Sensorless starting method for Brushless DC Motors using 180 degree commutation

Noroozi, Mohammad Ali; Moghani, Javad Shokrollahi; Monfared, J Mili; Givi, Hadi

doi:10.1109/pedstc.2012.6183298

Cited by 9 publications

(3 citation statements)

References 9 publications

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“…180° commutation mode is generally used to control the induction electrical machines and also is used to drive BLDC motor. In this mode, the three stator phase windings are always energized therefore there is no available gap to measure back-EMF directly [17]. There are six commutation steps given in Figure 5(a).…”

Section: ° Commutation Mode (180° Komütasyonmentioning

confidence: 99%

Performance Evaluation of Brushless Direct Current Motor Control Methods through Low-Cost Microcontroller-Based Real-Time Experiments

YORAT,

ÖZBEK,

SARIBULUT

2023

Gazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım Ve Teknoloji

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Brushless direct current (BLDC) motors are high efficiency synchronous motors that are employed in a variety of applications due to prominent features such as long operational life, low maintenance requirements, and great dynamic response. BLDC motors are driven by energizing the motor stator windings with an inverter circuit. To commute the inverter switches, the trapezoidal (120°) method is generally used by considering the back electromagnetic force induced on unenergized phase of BLDC. Furthermore, depending on the application requirements, alternative commutation modes (CM) such as 180°, 150°, and sinusoidal-based approaches are utilized. In the literature, the performance comparison of some CMs was studied for two-phase on operation and three-phase on operation mode as a switching pattern. However, only a few research assessed the performance of two or three commutation modes simultaneously. In this study, the performance comparison of pulse width modulation (PWM) based commutation modes are examined by considering 120°, 180°, 150° modes, and sinusoidal PWM. In this scope, it is the first time that direct digital synthesis (DDS) is addressed as a BLDC control algorithm in a performance comparison study. In experimental studies, a simple and a low-cost drive circuit is designed to acquire the case results. According to the results, the proposed DDS-based sine commutation method is more efficient than other commutation methods and it has lower power consumption at both low and high speeds also a wider operable speed range.

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Section: ° Commutation Mode (180° Komütasyonmentioning

confidence: 99%

Performance Evaluation of Brushless Direct Current Motor Control Methods through Low-Cost Microcontroller-Based Real-Time Experiments

YORAT,

ÖZBEK,

SARIBULUT

2023

Gazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım Ve Teknoloji

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“…When the motor is running at a minimum speed, motor signals have a detectable level and a closed-loop control mode can be applied [24]. Other methods are based on the saturation effect of the stator iron core [25] or in a 180-degree commutation scheme [26] for improving the use of machine capacity regarding to the 120-degree method. Table 3.…”

Section: Starting From Standtillmentioning

confidence: 99%

Sensorless Detection of Position and Speed in Brushless DC Motors using the Derivative of Terminal Phase Voltages Technique with a Simple and Versatile Motor Driver Implementation

Gamazo-Real¹,

Gil²

2015

Journal of Electrical Engineering and Technology

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-The detection of position and speed in BLDC motors without using position sensors has meant many efforts for the last decades. The aim of this paper is to develop a sensorless technique for detecting the position and speed of BLDC motors, and to overcome the drawbacks of position sensorbased methods by improving the performance of traditional approaches oriented to motor phase voltage sensing. The position and speed information is obtained by computing the derivative of the terminal phase voltages regarding to a virtual neutral point. For starting-up the motor and implementing the algorithms of the detection technique, a FPGA board with a real-time processor is used. Also, a versatile hardware has been developed for driving BLDC motors through pulse width modulation (PWM) signals. Delta and wye winding motors have been considered for evaluating the performance of the designed hardware and software, and tests with and without load are performed. Experimental results for validating the detection technique were attained in the range 5-1500 rpm and 5-150 rpm under no-load and full-load conditions, respectively. Specifically, speed and position square errors lower than 3 rpm and between 10º-30º were obtained without load. In addition, the speed and position errors after full-load tests were around 1 rpm and between 10º-15º, respectively. These results provide the evidence that the developed technique allows to detect the position and speed of BLDC motors with low accuracy errors at starting-up and over a wide speed range, and reduce the influence of noise in position sensing, which suggest that it can be satisfactorily used as a reliable alternative to position sensors in precision applications.

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“…As the name suggests, brushless DC motor is free from mechanical brushes & do not require brushes for process of commutation; instead, BLDCM utilizes sensor technique to perform electronic commutation. The BLDC motors have lots of advantages over conventional motors [1,2]. Schematic diagram of six switch BLDC motor is as shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

Speed Control of Brushless DC Motor Using Modified Genetic Algorithm Tuned Fuzzy Controller

Rawat

Azeem

2020

CJAST

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In the last decade with increasing motor application domain, need towards usage of precisely controlled, noise free, highly efficient and high starting torque motors also increases, as a result dedicated applications has fascinated the researcher toward brushless DC motor. Brushless DC motors can act as suitable alternative to the traditional Brushed direct current motor, Induction Motor etc. This research paper inspects the ease and effectiveness of modified queen bee based GA tuned fuzzy controller and shows the performance of a proposed controller under diverse speed settings. A comparative study with conventional PI controller shows effectiveness of modified queen bee based GA Tuned Fuzzy controller, in terms of parameter like peak overshoot and settling time. MATLAB/SIMULINK Environment is used for optimization and modeling of Brushless DC motor drive.

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Sensorless starting method for Brushless DC Motors using 180 degree commutation

Cited by 9 publications

References 9 publications

Performance Evaluation of Brushless Direct Current Motor Control Methods through Low-Cost Microcontroller-Based Real-Time Experiments

Performance Evaluation of Brushless Direct Current Motor Control Methods through Low-Cost Microcontroller-Based Real-Time Experiments

Sensorless Detection of Position and Speed in Brushless DC Motors using the Derivative of Terminal Phase Voltages Technique with a Simple and Versatile Motor Driver Implementation

Speed Control of Brushless DC Motor Using Modified Genetic Algorithm Tuned Fuzzy Controller

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