Research on Model of Free Piston Linear Generator based on Location Domain and Real-Time Motion Control Strategy

Free Piston Linear Generator (FPLG) is an ideal power resource in Hybrid Electric Vehicle (HEV) for its potential advantages of low friction loss, variable compression ratio, being suitable for various fuels, high thermal efficiency, etc. No FPLG has been successfully applied to an actual vehicle as lack of reliable control. The first part of this paper consists of introduction to FPLG and its research status. Structure and working principle of FPLG are analyzed in the second part. Then the thermodynamic process is analyzed and mathematical models of all kinds of FPLG using real-time motion control strategy based on location domain are established. After these, verifying work of the six different models established before and the realtime control strategy is carried out. Results show that the mathematical models of FPLG based on location domain work well and the control strategy effects with proper linear generator.