energy storage systems (EESS) and hydraulic energy storage systems (HESS) for energy regeneration ...
Jorge Leon-Quiroga +4 more
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Calculation of design parameters of the bulldozer hydraulic drive [PDF]
Научно-технический вестник Брянского государственного университетаOne of the main parameters of the hydraulic drive for moving the working element of road construction machines is the speed of movement of the hydraulic cylinder piston.
Letopolsky A.B., Teterina I.A.
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Analysis of Damping Characteristics of a Hydraulic Shock Absorber
Shock and Vibration, 2021 In the present study, a hydraulic shock absorber is proposed. Since the damper is mainly used in suspension energy recovery system, the damping characteristics of the damper under no-load state are studied in this paper. Structural design is conducted so
Zhifei Wu +3 more
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High - speed power hydraulic actuator of reciprocating motion [PDF]
E3S Web of Conferences, 2023 As an object of research in this paper, we use a hydro-mechanical system of high-speed technological equipment with reciprocating movement of the output link on the example of a cyclic perforating press hammer with a force of 1600 kN and a speed of up to
Golubeva Olesya +2 more
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IEEE Access, 2018 The relief valve overflowing energy loss is considered impossible to solve. This paper proposes a new type of proportional relief valve (PRV) with a hydraulic energy regeneration unit (HERU) connected to its outlet. The mathematical model of the proposed
Tianliang Lin +3 more
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Pre-Charge Pressure Estimation of a Hydraulic Accumulator Using Surface Temperature Measurements
Wind, 2022 Pitch systems form an essential part of today’s wind turbines; they are used for power regulation and serve as part of a turbine’s safety system. Hydraulic pitch systems include hydraulic accumulators, which comprise a crucial part of the safety system ...
Magnus F. Asmussen +3 more
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Analysis and Countermeasures of Abnormal Operation of Unloading Circuit [PDF]
E3S Web of Conferences, 2021 Taking the two position two way valve unloading circuit, accumulator unloading circuit, double pump unloading circuit, liquid control sequence valve unloading circuit as examples, the paper analyses the reason of abnormal operation of several hydraulic ...
Mei Xue, Huili Lin, Xiaoli Zheng
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Analysis of studies of work processes of energy-saving hydraulic drives and devices of highly loaded technological machines and equipment [PDF]
E3S Web of Conferences, 2023 The analysis of studies of the work processes of energy-saving hydraulic drives and devices was carried out in order to identify effective ways to reduce the dynamic loading and energy intensity of highly loaded technological machines and equipment. When
Popikov Petr +8 more
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Energy harvesting from vehicular traffic over speed bumps: A review [PDF]
, 2018 Energy used by vehicles to slow down in areas of limited speed is wasted. A traffic energy-harvesting device (TEHD) is capable of harvesting vehicle energy when passing over a speed bump. This paper presents a classification of the different technologies
Blanco-Fernandez, E. +3 more
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