Application and research of effective apparent power principle in apparent energy meters
Diance yu yibiaoWith the popularization of new types of electrical equipment, the load of the power system has become increasingly complex, and the nonlinear characteristics have become more prominent. However, the traditional definition of three-phase apparent power is
JIANG Zisong +3 more
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Three-Dimensional Identification for Unbalanced Mass of Rotor Systems in Operation
Applied Sciences, 2018 Unbalanced mass identification is important for rotor systems. Current methods normally use sensors, which only detect vibration in two-dimensional (2D) space. Actually, the rotor systems vibrate in three-dimensional directions.
Huaxia Deng +6 more
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Надежность и качество сложных систем, 2022 Background. Mass-inertia asymmetry is experimentally verified at the final stage of the module assembly while designing and manufacturing both efficient and reliable power unit for a vehicle. Materials and methods.
A.V. Klyuchnikov
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Apollo 16 mission report. Supplement 2: Service Propulsion system final flight evaluation [PDF]
The Apollo 16 Mission was the sixteenth in a series of flights using Apollo flight hardware and included the fifth lunar landing of the Apollo Program.
Smith, R. J., Wood, S. C.
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UAV Propeller: Fault Detection, Characterization, and Calibration: A Comprehensive Study
IEEE AccessThe growing use of Uncrewed Aerial Vehicles (UAVs) demands higher reliability and safety. Propeller faults are a major risk for small UAVs. Yet, many studies do not calibrate severity or test early faults that preserve nominal flight.
Mohssen E. Elshaar +5 more
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Overview of increasing the penetration of renewable energy sources in the distribution grid by developing control strategies and using ancillary services [PDF]
, 2014 Increasing the renewables energy resources in the distribution network is one of the main challenges of the distributed system operator due to instability, power quality and feeder capacity problems. This paper proposes a solution for further penetration
Bozalakov, Dimitar +3 more
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Intrinsic, multiplexable sensors for electric field strength using structural slow light in phase-shifted fibre Bragg gratings [PDF]
, 2012 In this paper we demonstrate through simulation the potential for phase-shifted fibre Bragg gratings incorporating structural slow light to enable intrinsic reflection-mode point sensors for electric field or voltage.
Niewczas, Pawel, Orr, Philip
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Novel PLL for power converters under unbalanced and distorted grid conditions
The Journal of Engineering, 2019 A novel phase-locked loop (PLL) with simple structure is proposed in the present work for three-phase power converters under adverse grid conditions.
Jianguo Wang, Jihong Wang, Xing Luo
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Steady-state unbalance response of a three-disk flexible rotor on flexible, damped supports [PDF]
Experimental data are presented for the unbalance response of a flexible, ball bearing supported rotor to speeds above the third lateral bending critical. Values of squeeze film damping coefficients obtained from measured data are compared to theoretical
Cunningham, R. E.
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A COMPUTER CALCULATION FOR TENTATIVE ELECTRICAL SYSTEM IMPROVEMENT BY REACTIVE POWER COMPENSATION CONSIDERING SYSTEM UNBALANCED [PDF]
, 2013 An improvement of unbalanced distribution system operation is carried out by reactive power compensation. The lagging reactive power demand is compensated by allocating a number of three-phase shunt capacitors.
Agus , Supardi +2 more
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