| Real-time monitoring systems, in the ever growing world of power systems, are a necessity. This thesis describes the design and development of a real-time voltage and frequency monitoring system using LabVIEW as a programming tool. The monitoring system is developed according to the specifications provided, by designing an optimum algorithm, suitable for high speed acquisition and also high speed of operation. It uses DAQ card for signal acquisition and Personal Computer (PC) as control and display console. The monitoring system provides a means for the system to be observed and accessed remotely. As it monitors the voltage and frequency changes, it makes suitable event recordings, report generations and if needed, recommends load shedding on account of any abnormality observed in the system. The monitoring system algorithm and the flow of the software are explained along with the hardware used.; A frequency detection system that could react fast is a great tool for a co-generation plant. This type of a fast reacting system, which could quickly detect small changes in frequency with accuracy, could help a co-generation plant to participate in ERCOT's (Electric Reliability Commission of Texas) Load acting as a Resource (LaaR) program. In the LaaR program if a company can detect under-frequency situation and shed load off the system, it can get paid for not taking the power from the grid in such situations. Since, a plant that is quick to react would be higher in ERCOT's choice for load shedding, such a system would reap in profits. The monitoring system described in this thesis was developed for an industrial power system as a tool for this very purpose. (Abstract shortened by UMI.)... |
