Results 51 to 60 of about 10,383 (213)
Free-flying solar reflector spacecraft [PDF]
, 1981 Results of investigations of requirements and design concepts for large solar-reflecting spacecraft are given. The emphasis is on the one kilometer diameter self contained spacecraft that can be packaged and launched in the space shuttle.
Hedgepeth, J. M.
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ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.This paper explores global solar PV deployment, cost trends, and grid integration challenges in 2025. It examines the role of energy storage in firming solar output and supporting electric vehicle (EV) growth, alongside policy shifts, investment flows, and technological innovations.
Ehsan Rezaee, S. Ravi P. Silva
wiley +1 more source
Design and simulate of LQR-Fuzzy controller for unicycle robot with double flywheels [PDF]
MATEC Web of Conferences, 2018 This research is focus on design and simulate unicycle robot with double flywheels model with LQR-Fuzzy controller. Roll balancing torque is generated by gyroscopic effect. Pitch balancing torque is applied by inverted pendulum concept.
Chantarachit Surachat
doaj +1 more source
Applied Sciences, 2021 Due to the micro-vibration of flywheels, the imaging quality of a high-resolution optical remote sensing satellite will be deteriorated, and the micro-vibration effect on the payload is complicated, so it is essential to establish a reasonable and ...
Yang Yu +4 more
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Energy Storage System in Microgrids: Challenges and Opportunities
Energy Science &Engineering, EarlyView.Hybrid integration of multiple Energy Storage Systems (ESSs) within renewable‐powered microgrids enhances reliability, flexibility, and economic sustainability. Lithium‐ion batteries, flow batteries, hydrogen storage, and thermal systems complement each other through coordinated control via Energy Management Systems.
Mohamed G. Moh Almihat, Josiah L. Munda
wiley +1 more source
Third Generation Of Flywheels: A Promising Substitute To Batteries
Eletrônica de Potência, 2008 A review of flywheels as energy storage systems is organized in three generations. The performance is compared with that of batteries and other energy storage systems in terms of power and energy density.
Richard M. Stephan +2 more
doaj +1 more source
General Electric composite ring-disk flywheel: Recent and potential developments [PDF]
, 1984 Recent developments of the General Electric hybrid rotor design are described. The relation of the hybrid rotor design to flywheel designs that are especially suitable for spacecraft applications is discussed.
Coppa, A. P.
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Energy Science &Engineering, EarlyView.This study presents a hierarchical coordination framework where multiple VPPs interact with the DSO to optimize energy trades and flexibility offers. Each VPP aggregates DERs and DR, performing internal optimization, day‐ahead bidding, and assessing flexibility to reduce excess renewable generation and pollution.
Alireza Zare +4 more
wiley +1 more source
On the motion of bodies based on changes in the kinetic moment
RUDN Journal of Engineering Research, 2019 The controlled motion of a body in a central gravitational field without mass flow is considered. The possibility of moving the body in the radial direction from the center of attraction due to changes in the kinetic moment relative to the center of mass
Yury N. Razoumny, Sergei A. Kupreev
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Energy Science &Engineering, EarlyView.An optimized two‐layer TPU‐HESS operation strategy enables adaptive power allocation, mitigates regulation delay, and enhances AGC performance by 6.4% over conventional control methods. ABSTRACT With the growing penetration of renewable energy, its intermittency and fluctuation have imposed increasingly stringent regulation requirements on thermal ...
Zhiwei Xing +9 more
wiley +1 more source