07038329 is referenced by 11 patents and cites 14 patents.

A prime mover (28) in a heat recovery system drives an induction generator (8) which feeds power to a utility grid (9) through a breaker (10) but also powers a load including auxiliary induction motors (11, 12). To provide acceptable waveform and power factor, the auxiliary equipment is driven through IGBT switched bridge converters (13) by DC voltage (15) generated by an IGBT switched bridge converter (13a), instead of three-phase diode rectifiers (16). The switched bridge converter controller (14a) is responsive to a system process controller (23a) which causes the switched bridge controller (13a) to be driven in response to the voltage (26) and current (27) on the generator bus (17). This eliminates the need for harmonic filters (18) and power factor capacitors (20) while improving the quality of the power generated. The controller (23a) trips the breaker if the voltage, frequency or power factor is out of limits.

Title
Quality power from induction generator feeding variable speed motors
Application Number
10/982628
Publication Number
7038329 (B1)
Application Date
November 4, 2004
Publication Date
May 2, 2006
Inventor
Rishi Grover
Vernon
CT, US
Steven J Fredette
South Windsor
CT, US
Agent
M P Williams
Assignee
UTC Power
CT, US
IPC
F02D 29/06
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