An Adaptive Delay Compensated Position Sensorless PMBLDC Motor Drive With Regenerative Braking for LEV Application

Saha, Biswajit; Singh, Bhim

doi:10.1109/tec.2023.3268617

Cited by 1 publication

(2 citation statements)

References 29 publications

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“…When S pH = 0, as shown in Figure 5b, u pn = 0. Analogous analysis shows that the current change rate of the conducting phase is consistent with that shown in Equation (15). Therefore, when S pH is turned off, the increase or decrease of the motor conducting phase current is related to the speed, which affects the controllability of the motor braking torque.…”

Section: Controllability Analysis Of Plug Braking Torque In Normal Co...supporting

confidence: 63%

“…When the BLDCM operates in the electrical braking mode, the available electrical braking modes include regenerative braking, dynamic braking, and plug braking. Regenerative braking is a process whereby the mechanical energy of the motor system is converted into electrical energy and subsequently fed back to the energy storage elements of the power supply (e.g., batteries or supercapacitors) via a hardware circuit [15][16][17][18][19]. Dynamic braking is a technique that involves connecting switches and braking resistors in series in the dc-link circuit.…”

Section: Introductionmentioning

confidence: 99%

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Overvoltage Avoidance Control Strategy for Braking Process of Brushless DC Motor Drives with Small DC-Link Capacitance

Chen,

Wu,

et al. 2024

Actuators

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Single-phase input rectifier brushless DC motor drives with a small film capacitor have many advantages, such as high power density and high reliability. However, when the motor system operates in regenerative braking mode, the dc-link capacitor with reduced capacitance may suffer from overvoltage without adding additional hardware circuits. At the same time, the braking torque control of the motor will be affected by speed variations. In order to ensure smooth and reliable operation of the motor system, an anti-overvoltage braking torque control method is proposed in this article. The relationship among the dc-link capacitance, the dc-link capacitor voltage, and the speed during regenerative braking is analyzed quantitatively, and the speed at which the regenerative braking is switched to the plug braking is obtained, which in turn consumes the capacitor energy to avoid dc-link overvoltage. Additionally, based on the relationship between the controllability of the braking torque and the speed, a reference value of the braking current that matches the speed is designed. The proposed method makes use of the capacitor’s energy storage during regenerative braking. Meanwhile, it mitigates the impact of motor speed on braking torque. Finally, the effectiveness of the proposed method is verified on a motor platform equipped with the dc-link film capacitor.

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Section: Controllability Analysis Of Plug Braking Torque In Normal Co...supporting

confidence: 63%

Section: Introductionmentioning

confidence: 99%

Overvoltage Avoidance Control Strategy for Braking Process of Brushless DC Motor Drives with Small DC-Link Capacitance

Chen,

Wu,

et al. 2024

Actuators

View full text Add to dashboard Cite

show abstract

An Adaptive Delay Compensated Position Sensorless PMBLDC Motor Drive With Regenerative Braking for LEV Application

Cited by 1 publication

References 29 publications

Overvoltage Avoidance Control Strategy for Braking Process of Brushless DC Motor Drives with Small DC-Link Capacitance

Overvoltage Avoidance Control Strategy for Braking Process of Brushless DC Motor Drives with Small DC-Link Capacitance

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