Bi-Directional Position and Speed Estimation Algorithm for Sensorless Control of BLDC Motor
The observer design for estimation of back EMF to control the Brushless DC (BLDC) motor is proposed in this paper. Rotor position of the BLDC motor is estimated using the sequence of estimated back EMF. During speed reversal of motor, the actual and estimated values of speed fail to track the refere...
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| Format: | Article |
| Language: | English |
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Riga Technical University Press
2018-12-01
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| Series: | Electrical, Control and Communication Engineering |
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| Online Access: | https://doi.org/10.2478/ecce-2018-0015 |
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| author | Astik Mitesh B. Bhatt Praghnesh Bhalja Bhavesh R. |
| author_facet | Astik Mitesh B. Bhatt Praghnesh Bhalja Bhavesh R. |
| author_sort | Astik Mitesh B. |
| collection | DOAJ |
| description | The observer design for estimation of back EMF to control the Brushless DC (BLDC) motor is proposed in this paper. Rotor position of the BLDC motor is estimated using the sequence of estimated back EMF. During speed reversal of motor, the actual and estimated values of speed fail to track the reference speed and if corrective action is not taken by the observer, the motor goes into the unstable region. To overcome this problem, the speed estimation algorithm is proposed for BLDC motor control during its speed reversal operation. Infinite Impulse Response (IIR) Butterworth first order low-pass filters are used in the observer for smoothing the estimated back EMFs of the BLDC motor. A new controller scheme based on Modified Hybrid Fuzzy PI (MHFPI) controller is proposed to control the speed of the BLDC motor. The effectiveness of the proposed method has been validated through simulations for different disturbances such as step changes in the reference speed and load torque of the motor and results are compared with the existing methods. |
| format | Article |
| id | doaj-art-4d8734d6b3ed4b06b7481e8a78a38ba2 |
| institution | Kabale University |
| issn | 2255-9159 |
| language | English |
| publishDate | 2018-12-01 |
| publisher | Riga Technical University Press |
| record_format | Article |
| series | Electrical, Control and Communication Engineering |
| spelling | doaj-art-4d8734d6b3ed4b06b7481e8a78a38ba22025-01-02T16:30:37ZengRiga Technical University PressElectrical, Control and Communication Engineering2255-91592018-12-0114212513310.2478/ecce-2018-0015ecce-2018-0015Bi-Directional Position and Speed Estimation Algorithm for Sensorless Control of BLDC MotorAstik Mitesh B.0Bhatt Praghnesh1Bhalja Bhavesh R.2Assistant Professor, A. D. Patel Institute of Technology, Gujarat, IndiaAssociate Professor, Pandit Deendayal Petroleum University, Gandhinagar, IndiaAssociate Professor, Indian Institute of Technology, Roorkee, IndiaThe observer design for estimation of back EMF to control the Brushless DC (BLDC) motor is proposed in this paper. Rotor position of the BLDC motor is estimated using the sequence of estimated back EMF. During speed reversal of motor, the actual and estimated values of speed fail to track the reference speed and if corrective action is not taken by the observer, the motor goes into the unstable region. To overcome this problem, the speed estimation algorithm is proposed for BLDC motor control during its speed reversal operation. Infinite Impulse Response (IIR) Butterworth first order low-pass filters are used in the observer for smoothing the estimated back EMFs of the BLDC motor. A new controller scheme based on Modified Hybrid Fuzzy PI (MHFPI) controller is proposed to control the speed of the BLDC motor. The effectiveness of the proposed method has been validated through simulations for different disturbances such as step changes in the reference speed and load torque of the motor and results are compared with the existing methods.https://doi.org/10.2478/ecce-2018-0015brushless motorestimationsensorless controlmatlab |
| spellingShingle | Astik Mitesh B. Bhatt Praghnesh Bhalja Bhavesh R. Bi-Directional Position and Speed Estimation Algorithm for Sensorless Control of BLDC Motor Electrical, Control and Communication Engineering brushless motor estimation sensorless control matlab |
| title | Bi-Directional Position and Speed Estimation Algorithm for Sensorless Control of BLDC Motor |
| title_full | Bi-Directional Position and Speed Estimation Algorithm for Sensorless Control of BLDC Motor |
| title_fullStr | Bi-Directional Position and Speed Estimation Algorithm for Sensorless Control of BLDC Motor |
| title_full_unstemmed | Bi-Directional Position and Speed Estimation Algorithm for Sensorless Control of BLDC Motor |
| title_short | Bi-Directional Position and Speed Estimation Algorithm for Sensorless Control of BLDC Motor |
| title_sort | bi directional position and speed estimation algorithm for sensorless control of bldc motor |
| topic | brushless motor estimation sensorless control matlab |
| url | https://doi.org/10.2478/ecce-2018-0015 |
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