Control scheme for power modulation of a free piston Stirling en

Details Control scheme for power modulation of a free piston Stirling en Control scheme for power modulation of a free piston Stirling en

1988-12-28

1989-10-17

Ostrager, Allen M.

Power plants

Utilizing natural heat

Solar

60518, 60520, 290 1R, F02G 104

Patent

active

048738263

ABSTRACT:
The present invention relates to a control scheme for power modulation of a free-piston Stirling engine-linear alternator power generator system. The present invention includes connecting an autotransformer in series with a tuning capacitance between a linear alternator and a utility grid to maintain a constant displacement to piston stroke ratio and their relative phase angle over a wide range of operating conditions.

REFERENCES:
patent: 4433279 (1984-02-01), Bhate
patent: 4567726 (1986-02-01), Vitale et al.
patent: 4642547 (1987-02-01), Redlich
patent: 4642988 (1987-02-01), Benson
patent: 4811563 (1989-03-01), Furuishi

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