Document Type : Research Paper
Authors
1 Affiliation: Department of Electrical Engineering, University of Technology, Baghdad, Iraq
2 Affiliation: Department of Electrical Engineering, University of Technology,Baghdad, Iraq
Abstract
BLDC motors are characterized by electronic commutation, which is performed by using an electric three-phase inverter. The direct control system of the BLDC motor consists of double loops; including the inner-loop for current regulating and outer-loop for speed control. The operation of the current controller requires feedback of motor currents; the conventional current controller uses two current sensors on the ac side of the inverter to measure the currents of two phases, while the third current would be accordingly calculated. These two sensors should have the same characteristics, to achieve balanced current measurements. It should be noted that the sensitivity of these sensors changes with time. In the case of one sensor fails, both of them must be replaced. To overcome this problem, it is preferable to use one sensor instead of two. The proposed control system is based on a deadbeat predictive controller, which is used to regulate the DC current of the BLDC motor. Such a controller can be considered as digital controller mode, which has fast response, high precision and can be easily implemented with microprocessor. The proposed control system has been simulated using Matlab software, and the system is tested at a different operating condition such as low speed and high speed.
Keywords
[2] V. Patel and A. K. Pandey, “Modeling and Simulation of Brushless DC Motor Using PWM Control Technique,” International Journal of Engineering Research and Applications (IJERA), Vol. 3, No. 3, pp. 612-620, 2013.
[4] M. Ebadpour, M. R. Feyzi, M. R. Bagherian and M. R. Alizadeh, “A Simple Position Sensorless Control Strategy for Radial-Flux Brushless DCMotor Drives Using Single Current Sensor,” Journal of Basic and Applied Scientific Research, Vol. 2, No. 5, pp. 4529-4541, 2012.
[5] Xia, “Permanent Magnetbrushless DC Motordrives and Controls,” John Wiley& Sons Singapore Pte.Ltd., 2012.
[6] Q. Wen, L. Zhu and C. Fu, “Research on deadbeat Current Control Strategy of Three-Phase PWM Voltage Source Rectifier,” Proceedings of the 2nd International Conference on Computer Science and Electronics Engineering (ICCSEE), pp. 1796-1772, 2013.
[7] H. Tan and S. L. Ho, “A Novel Single Current Sensor Technique Suitable for BLDCM Drives,” IEEE International Conference on Power Electronics and Drive Systems, Hong Kong, Vol. 8, No. 9, pp. 133-138, 1999.
[8] A. H. Niasar, A. Vahedi and H. Moghbeli, “Torque control of brushless DC motor drive based on DSP technology,” Proceeding of International Conference on Electrical Machines and Systems, Vol. 8, No. 11, pp. 524-528, Seoul, Korea 2007.
[9] P. Wipasuramonton, “Current-controlled PWM Technique for brushless DC motor drives with a single current sensing resistor,” National Electronics and Computer Technology Center (NECTEC), 2009.
[10] M. RezaFeyziand and M. Ebadpour, “A new single current strategy for high-performance brushless DC motor drives,” Canadian Conference on Electrical and Computer Engineering (IEEE CCECE), Vol. 8, No. 11, pp. 419-424, 2011.
[11] J. Moos, “Predictive Deadbeat Control for PMSM Drive,” Master's Thesis, Department of Energy Technology, Aalborg University, Denmark, 2014.
[12] Kumar, S. Kumar and N. Neogi, “Controller Design for Closed Loop Speed Control of BLDC Motor,” International Journal on Electrical Engineering and Informatics, Vol. 9, No. 1, pp. 146-160, March 2017.
[13] S. N. Vukosavić, “Digital Control of Electrical Drives,” Springer Science-Business Media,” LLC, 2007.
[14] M. S. Trivedi and R. K. Keshri, “Predictive Deadbeat Current Control in Stationary Plane for PM BLDC Motor Drive,” Annual Conference of the IEEE Industrial Electronics Society, Vol. 2, No. 17, pp. 6640-6645, 2017.
[15] S.A.KH. M. Niapour, GH. S. Garjan, M. Shafiei, M. R. Feyzi, S. Danyali, and M. B. Kouhshahi, “Review of Permanent-Magnet Brushless DC Motor Basic Drives Based on Analysis and Simulation Study,” International Review of Electrical Engineering (I.R.E.E.), Vol. 9, No. 5, pp. 930-957, 2014.
[16] M. M. Ezzaldean and Q. S. Kadhem, “Design of Control System for 4-Switch BLDC Motor Based on Sliding-Mode and Hysteresis Controllers,” Iraqi Journal of Computers, Communications, Control and System Engineering (IJCCCE), Vol. 19, No. 1, pp. 42-51, January 2019.
[17] H. Abed and M. M. Ezzaldean, “PSO-Based EKF Estimator Design for PMBLDC Motor,” Engineering and Technology Journal, Vol. 34, No. 8, pp. 1651-1665, 2016.
[18] R. PAŁKA and R. PIOTUCH, “Experimental verification of Dead-Beat predictive current controller for small power, low speed PMSM,” Polish Academy of Sciences, Vol. 67, No. 2, pp. 333-343, 2018.
)
