Sinusoidal Control of a Brushless DC Motor with Misalignment of Hall Sensors

Kolano, Krzysztof; Drzymała, Bartosz; Gęca, Jakub

doi:10.3390/en14133845

Cited by 3 publications

(4 citation statements)

References 20 publications

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“…In [12][13][14], direct-current motor and step motor-based servo drive systems are adopted for actuation, respectively. Although they can satisfy the first requirement above, it is difficult to control their shafts to stand still at one particular position accurately because rotor position sensors are usually not employed in these systems for closed-loop position control [15][16][17][18]. In this case, over-adjustment is inclined to occur inevitably, regardless of the forward and reverse operations, leading to ineradicable position deviations.…”

Section: Tuning Methods Features Advantages Disadvantagesmentioning

confidence: 99%

Intelligent Permanent Magnet Motor-Based Servo Drive System Used for Automated Tuning of Piano

Zhou

2021

Energies

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This paper presents an intelligent permanent magnet synchronous motor-based servo drive system used in automated piano tuning applications. The permanent magnet synchronous motor-based drives are able to improve the accuracy of the piano tuning process in comparison with the traditional direct-current motor-based and step motor-based servo drives. To explain the techniques, firstly, the structure and principles of the automated piano tuning devices with a surface-mounted permanent magnet synchronous motor-based drive system integrated are introduced, illustrating that it is feasible to implement the proposed piano tuning strategy. Secondly, the piano tuning devices have two functions: low-speed rotation and position holding. To ensure that the surface-mounted permanent magnet synchronous motor can rotate stably over the low-speed range with strong anti-interference capacity, a double closed-loop speed-regulation-based control scheme is employed. And to ensure high position control performance, a fuzzy-adaptive triple closed-loop position-regulation-based control scheme is employed. It terms of the control schemes, it deserves to be mentioned that main contributions include, firstly, the parameters of the proportional integral controllers in the double closed-loop speed-regulation structure is tuned relying on both stability and bandwidth analyses. Then, a fuzzy-adaptive proportional integral controller is specially-designed for the triple closed-loop position-regulation to adapt to the piano tuning applications. Simulation is conducted on a 20 rpm three-phase permanent magnet synchronous motor servo drive-based piano tuning system to validate the proposed piano tuning method and to verify the proposed control techniques.

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Section: Tuning Methods Features Advantages Disadvantagesmentioning

confidence: 99%

Intelligent Permanent Magnet Motor-Based Servo Drive System Used for Automated Tuning of Piano

Zhou

2021

Energies

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“…with I the identity matrix of n dimension. Therefore, the disturbance term, τL , can be reconstructed using the states of the differentiator (16) as…”

Section: Estimated States and Load Torque Reconstructionmentioning

confidence: 99%

“…More recently, ref. [16] estimates the position using the calculated rotational rotor's speed and elapsed time.…”

Section: Introductionmentioning

confidence: 99%

Load Torque Observer for BLDC Motors Based on a HOSM Differentiator

Coronado-Andrade,

de la Guerra,

Alvarez-Icaza

2023

Machines

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An observer is proposed for a trapezoidal brushless DC motor composed of a cascade connection of a reduced-order Luenberger observer and a high-order sliding mode (HOSM) differentiator. This configuration can estimate the angular velocity and reconstruct the load torque, key elements for the control of this type of motor, under the mild assumption that the variable load torque and its k-th time derivatives are bounded. The proposed observer was tested on an experimental test bench based on Texas Instruments (TI) High Voltage Digital Motor Control (HVMTR Kit) using a Delfino F28379D micro controller. The results show that the velocity and load torque can be properly estimated, despite the presence of noise in the current measurements.

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“…Many publications emphasize the relatively low accuracy in determining the position of the shaft by such a system, due to the imprecision of the sensor's arrangement [2,3], as well as the execution of the rotating magnetic element itself [4]. This causes a number of problems in the operation of the drive system in a closed feedback loop, such as torque pulsations [5] or increased heating of the motor and inverter. This is because the signals from Hall sensors are used to determine the rotational speed of the motor shaft.…”

Section: Introductionmentioning

confidence: 99%

Influence of the Placement Accuracy of the Brushless DC Motor Hall Sensor on Inverter Transistor Losses

et al. 2022

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Low-power BLDC motors are often and willingly used in many drive devices due to their functional advantages. They are also used in advanced positioning systems, where their good dynamic performance parameters are used. The control systems use shaft position sensors mounted on motors, the structure of which is based on magnetic elements and Hall sensors. The aim of this article was to investigate the influence of the BLDC motor quality on the correct operation of the control semiconductor system. The article presents the effect of BLDC motor shaft observation system’s inaccuracies on the friction and current amplitudes of individual inverter keys. Waveforms of the controller phase currents are considered and recorded on a test bench that allows precise sensor position changes. In addition, the effect of sensor misalignment on power losses in individual inverter transistors is investigated. The article shows a significant influence of the motor shaft observation system’s assembly accuracy on the current amplitudes of individual driver transistors and their power losses, which makes it necessaryto consider these parameters when constructing power electronic systems.

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Sinusoidal Control of a Brushless DC Motor with Misalignment of Hall Sensors

Cited by 3 publications

References 20 publications

Intelligent Permanent Magnet Motor-Based Servo Drive System Used for Automated Tuning of Piano

Intelligent Permanent Magnet Motor-Based Servo Drive System Used for Automated Tuning of Piano

Load Torque Observer for BLDC Motors Based on a HOSM Differentiator

Influence of the Placement Accuracy of the Brushless DC Motor Hall Sensor on Inverter Transistor Losses

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