진동수주형 파력발전장치의 챔버 및 터빈 내 유동해석을 위한 실시간 물리적 모델 구현에 관한 연구

Abstract

This study was carried out to implement real-time physical model for the flow analysis in the oscillating chamber and the pneumatic turbine of the OWC(Oscillating Water Column)-type wave power generator. This device is a system that extracts energy by rotating the turbine by repeating the vertical motion of a water column in an air chamber by an incident wave. The turbine is operated by the pressure difference between the air chamber and the outside atmosphere. A digital twin model is required for efficient operation and maintenance of wave generator. It is a technology that can control the real model by predicting the phenomenon in real time after N seconds based on the physical model and the sensor data model. In this study, a real-time flow analysis physical model was implemented from the energy conservation equation to predict the air pressure in the chamber. In order to build a physical model, three-dimensional flow analysis data in the turbine were considered. To validate this analytical model, the air pressure in the chamber was compared to the experimental data and showed good quantitative agreement over the entire time.