Direct turbogenerator
A transformerless direct turbogenerator for generating electricity is provided. Since the introduction alternator comprises multiple parallel windings, it allows elimination of the need for a transformer.
1 . A turbogenerator comprising:
a) a turbine prime mover,
b) an induction alternator;
c) an excitation system for said induction alternator comprising a plurality of static capacitors and switches;
d) a cycloconverter connected to said induction alternator, and
e) a control circuit to control said excitation system and said cycloconverter
2 . The turbogenerator of claim 1 wherein said induction alternator comprises a plurality of parallel windings thereby allowing elimination of a transformer.
3 . The turbogenerator of claim 2 wherein said induction alternator comprises three parallel windings.
4 . The turbogenerator of claim 1 further comprising an independent alternating current power source in circuit with said cycloconverter to permit starting of the prime mover using the induction alternator.
5 . The turbogenerator of claim 1 wherein said cycloconverter is naturally commutated.
6 . The turbogenerator of claim 5 wherein said cycloconverter comprises a plurality of switches.
7 . The turbogenerator of claim 6 wherein said cycloconverter comprises a plurality of silicon controlled rectifiers.
8 . The turbogenerator of claim 1 wherein said controller is a programmable logic controller.
9 . A transformerless turbogenerator comprising:
a) a turbine prime mover;
b) an induction alternator comprising a plurality of parallel windings;
c) an excitation system for said induction alternator comprising a plurality of static capacitors and switches;
d) a naturally commutated cycloconverter connected to said induction alternator, and
e) a control circuit to control said excitation system and said cycloconverter
10 . The turbogenerator of claim 9 further comprising an independent alternating current power source in circuit with said cycloconverter to permit starting of the prime mover using the induction alternator.
11 . The turbogenerator of claim 9 wherein said induction alternator comprises three parallel windings.
12 . The turbogenerator of claim 9 wherein said cycloconverter comprises a plurality of switches.
13 . The turbogenerator of claim 12 wherein said cycloconverter comprises a plurality of silicon controlled rectifiers.
14 . The turbogenerator of claim 9 wherein said controller is a programmable logic controller.