期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2014
期号：ICETS
页码：976
出版社：S&S Publications
摘要：Brush Less Direct Current (BLDC) motorsare attaining higher priority in industrial automation,computers, aerospace, military, household applianceand traction applications because of its high efficiency,high power density and low maintenance cost. Thismakes the control of BLDC motor in all the fourquadrants very vital. To control a BLDC machine, it isgenerally required to measure the speed and position ofrotor by using the sensor. Using the measured value ofrotor position, each inverter phase acting at precisetime will be commutated. This paper deals with thedigital control of three phase BLDC motor in all fourquadrant operation. The motor is controlled in all thefour quadrants without any loss of power; in fact energyis conserved during the regenerative period. Thisenergy is stored in a battery storage system duringregenerative period and can be fed back to the invertermains during shortage of supply from the source. TheFPGA controller is implemented which is moreadvantageous over other conventional controllers as itis computationally intensive, highly parallelizable tasks,best in class accuracy, reliability and maintenance. A PIcontroller in closed loop configuration is used for speedcontrol. The torque ripple in each quadrant operation isalso reduced using a closed loop operation with the aidof a low pass filter. The operation modes of theproposed system are simulated using MATLAB andresults are validated.
关键词：BLDC motor; FPGA; PI Controller; and;Regenerative breaking
