A New Concept of Small-Compressed Air Energy Storage System Integrated with Induction Generator

This paper presents a hybrid technology for a renewable energy power generation, which is developed as a small-scale power plant. The proposed system is a new concept of small-compressed air energy storage (S-CAES) integrated with induction generator. The system consists of 3 main components: air compressor, energy storage system and power generation. The air compressor uses a general reciprocating engine that produces a compressed air. It is stored in pressurized vessels. The energy storage system uses S-CAES, which is developed as a small volume and installed above ground to avoid the site limitation as the conventional CAES does. Therefore, it can be located in any location. The S-CAES system is operated in low pressure that not more than 10 bar, so, it easy to available component in country and inexpensive. The induction generator (IG) is used in power generation, which does not have combustion units as the conventional CAES that used gas turbine. Thus, the system does not burn fuel and exhaust pollution. This paper expresses the modeling and simulation to obtain the characteristic of a new concept of S-CAES power plant, which can be helpful in system designing of renewable energy conversion.