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RTOS Based Dynamic Scheduler in Power Quality Applications

Journal: International Journal of Scientific Engineering and Technology (IJSET) (Vol.2, No. 6)

Publication Date:

Authors : ;

Page : 554-559

Keywords : ARM controller; Switched capacitor bank; SPI protocol; Round robin; Power factor correction; Task scheduling;

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Abstract

? In this modern world, there has been a great deal of focus on power quality management in industrial applications. The embedded software application requires performing a task which is efficiently achieved by dividing the global task into many smaller subtasks. Each subtask apart from executing its own task, services a part of the global task.RTX is the RTOS that powers more than one billion real-time systems across the globe, from small consumer products to commercial airliners. When the consequences for failure are expensive or worse, life threatening, RTX RTOS is the only choice. The concept of dynamic assignment of priorities to interrupts is used which reduces the time delay for a lower priority task under some circumstances becomes a higher priority task. Slicing of interrupt timings improves the performance. The highest priority task is serviced more number of times than the lesser time period. Voltage sensor and current sensor are interfaced to microcontroller, the capacitor bank is powered and the power factor produced from the location is gathered and depending on the particular criteria, The capacitor banks are switched ON to a controllable and variable amount of reactive power according to the requirements of load such that the power factor is improved and the uninterrupted working is done.

Last modified: 2013-06-08 21:11:24