Results 21 to 30 of about 136,577 (264)
PWM-based Flux linkage estimation for permanent magnet synchronous machines
The Journal of Engineering, 2019 Monitoring of rotor temperature in permanent magnet synchronous machines (PMSM) is of great importance as high temperature could cause partial or even irreversible demagnetisation of the permanent magnets (PMs).
Shuai Xiao, Antonio Griffo
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Frontiers in Energy Research, 2023 : In view of the problems of large volume, high energy consumption and difficult maintenance of electric field measurement sensors in existing power systems, non-contact miniature electric field sensors have become a hot topic in current research.
Guote Liu +5 more
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Detection of humidity ingress using online common-mode insulation impedance-monitoring system
The Journal of Engineering, 2019 Enhanced machine reliability through monitoring of its state of health is an emerging field of research. Ingress of contaminants such as moisture can effect electrical machine state of health and contribute to failure in winding insulation.
Igor Tsyokhla +3 more
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High Voltage, 2019 Determining the voltage ratio change is one of the core issues in the traceability of the DC voltage divider. Basing on the previous research results, this study proposes an improved DC voltage summation method to evaluate the voltage division ratio ...
Dengyun Li +5 more
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On Certain Means of Measuring and Regulating Electric Currents [PDF]
Scientific American, 1879 Abstract The dynamo-electric machine furnishes us with a means of producing electric currents of great magnitude, and it has become a matter of importance to measure and regulate the proportionate amount of current that shall be permitted to flow through any branch circuit, especially in such applications as the distribution of light ...
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Measurement of the Electric Current Distribution in an Anode [PDF]
, 2016 Carbon anode, which carries the electricity and provides the carbon necessary for the electrochemical reaction in the electrolytic cell, is an essential component of the primary aluminum production. Energy efficiency and environmental impact are still the key issues in modern aluminum smelters; thus, it is important to control the quality of anodes ...
Andoh, Marc Alain +5 more
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Current derivative measurement using closed-loop hall-effect current sensor
The Journal of Engineering, 2019 This paper discusses a method of the current derivative measurement using a standard closed-loop Hall-effect current sensor. The proposed method can operate with PWM-driven inverters and provides the estimation of motor-phase inductances required for an ...
A. Anuchin +5 more
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Electronics LettersTo improve the speed of mass transfer, a magnetic suspension platform (MSP) is used to transport the display chips. A novel 6‐DOF MSP is proposed in this paper. An improved Halbach array is used to supply the magnetic flux density. Two types of permanent
Shinan Cao +3 more
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A new method for electric energy measurement considering the influence of interharmonic
Diance yu yibiaoAmong existing mathematical models of electric energy measurement, either the full electric energy is calculated, or the fundamental active electric energy is conducted, or the fundamental and integer harmonic components of electric energy are separately
ZHAO Dongfang +5 more
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An Electro-Optic Sensor for Measurement of Intensive DC Electric Field
IEEE Photonics Journal, 2022 A lithium niobate (LN) integrated electro-optic (EO) sensor incorporated with a rotating shielding electrode has been designed, fabricated and experimentally demonstrated for measurement of intensive direct current (DC) electric field.
Jiahong Zhang, Fushen Chen
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