Study of controller for reactive power continuous compensation based on ARM embedded microprocessor

In this paper, a novel continuous reactive power compensator based on soft switching was discussed. Directed at the traditional electric power parameters measuring system didn’t have the managing ability of the modern operation system, a technology of AC synchronization sampling was given which was based on embedded microprocessor S3C44B0X with 32-bit ARM7TDMI core and μC/OS-□ real-time operating system kernel. The technology divided the sampling process into 2-parts, frequency dynamic tracking and same-internal synchronization sampling .The multi-tasks, which task process the different priorities, used to actualize sampling the signal and treating with the data. All tasks were scheduled by the preemptiveμC/OS-□ kernel. The technology has decreased the conflict between the precision and real-time property. The ADS7864, a electric power application-specific A/D chip, has predigested the interface circuit. The hardware implementation has been outlined.