Realization of Enhanced Phase Locked Loop using Raspberry Pi and LabVIEW

Real-time data is gaining more importance in engineering. With archived data and the real-time data, utilities are making systems more robust by developing new methods for controlling and monitoring. Frequency information of the system is one of the key factors for better controlling and monitoring purpose. Acquiring real-time frequency information at a low cost is of timely important. This paper presents Raspberry Pi based data acquisition for frequency measurement through enhanced Phase-Locked-Loop (PLL). This paper discusses elements: (i) The complete procedure for acquiring the real-time data using Raspberry Pi, Multi-chip package (MCP) 3008 and LabVIEW. (ii) Modeling of Enhanced PLL with the data acquisition system for processing the real-time data to extract the frequency and amplitude information.