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Stability Analysis of Free Piston Stirling Engine Power Generation System
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English
Abstract
This paper presents a stability analysis of the free-piston Stirling engine and linear alternator power generation system. Since such a system operates under sustained mechanical oscillations, stability of the system is important for proper operation, and as a criterion in selecting the tuning capacitor. The stability criterion of the system is that the rate of change in power dissipation and electric power output is always faster than the rate of the power generated by the engine. The dynamic equations and model of the system are developed in this paper. Frequency domain analysis and Bode plot techniques are utilized in the study. The stable operating frequency region corresponding to different levels of power output are then determined.
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Citation
Fu, Z., Nasar, S., and Rosswurm, M., "Stability Analysis of Free Piston Stirling Engine Power Generation System," SAE Technical Paper 929025, 1992, https://doi.org/10.4271/929025.Also In
References
- Nasar, S.A. “A study of permanent magnet Linear Alternators” Research Report to NASA Lewis Research Center March 1991
- Fu, Z.X. Nasar, S.A. Rosswurm, M. “Tradeoff Between Magnet and Tuning Capacitor in a Free-piston Stirling Engine Power Generation System,” 27th Intersociety Energy Conversion Engineering Conference San Diego, CA August 3-7 1992
- Redlich, R.W. Berchowitz, D.W. “Linear Dynamics of Free-Piston Stirling Engine,” Proc. I Mech E. March 1985 203 213