| Title |
A Study on the Signal Detection Method of Short Circuit Accident Applying Rosen Type Piezoelectric Transformer |
| Authors |
안종수(Jong-Su An) ; 김태규(Tae-Kue Kim) ; 곽군평(Gun-pyoung Kwak) |
| DOI |
https://doi.org/10.5370/KIEE.2022.71.7.979 |
| Keywords |
Piezoelectric transformer; Short circuit protection; Rosen type; Short accident; Resonance frequency |
| Abstract |
In short circuit protection applications, a protection system with a current limiting circuit and a relay has been developed recently.
In this system, the circuit can be configured simply by changing the relay contact. However, this system has disadvantage limited load power by parallel resistor for relay operation. In this paper, we propose a short circuit accident prevention system using a piezoelectric transformer to solve the problem of system load power limitation. In the event of a short circuit, we analyze the possibility of harmonic rejection and output voltage detection through a piezoelectric transformer. Through this, we studied the applicability of the short circuit accident preventi on system of the piezoelectric transformer. |