Design of measurement system based on signal reconstruction for analysis and protection of distributed generations

Maintenance of power quality is an important issue in the interconnection and protection between distributed generations and a power system. With the development of measuring techniques and digital signal processors, multifunction monitoring devices are introduced. However, the installation of numerous terminal units usually would increase the cost for the wide-area measurement. In order to promote the deployment of distributed measurement, low-cost acquisition units with low operational burden are applied in this paper. By combining the proposed reconstruction technique for power signals, a simple remote power-quality measurement system is developed.