Results 51 to 60 of about 488 (261)

Modification of Nonlinear Hydro Power Plant Models Using Real Plant Measurements

Energija, Ekonomija, Ekologija, 2020
Simulation models of Hydro Power Plant (HPP) are complex and highly nonlinear control system, composed of tunnel, penstock, surge tank, hydro turbine and hydroelectrical governor models.
Darko Babunski, Pance Bogoevski, Emil Zaev, Atanasko Tuneski   +3 more
doaj   +1 more source

Advanced Governor for Hydroelectric Turbines 1

IFAC Proceedings Volumes, 1992
Abstract This paper deals with a prototype of a speed and power control system for an hydroelectric power unit. Its structure and basic features are described. Main characteristics are the controller adaptative parameter algorithm with preprogrammed gains, the functions incorporated in sensors and actuators like autocalibration and self-diagnosis.
J. Riera, R. Cardoner
openaire   +1 more source

OntOMat: Toward Ontology‐Based Product and Process Design Engineering and Optimization Solutions Fueling Circular Value Chains

Advanced Engineering Materials, EarlyView.
The OntOMat ontology establishes a structured framework for polymer matrix fiber reinforced composite materials, integrating manufacturing processes, characterization methods, and multiscale design through the VDI/VDE 3682 formalized process description standard.
Nicolas Christ, Jörg Hohe, Martin Kördel, Michael Giese, Niklas Toffert, Christian Seidel, Olaf Rehme, Patrik Schneider, Oliver Focke, Elie Abi Aoun, Claas Falldorf, Beñat Gutierrez, Alexandra Kühn, Sven Torstrick-von der Lieth, Christoph Herden, Erik Johannsen, Jan‐Uwe R. Schmidt, Felix Winkelmann, Andreas Schott, Daniel Schott   +19 more
wiley   +1 more source

Research on Ultra-Low-Frequency Oscillation Suppression Method of High-Head, Large-Capacity Hydropower Units

Energies
Aiming at the problem of ultra-low-frequency oscillation (ULFO) caused by an irrational setting of governor parameters of high-head hydraulic turbine units, this paper proposes a method to optimize the additional damping control parameters of the ...
Sixiang Zhang, Longyuan Li, Weijun Liu, Daijun Luo, Bingjie Zhai, Haomin He, Peng Zou, Yuhong Wang, Shilin Gao   +8 more
doaj   +1 more source

Automatic generation control of a multi‐area CCGT‐thermal power system using stochastic search optimised integral minus proportional derivative controller under restructured environment

IET Generation, Transmission & Distribution, 2017
This article presents automatic generation control of an interconnected combined cycle gas turbine (CCGT) incorporated unequal area thermal system under restructured environment.
Debdeep Saha, Lalit Chandra Saikia
doaj   +1 more source

Microstructure Modification of Additively Manufactured Mo–9Si–8B by Annealing and Its Effects on High‐Temperature Mechanical Properties

Advanced Engineering Materials, EarlyView.
Postbuild annealing systematically modifies the phase fractions and morphology of EB‐PBF processed Mo–9Si–8B. Quantitative microstructure–property correlations reveal how controlled phase evolution enhances high‐temperature compressive strength and creep resistance.
Christopher Schmidt, Yong Chen, Georg Hasemann, Benjamin Wahlmann, Carolin Körner, Manja Krüger   +5 more
wiley   +1 more source

Biodegradable and Biocompatible Functional Polymers for Biomedical Applications

Advanced Functional Materials, EarlyView.
Biodegradable and biocompatible functional polymers integrate electrical, mechanical, and stimuli‐responsive functionalities while enabling programmed degradation under physiological conditions. This review introduces recent advances in conductive, shape‐memory, self‐healing, photocurable, and adhesive polymer systems, emphasizing material design ...
Won Bae Han, Shuvra Mondal, Sungkeun Han, Chan‐Hwi Eom, Venkata Ramesh Naganaboina, Suk‐Won Hwang   +5 more
wiley   +1 more source

Flax Composites With Improved Interfacial Strength Through Microbially Induced Mineral Precipitation

Advanced Materials, EarlyView.
A bio‐inspired biomineralization strategy introduces an additional hierarchy to flax fiber composites. By controlling microbe‐mediated mineral particle deposition through tuned salt concentrations, stress transfer within the natural fiber composite is enhanced.
Deniz Sayinbas, Ingo Nettersheim, Jeong‐Joo Oh, Marie‐Eve Aubin‐Tam, Julie Teuwen, Kunal Masania   +5 more
wiley   +1 more source

An Adaptive water turbine governor

, 1990
Based on the investigation on the properties of the water turbine governing system, an adaptive control strategy is proposed. The most important feature of this control strategy is that its control law is adjusted according to the operating modes of the system.
openaire   +2 more sources

Confinement‐Induced Donnan Potential Enables Sealed Hydrovoltaic Power From Microliter Water

Advanced Materials, EarlyView.
An ultrathin MXene/cellulose nanofiber (CNF) nanochannel‐based hydrovoltaic generator produces sustained direct current (DC) from a single microliter droplet under sealed operation. Asymmetric nanochannel confinement establishes a persistent ion gradient and a confinement‐induced Donnan potential, harvesting the interfacial free energy released upon ...
Sangyun Na, Geonyoung Jung, Yoojin Chang, Yun Goo Ro, Cheolhong Park, Jeonghee Yeom, Jinyoung Kim, Jeeyoon Kim, Hyejin Lee, Hyeji Oh, Hyunhyub Ko   +10 more
wiley   +1 more source