Application of a smart hall effect sensor system for 3-phase BLDC drives

Nama, Tako; Gogoi, Anup Kumar; Tripathy, Praveen

doi:10.1109/iris.2017.8250123

Cited by 23 publications

(4 citation statements)

References 4 publications

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“…Furthermore, the accuracy of measurement methods based on giant magneto-resistance and magneto-optical effects is not high as it depends on the stability of optical and magnetic materials [ 17 , 18 , 19 , 20 ]. Owing to the rapid development of semiconductor materials and power electronic technology, magnetic field sensors, especially hall sensors, have attracted much attention for DC current measurement [ 21 , 22 , 23 , 24 , 25 , 26 , 27 ]. As there is no iron core, the hall sensor is not susceptible to magnetic saturation and can be used to measure large DC currents.…”

Section: Introductionmentioning

confidence: 99%

Study of Current Measurement Method Based on Circular Magnetic Field Sensing Array

Zhang

et al. 2018

Sensors

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Classic core-based instrument transformers are more prone to magnetic saturation. This affects the measurement accuracy of such transformers and limits their applications in measuring large direct current (DC). Moreover, protection and control systems may exhibit malfunctions due to such measurement errors. This paper presents a more accurate method for current measurement based on a circular magnetic field sensing array. The proposed measurement approach utilizes multiple hall sensors that are evenly distributed on a circle. The average value of all hall sensors is regarded as the final measurement. The calculation model is established in the case of magnetic field interference of the parallel wire, and the simulation results show that the error decreases significantly when the number of hall sensors n is greater than 8. The measurement error is less than 0.06% when the wire spacing is greater than 2.5 times the radius of the sensor array. A simulation study on the off-center primary conductor is conducted, and a kind of hall sensor compensation method is adopted to improve the accuracy. The simulation and test results indicate that the measurement error of the system is less than 0.1%.

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Section: Introductionmentioning

confidence: 99%

Study of Current Measurement Method Based on Circular Magnetic Field Sensing Array

Zhang

et al. 2018

Sensors

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“…Karena rangkaian stator menggunakan konfigurasi star maka dibutuhkan 3 sensor yang akan bekerja bergantian sebagai on dan off pada kumparan [17]. Pada penelitian sebelumnya, kemampuan sensor hall effect tetap efektif meskipun salah satu sensornya rusak atau tidak berfungsi [18]. Perancangan rotor ada dua kondisi yaitu rotor dengan 4 magnet dan rotor dengan 8 magnet.…”

Section: B Desain Motor Brushless Direct Currentunclassified

Analisis Motor Brushless Direct Current Aksial Fluks 3 Fasa Menggunakan Magenet Permanen Neodymium Sebagai Prime Mover Generator

Sari¹,

Hadi²,

Cahyadi³

2020

JTE

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Peningkatan penggunaan motor konvensional menyebabkan peningkatan minyak bumi yang merupakan sumber daya alam yang tidak bisa diperbarui. Untuk mengatasi hal tersebut maka penggunaan motor konvensional diganti dengan motor listrik. Motor listrik yang sering digunakan adalah motor brush namun masih memiliki kekurangan yaitu terdapat rugi – rugi sikat. Sehingga dibuatlah motor brushless direct current untuk mengatasi hal tersebut. Motor yang dirancang pada penelitian memiliki spesifikasi 6 kumparan dengan jumlah magnet pada rotor 4 dan 8. Lilitan pada masing – masing kumparan adalah 450 lilitan dengan kawat email berdiameter 0,3 mm. Penelitian dilakukan dengan cara pengukuran dan perhitungan. Pengukuran meliputi pengukuran medan magnet, nilai tegangan motor, frekuensi dan kecepatan putar. Nilai perhitungan meliputi daya, torsi, frekuensi dan kecepatan putar motor. Pengujian dilakukan menggunakan 4 (empat) dan 8 (delapan) magnet bergantian serta dalam dua kondisi yaitu berbeban dan tanpa beban. Pengujian pertama pada tegangan sumber 24 Volt saat menggunakan 4 magnet dalam kondisi tanpa beban menghasilkan nilai torsi 1,09x10-3 Nm dan kecepatan putar 2794 RPM, saat keadaan berbeban menghasilkan nilai torsi 2,25x10-3 dan nilai kecepatan putar 1171 RPM. Pengujian kedua tengan tegangan sumber 24 Volt menggunakan 8 magnet dihasilkan nilai torsi 3,38x10-3 Nm dan kecepatan putar 2484 RPM, saat keadaan berbeban dihasilkan nilai torsi 7,4x10-3 Nm dan kecepatan putar motor 1410 RPM. Nilai torsi tertinggi yang dihasilkan yaitu 7,4x10-3 Nm dan nilai kecepatan putar tertinggi yang dihasilkan yaitu 2794 RPM. Kata Kunci—motor brushless direct current, torsi, kecepatan putar, magnet Neodymium

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“…Joo et al [9] implemented a device that can measure a small magnetic field by measuring a linear movement of the switching current by adding the spin Hall Effect to the abnormal Hall Effect of the perpendicular magnetic thin film. Nama et al (10) apply a smart Hall Effect sensor system used for sensing the rotor position in a 3-phase BLDC motor. The intelligent sensor system proposed allows the motor to continue working even when one of the Hall sensors is damaged and not working.…”

Section: Fig 1: Hall Effect Sensors Used In An Automotive Systemmentioning

confidence: 99%

Application of Hall Effect Sensor in temperature control valve of automotive Internal Combustion Engine

Bressan¹,

Costa²

2019

IJAERS

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The growing demand for new technological solutions in automobiles, often to replace mechanical with electromechanical solutions, seeks better system controls to improve fuel economy and reduce pollutant emissions, while also improving the comfort and safety of vehicle users. With the recent advances in microelectronics, many sensors are being used in unexpected applications, an example of which is the Hall Effect Sensor, which is increasingly used in vehicles due to its ease of application. The contribution of this work is the development of a temperature control valve (TCV) that replaces the thermostatic valve with a more accurate temperature control system, using a Hall Effect Sensor to control the flow of the engine cooling fluid. The implementation of the Hall Effect Sensor enables new functionality to the TCV, which previously had just two operative states (On and Off). In this way, it is possible to improve the temperature control of the combustion engine.

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Application of a smart hall effect sensor system for 3-phase BLDC drives

Cited by 23 publications

References 4 publications

Study of Current Measurement Method Based on Circular Magnetic Field Sensing Array

Study of Current Measurement Method Based on Circular Magnetic Field Sensing Array

Analisis Motor Brushless Direct Current Aksial Fluks 3 Fasa Menggunakan Magenet Permanen Neodymium Sebagai Prime Mover Generator

Application of Hall Effect Sensor in temperature control valve of automotive Internal Combustion Engine

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