A New Approach of Minimizing Commutation Torque Ripple for Brushless DC Motor Based on DC–DC Converter

Shi, Tingna; Guo, Yuntao; Song, Peng; Xia, Changliang

doi:10.1109/tie.2009.2038335

Cited by 187 publications

(96 citation statements)

References 20 publications

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“…For the current analysis, it is assumed that the motor is unsaturated, armature reaction is negligible, stator winding is symmetrical, the resistances and inductances of the motor windings are constant and the motor exhibits no cogging torque. The voltage equation for the BLDC motor can be represented by (1) [8] and [17] …”

Section: Analysis Of Commutation Torque Ripple In Bldcmmentioning

confidence: 99%

“…The problem of imperfection in the motor design is overcome in [13] and [14], wherein [13] suggests application of Taguchi method in designing the shape of permanent magnets and in [14] a segmented permanent magnet structure is proposed which significantly reduced the commutation torque ripple. Some researches [3], [15] - [17] introduced novel power converter topologies and PWM techniques for controlling the input voltage of the BLDCM drive. In [3], the inverter is operated in 120 mode for lower speed range of the machine and in 180 mode for higher speed range thereby optimizing the commutation torque ripple.…”

Section: Introductionmentioning

confidence: 99%

“…However the methods proposed in [15] and [16] suffer from slow voltage adjustment, and therefore, they can only achieve satisfactory torque pulsation suppression in low-or high-speed regions. This problem is alleviated in [17], [20] whereby a SEPIC converter with a switch over MOSFET is used to implement the dc link voltage adjustment. However, the power converter requires a very high direct dc voltage as input during non-commutation period and another boosted voltage boosted through SEPIC converter during the commutation period.…”

Section: Introductionmentioning

confidence: 99%

“…Of the entire high-boost ratio non-isolated DC-DC converter topologies published [19], a combination of fly-back and boost converter is highly efficient as it increases the boost ratio with lower cost and greater efficiency [18]. Besides, in the proposed topology, the need of an additional switch selection circuit as used in [17] is overcome by operating the converter with two different duty ratios one during non-commutation period, and the other during commutation period. Simulation and experimental results show that compared with common the dc-dc converter topologies, the proposed converter operated with suitable duty ratio control can reduce commutation torque ripple significantly.…”

Section: Introductionmentioning

confidence: 99%

“…A high voltage input (4E m ) is to be injected to the inverter during that period [16]. Instead of using two different converters or an additional voltage source as given in [17], it is advantageous to vary the output of the DC-DC converter by suitably adjusting the duty ratio of the converter. Hence an arrangement is required to detect the commutation period of the BLDC motor.…”

mentioning

confidence: 99%

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Analysis and Implementation of a High Boost Ratio DC-DC Converter for Minimizing Commutation Torque Ripple in Brushless DC Motor

Raja

Geethalakshmi

2016

IJPEDS

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Brushless dc motor still suffers from commutation torque ripple, which primarily depends on transient line current in the commutation interval. In order to control the incoming and outgoing phase currents to change at the same rate during commutation, this paper presents a novel high boost ratio DC-DC circuit topology in the front end of the inverter. With a suitable closed loop control scheme, the proposed high boost ratio DC-DC converter is operated with two different duty ratios one during commutation period and the other during non commutation period. The cause of commutation ripple is analyzed, and the way to adjust the duty ratio for obtaining the desired dc link voltage is introduced in detail. Finally, simulation and experimental results show that, compared with the existing dc-dc converter topologies, the proposed method can obtain the desired voltage much faster and minimize commutation torque ripple more efficiently. Keyword:Brushless INTRODUCTIONBrushless dc motors (BLDCM) possessing simple structure, high power density, high torque/current ratio, robustness, and better dynamics have been widely used in all kinds of areas, such as electric vehicles, robotics, small actuators, industry and automotive electronics [1]- [3]. The performance of such motors has been significantly improved due to the great development of power converters, magnetic performance of magnets, and motion control technology in recent years [4]- [6]. However, commutation torque ripple has always been one major factor in preventing BLDCM from achieving high performance. The causes for torque ripple in BLDCM are the imperfection of motor design and manufacture, non-ideal EMF and unequal current sharing between the phases during commutation [7] and [8]. Since torque smoothness is an essential requirement for such high-performance applications, a wide variety of techniques have been proposed by many researchers during the past two decades to minimise the torque ripple [9]-[14].In recent years, multilevel inverters have gained much attention in the application areas of BLDC motor drives [21]. The problem of imperfection in the motor design is overcome in [13] [3], the inverter is operated in 120 mode for lower speed range of the machine and in 180 mode for higher speed range thereby optimizing the commutation

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Section: Analysis Of Commutation Torque Ripple In Bldcmmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

See 3 more Smart Citations

Analysis and Implementation of a High Boost Ratio DC-DC Converter for Minimizing Commutation Torque Ripple in Brushless DC Motor

Raja

Geethalakshmi

2016

IJPEDS

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Front‐endzeta converter basedBLDCMdrive for efficient reduction of commutation current ripple usingnotch‐filter

Kumar

Gupta

Tiwari

2020

Int Trans Electr Energ Syst

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Summary Reduction of commutation current ripple (CCR) in the brushless direct current motor (BLDCM) drive using dc‐dc converter based topologies is achieving widespread popularity. However, undesired alternating current (AC) components are presented in the dc‐link voltage (DCLV) across the capacitor of the dc‐dc converter, which leads to a destabilization of the power supply during the commutation interval. In addition, unwanted audible noise and speed regulation occur which deteriorates the motor performance. In order to encounter these issues, different conventional compensation techniques based on the low‐pass filter (LPF) has been proposed. However, the LPF requires a close relation between dynamic coupling and active compensation. In view of the limitation, this paper proposes a notch‐filter to stabilize the DCLV. Performance of the notch‐filter is tested on a configuration of the BLDCM based on the front‐end zeta (FEZ) converter and DCLV selector circuit. The notch‐filter is used to stabilize the DCLV, whereas the DCLV selector circuit is employed to draw the regulated voltage drawn from the FEZ converter. Simulation and experimental results verify the effectiveness of the proposed control scheme for the BLDCM drive. The simulation and experimental results clearly reveal that the notch‐filter along with FEZ converter effectively stabilized the DCLV and alleviate the CCR.

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An economical and simple strategy for overcoming the Hall sensor faults in three phase brushless DC motor drive

Verma,

Mitra,

Bhat

et al. 2024

Circuit Theory & Apps

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SummaryBrushless DC motors (BLDCs) are highly efficient and have the least maintenance requirement due to which they have replaced many conventional AC motors in various applications like electric vehicles, fans, water pumps, and home appliances. However, like all conventional motors, performance degradation of the BLDC motors can occur due to faults like Hall sensors failure, commutation switch failure, and stator‐winding failure. Among all these failures, this paper focuses on Hall sensor failures and the execution of fault tolerant control. Hall sensors produce an output after every 60° of rotation of the rotor, generating six sequences in one electrical cycle. In this study, each sequence is defined as a sector, which corresponds to the rotor position. Based only on this sector information in each electrical cycle, this paper proposes an uncomplicated detection strategy for Hall sensor fault, which is independent of motor loading and high‐performance processing unit. Along with the diagnosis, an improved faulty signal reconstruction is implemented, which bypasses the fault and continues a smooth performance of the motor. The proposed detection and reconstruction strategies have been simulated in MATLAB Simulink 2020, and the experimental analysis has been conducted to validate the proposed strategies.

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A New Approach of Minimizing Commutation Torque Ripple for Brushless DC Motor Based on DC–DC Converter

Cited by 187 publications

References 20 publications

Analysis and Implementation of a High Boost Ratio DC-DC Converter for Minimizing Commutation Torque Ripple in Brushless DC Motor

Analysis and Implementation of a High Boost Ratio DC-DC Converter for Minimizing Commutation Torque Ripple in Brushless DC Motor

Front‐endzeta converter basedBLDCMdrive for efficient reduction of commutation current ripple usingnotch‐filter

An economical and simple strategy for overcoming the Hall sensor faults in three phase brushless DC motor drive

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