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Showing 1 to 20 of 50 for “"TK2000-2891 Dynamoelectric machinery and auxiliaries. Including generators, motors, transformers"”.
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Hybrid fuzzy- proportionl integral derivative controller (F-PID-C) for control of speed brushless direct curren motor (BLDCM)
… (PID) controllers (F-PID-C) is designed and analyzed for controlling speed of brushless DC (BLDC) motor. A simulation investigation of the controller for controlling the speed of BLDC motors is performed to beat the presence of nonlinearities and uncertainties in the system. The fuzzy …
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Hybrid optimisation electromagnetic interference shielding effectiveness:mechanical and physical performance of plaster mortar containing palm oil fuel ash using taguchi grey and taguchi-flower pollination algorithm methods
… interference (EMI) on human health and performance of electronic devices. The purpose of this research was to use palm oil fuel ash (POFA) as cement filler in plastering mortar to overcome the EMI issue. This research adopted Taguchi method with mix level design (L16 (44 22)) to …
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New structure of dual stator hybrid excitation flux switching motor for aircraft applications
Aircraft applications demand high reliability, high torque and power densities while aiming to reduce weight, complexity, fuel consumption, costs, and environmental impact. New electric driven system such as flux switching machine (FSM) has been developed which is capable to meet these requirements …
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A new three phase 6-slots 10-poles permanent magnet flux switching machine with inner rotor configuration
Effective use of energy permits industrial and commercial facilities to cut down production costs, boost profits, and stay competitive. Also, the majority of electrical energy consumed in most industrial facilities is used to run electric motors. There has been a recent interest in flux switching …
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Lightning impulse tests on air-breakdown level in point-plane electrode configuration
… amount of research work has been done to understand the fundamental characteristics of the electrical breakdown. Breakdown voltage is a phenomenon where the quantity of an electrical force is required to transform the electrical properties of an object. Many factors that lead to the breakdown …
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Three phase inverter for induction motor by using pi-repetitive controller with arduino
… of PI-Repetitive controller simulation and fabricating the hardware to control the speed of a three phase induction motor. The controller eliminates the periodic errors on the output current due to inverter current nonlinearity and load disturbances. The controller is implemented on a …
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Air breakdown characteristics in plane-plane and sphere gap electrode configuration under lightning impulse
… the air breakdown characteristics in plane-plane and sphere gap electrode configuration under lightning impulse. The breakdown in air (spark breakdown) is the transition of a non-sustaining discharge into a self�sustaining discharge. In electrical power system, high voltage power equipments are …
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Development of portable 10 stages Marx Generator
… voltage equipments are often placed in open air and they are often exposed to lightning strike as well as surge voltage. They are sustaining high surge voltage during the lightning phenomena. To achieve better protection of all such power equipments and quality power supply, these voltages should …
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Design of segmented outer rotor permanent magnet flux switching motor in transverse shape for high torque applications
… since the motor has high torque density and power. Outer rotor motors have performance indices that should be taken into consideration because not every machine is effective. Recently, outer rotor hybrid excitation flux switching motor (OR�HEFSM) in salient rotor has become attractive for …
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Improvement of distribution transformer fault analysis using FRA method
The distribution transformers are one of the most expensive components in the electrical power distribution system. During its lifetime, distribution transformers are exposed to several failures. For this reason, it is crucial to continuously monitor its condition. Frequency Response Analysis (FRA) …
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Advancement of a modular rotor permanent magnet flux switching machine for high torque performance
Usage of electric motors in electric vehicle applications have gained a lot of attention since the motor must possessed high torque density and power. Permanent magnet flux switching machines have attracted considerable interests in recent years since the flux focusing is utilizable, both armature …
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Hybrid fuzzy-proportionl integral derivative controller (F-PID-C) for control of speed brushless direct current motor (BLDCM)
… (PID) controllers (F-PID-C) is designed and analyzed for controlling speed of brushless DC (BLDC) motor. A simulation investigation of the controller for controlling the speed of BLDC motors is performed to beat the presence of nonlinearities and uncertainties in the system. The fuzzy …
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Cogging torque reduction of 6s-4p spoke-type IPMSM using a new combination of rotor design
… is one of the vital issues in permanent magnet motors (PMM). Reducing cogging torque, which may cause vibration and acoustic noises, has become an increasingly critical issue in PMM. Low cogging torque significantly reduces acoustic noises and vibration, and enhances the positioning control of …
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Self-synchronized converter for fast synchronization between low voltage microgrid and inverter connection
… between single-phase microgrid and inverter in low voltage, which is based on virtual synchronous converter (VSCon) technique is been developed. This technique does not require any phase locked loop (PLL) circuit as an external control structure for the synchronization of the …
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The characteristic of frequency response on winding faults and configurations of transformer
… of several winding configurations of power transformers using Frequency Response Analysis (FRA). The frequency response provides indications of any mechanical and electrical changes in the transformer’s active parts. Three units of three-phase transformers were tested with the aim to …
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Design and development of a small-scale 12S-14P outer rotor HEFSM
Simulation, prototype experimental, and mathematical modelling is an essential process to provide sufficient evidence before a full-scale development or mass production. Hence, this study focuses on validating a small scale of 12S-14P outer-rotor hybrid excitation flux switching motor (OR-HEFSM) …
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Development of a new single-phase field excitation flux switching motor topology with segmental rotor
Diverse topology of three-phase and single-phase Field Excitation Flux Switching Machines (FEFSMs) that have been developed recently have several advantages such as variable flux capability and the single piece structure of rotor suitable for high-speed applications. However, a salient rotor …
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Harmonic elimination by switching angle optimization technique for multilevel inverter
The needs for a free harmonic and high rating power source is increased to meet the required industry applications. In this project, a 7-level Cascaded H-Bridge Multilevel Inverter (CHBMLI) with two various controllers are presented. Proportional Integral (PI) and Artificial Neural Network (ANN) …
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Symmetric and asymmetric multilevel inverter topologies with reduced number of switching devices structure for high power density achievement
This study presents a proposed symmetric and asymmetric multilevel inverter topologies using reduced number of switching devices (RNSD) structure for high power density achievement. Principally, asymmetric multilevel inverter (AMLI) topology is able to produce higher output voltage level without …
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Investigating the application of frequency response analysis for diagnosing tap changer on power transformer
Electrical distribution power transformers operate on transmission and distribution systems which require different voltage levels. A sufficiently constant level of grid potential is maintained by mechanically regulating the turn ratio in the transformer winding, which can be achieved through OLTC …
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