Technique for increasing power capability of a DC-to-AC...

Details Technique for increasing power capability of a DC-to-AC... Technique for increasing power capability of a DC-to-AC...

2007-05-15

2007-05-15

Han, Jessica (Department: 2838)

Electric power conversion systems

Current conversion

Using semiconductor-type converter

C363S040000

Reexamination Certificate

active

11086689

ABSTRACT:
A power system that increases the power capability of a DC/AC converter includes a processor coupled to the DC/AC converter and a memory subsystem coupled to the processor. The memory subsystem stores code that when executed by the processor instructs the processor to perform a number of steps. The processor determines when an electrical load that is coupled to the DC/AC converter causes a link voltage of the DC/AC converter to fall below a first predetermined link voltage level. The processor then controls a DC/AC output inverter of the DC/AC converter to cause the DC/AC converter to provide a non-sinusoidal output waveform. The processor also controls the DC/AC output inverter to cause the DC/AC converter to provide a sinusoidal output waveform, when the link voltage exceeds the first predetermined link voltage level or a second predetermined link voltage level.

REFERENCES:
patent: 5631819 (1997-05-01), Masaki et al.
patent: 5680302 (1997-10-01), Iwata et al.
patent: 2001/0017781 (2001-08-01), Hideaki
patent: 2006/0171182 (2006-08-01), Siri et al.

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