Speed Control of an Eleven-Phase Brushless DC Motor

Azadi, Morteza; Darabi, Ahmad

doi:10.7763/ijiee.2013.v3.338

Cited by 2 publications

(2 citation statements)

References 13 publications

(13 reference statements)

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“…The commutation interval for a three-phase winding is 60°electrical. The pairing of direct current and a trapezoidal BEMF allows the generation of a fixed torque [20]. As the current is created instantly in a motor stage in practice, each 60-degree phase commutation contains a torque ripple.…”

Section: Proposed System With Bldc Motor Loadmentioning

confidence: 99%

DC-Link Capacitor Optimization in AC–DC Converter by Load Current Prediction

Nijil¹,

Selvan²

2023

Intelligent Automation &Amp; Soft Computing

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Alternating Current-Direct Current (AC-DC) converters require a high value bulk capacitor or a filter capacitor between the DC-DC conversion stages, which in turn causes many problems in the design of a AC-DC converter. The component package size for this capacitor is large due to its high voltage rating and capacitance value. In addition, the high charging current creates more problems during the product compliance testing phase. The shelf life of these specific high value capacitors is less than that of Multilayer Ceramic Capacitors (MLCC), which limits its use for the highly reliable applications. This paper presents a feasibility study to overcome these two problems by adding a few sensing mechanisms to the typical AC-DC converter topology. In majority of the AC-DC converter, Al-Elko capacitor takes approximately 3% to 5% of the converter size. The proposed method reduces this to approximately 50% size and so it effectively approximates 2% to 3% size reduction in converter size. The proposed method basically works based on the load current prediction method and hence it is highly suitable for the constant load application. Moreover, the converter response time increases in this method, which limit its application in high-speed systems. The high temperature application of Al-Elko capacitor is limited because of its poor performance, which is significantly rectified by replacing the Al-Elko with MLCC as it delivers good performance in high temperature.

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Section: Proposed System With Bldc Motor Loadmentioning

confidence: 99%

DC-Link Capacitor Optimization in AC–DC Converter by Load Current Prediction

Nijil¹,

Selvan²

2023

Intelligent Automation &Amp; Soft Computing

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show abstract

“…The lead between rotor and rotating field must be controlled to produce torque and this synchronization implies accurate knowledge of rotor position. For this reason, three Hall sensors are used to detect rotor orientation and speed very precisely by measuring variations in the magnetic field [12][13][14][15][16][17]. The BLDC motor control can be done in sensor or sensor-less mode; the advantage of sensor-less BLDC motor control is that the sensing part can be omitted and thus overall costs can be reduced, on the contrary the disadvantages are higher requirements for control algorithms and more complicated electronics.…”

Section: Introductionmentioning

confidence: 99%

Hardware and Software Solution Developed in Arm Mbed Environment for Driving and Controlling DC Brushless Motors Based on ST X-Nucleo Development Boards

Primiceri

Visconti

Melpignano

et al. 2016

International Journal on Smart Sensing and Intelligent Systems

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-Aim of this work is the design and realization of a driving system for monitoring and controlling of a BLDC motor with Hall sensors embedded. The realized system is composed by three principal blocks: the control electronic board, the power driving board and the BLDC motor. The first block is based on the STM32 Nucleo development board assembled with the second one, the ST-X-Nucleo-IHM07M1 motor driver expansion board which integrates an L6230 IC driver. The used BLDC motor is the DF45M024053-A2 model provided by Nanotec. The firmware, needed to properly control motor operation, was developed in ARM mbed environment, a development tool available on cloud which allows to send the .bin file (obtained after firmware compilation) directly to the STM32 development board, regarded from operating system, once connected via USB to PC, simply as an external memory. By PC connected via USB with STM32 board, the user can choose the motor rotation direction, set the desired rpm value and, by varying potentiometer value located on board, change the rotation speed. Furthermore, different controls are performed during motor operation such as on PWM duty-cycle value (if it is equal to 100% , then power supply is removed), on temperature value of L6230 IC driver and a control of motor rotation; in this latter case, if BLDC motor is stalled for a time period higher than 3 seconds, then the power supply is interrupted in order to safeguard the motor/system integrity.

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Speed Control of an Eleven-Phase Brushless DC Motor

Cited by 2 publications

References 13 publications

DC-Link Capacitor Optimization in AC–DC Converter by Load Current Prediction

DC-Link Capacitor Optimization in AC–DC Converter by Load Current Prediction

Hardware and Software Solution Developed in Arm Mbed Environment for Driving and Controlling DC Brushless Motors Based on ST X-Nucleo Development Boards

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