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특허 상세정보

Turbogenerator power control system

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) E21B-043/00    F04B-049/00    F01D-015/10   
미국특허분류(USC) 166/053 ; 417/012 ; 290/052
출원번호 US-0316896 (1999-05-22)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Irell & Manella, LLP
인용정보 피인용 횟수 : 90  인용 특허 : 9
초록

A power control system for a turbogenerator which provides electrical power to one or more pump-jack oil wells. When the induction motor of a pump-jack oil well is powered by three-phase utility power, the speed of the pump-jack shaft varies only slightly over the pumping cycle but the utility power requirements can vary by four times the average pumping power. This power variation makes it impractical to power a pump-jack oil well with a stand-alone turbogenerator controlled by a conventional power control system. This power control system comprises a t...

대표
청구항

[ What we claim is:] [1.]1. A system, comprising:a turbogenerator;a cyclic motion machine driven by an electric motor;a load inverter connected to said turbogenerator to deliver power to said motor; anda controller controlling said turbogenerator and said inverter to vary the frequency of said inverter in accordance with a variable frequency time profile for said electric motor based on historical machine cycle position and corresponding inverter frequency data to provide a substantially constant power level to said electric motor.

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