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Reduction of Starting Current in Large Induction Motors
Energies, 2022 Large induction motors can have a high inrush and run-up current during starting, often up to ten times the rated current. In weak supplies, this could be a problem, causing system stability issues and the voltage to dip below acceptable levels.
Mathew Habyarimana +2 more
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Optimal starting frequency of three‐phase induction motor
IET Electric Power Applications, 2022 In its applications, the starting performance of a 3‐phase induction motor (IM) is very important. The starting torque of the motor should be as high as possible within the safe current range of the motor driver.
Haixu Chen, Chao Bi
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Current-Limiting Soft Starting Method for a High-Voltage and High-Power Motor
Energies, 2019 Focusing on the starting problems of a high-voltage and high-power motor, such as large starting current, low power factor, waste of resources, and lack of harmonic control, this paper proposes a current-limiting soft starting method for a high-voltage ...
Yifei Wang +3 more
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A new simplified sensorless direct stator field-oriented control of induction motor drives
Frontiers in Energy Research, 2022 A field-orientation scheme is a typical control technique of induction motors to obtain sophisticated performance. The stator field-oriented control is less sensitive to parameter variations than the rotor field-oriented control.
Omar E. M. Youssef +4 more
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Nauka ta progres transportu, 2022 Purpose. Heating tests of traction electric machines are the most energy-intensive tests. Taking into account the need to choose a rational variant of the mutual load scheme in order to reduce the consumption of electrical energy during the tests, a ...
V. Y. Vasyliev +3 more
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STARTING CURRENTS IN TOROIDAL TRANSFORMERS
HERALD OF POLOTSK STATE UNIVERSITY. Series С FUNDAMENTAL SCIENCES, 2022 The analysis of the causes of starting currents in toroidal transformers is carried out. The moment of occurrence of the maximum values of starting currents is revealed. A theoretical estimate of the calculation of the magnitude of the starting currents is given.
D. DAUHIALA +2 more
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Energies, 2022 When an induction motor is running at stable speed and low slip, the fault signal of the induction motor’s broken bar faults are easily submerged by the power frequency (50 Hz) signal. Thus, it is difficult to extract fault characteristics. The left-side
Xinyue Liu +6 more
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NTU Journal of Engineering and Technology, 2022 In petroleum industrial systems, analysis of power systems should be considered to exploit system reliability and prevent change in process performance during starting in equipment such as induction motors and industrial pumps.
Farhad Muhsin Mahmood +1 more
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Design of current limiting starting circuit with thermal protection function
Meikuang Anquan, 2021 The circuit of mine intrinsically safe equipment has the risk of short-circuit failure, the chip surface temperature in current-limiting start circuit rises sharply, and the excessively high surface temperature of device leads to the failure of the ...
HUANG Chun, WU Yincheng, LI Yiwen
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Starting Current Application for Magnetic Stimulation [PDF]
Journal of Magnetics, 2011 A power supply for magnetic-stimulation devices was designed via a control algorithm that involved a start current application based on a resonant converter. In this study, a new power supply for magnetic-stimulation devices was designed by controlling the pulse repetition frequency and pulse width. The power density could be controlled using the start-
Sun-Seob Choi +2 more
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