|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||322/022 ; 322/038 ; 307/084|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 22 인용 특허 : 19|
An auxiliary power unit ("APU") system and methods used to bring such system on-line and off-line are disclosed. An APU generator forming part of an APU system, is brought "on-line" smoothly in order to replace a primary generator operating at a steady-state rotational speed that is interconnected with a load. A controller forming part of the APU system controls rotational speed of the APU and thereby the generator so that it approaches a rotational speed beneath the steady-state rotational speed of the primary generator. The controller then connects the...
[ What is claimed is:] [1.]1. A method of operating an auxiliary power unit ("APU") generator forming part of an APU system, to replace a primary generator operating at a steady-state rotational speed interconnected with a load, said method comprising in sequence, the steps of:a. adjusting rotational speed of said APU generator, until said APU generator speed is beneath said steady-state rotational speed;b. interconnecting said APU generator to said load and said primary generator, thereby causing said APU generator to motor at said steady-state rotation...