신재생 하이브리드 발전시스템의 범용 제어시스템 설계에 관한 연구

Abstract

Hybrid generation system is the integration of two or more different types of generation systems. Recently hybrid generation system of new and renewable energy is popular because it is much more effective than the individual generation system that uses a single renewable energy source. Furthermore, it is more useful to protect the environmental pollution than any other generation system that uses fossil fuels. Solar energy has no air pollution and noise, and the energy resources are unlimited. Wind energy can be obtained wherever the wind blows, and maintenance cost is less than that of the other renewable energy. Tidal energy, which usually has high energy density than the other renewable energy, is less influenced by the weather condition. Hybrid generation technology for stand-alone power generation is still at its initial stages as an energy source because a lot of work is required in the selection of optimum sizing of each energy resource and the control and monitoring of the system. The control and monitoring system should be designed differently according to the kinds of energy resources that constitute the hybrid power generation system. This prevents us from wide spread of various hybrid power generation system. The purpose of this study is to develop a general purpose controller and monitoring system for various combination of hybrid generation system. The control and monitoring system that can be applied for any combination of wind, PV and tidal energy resources was developed, and the field tests were performed for wind-PV-tide hybrid power generation system. The results have shown that the developed control system can be usefully applied, and hence will contribute to developing various kinds of renewable hybrid generation systems.