| US 7,602,627 B2 | ||
| Electrical power source, operational method of the same, inverter and operational method of the same | ||
| Masaaki Ohshima, Tokyo (Japan); Shuuichi Ushiki, Tokyo (Japan); and Jirou Fukui, Tokyo (Japan) | ||
| Assigned to Origin Electric Company, Limited., Tokyo (Japan) | ||
| Filed on Apr. 27, 2006, as Appl. No. 11/414,662. | ||
| Claims priority of application No. P2005-132716 (JP), filed on Apr. 28, 2005; application No. P2005-132717 (JP), filed on Apr. 28, 2005; and application No. P2005-132718 (JP), filed on Apr. 28, 2005. | ||
| Prior Publication US 2006/0245221 A1, Nov. 02, 2006 | ||
| Int. Cl. H02M 7/493 (2007.01); H02M 7/53 (2006.01) | ||
| U.S. Cl. 363—97 [363/71; 363/140] | 11 Claims |
| 1. An operation method of an inverter wherein a value of an equivalent output impedance is changed by only control parameters,
comprising the steps of:
setting the value of the equivalent output impedance of the inverter prior to a starting of feeding of power to a first set
value that limits an output current to below a desired value; and
adjusting the control parameter after starting of feeding of power to change the equivalent output impedance to a second set
value that is smaller than the first set value, wherein
said control parameters are changed by adjusting at least one of an output voltage feedback gain and an output current feed
forward gain.
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