Islanding detection for a single phase bidirectional converter in telecommunication power systems

Telecommunications is a rapidly growing field in global technology and it has a significant social, cultural, and economic impact on modern society. As such, ensuring reliability of these systems should be highly prioritized and involve sophisticated standards. Due to the highly sensitive nature of Telecom loads, it is vital that failure of the utility power be detected quickly. In this paper, Slip Mode Frequency Shift Islanding Detection Method is proposed for islanding detection of a single phase bidirectional converter in Telecommunication power systems. The proposed method uses an orthogonal system generation based PLL and an adaptive all pass filter for control of the converter. Simulation results verify the accuracy of the proposed method in detecting islanding in the required time frame.