[특허]Control system and circuits for distributed electrical-power generating stations

Control system and circuits for distributed electrical-power generating stations 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H02P-009/00
출원번호	US-0615688 (1996-03-13)
발명자 / 주소	Thomson William R.
출원인 / 주소	Alaska Power Systems Inc.
대리인 / 주소	Austin
인용정보	피인용 횟수 : 81 인용 특허 : 0

초록 ▼

A system (30) for providing electrical-power to remote communities (34) widely distributed over an extended geographical area (38) includes a generating station (32) located proximate each of the communities, each generating station supplying only that community to which it is proximate. The generating stations are in electronic communication with a central computer (40). Each generating station includes a plurality of generators (54-56). Each of the generators is controlled by a microprocessor based controller (64). Each controller is arranged to operate the generating station cooperatively with the other controllers associated with other generators in the station, and to assume a supervisory role in doing so by a mutual arbitration procedure among the controllers. Each controller is also arranged to monitor important generator operating parameters and to communicate these parameters to the central computer. Any controller may be reprogrammed by instructions communicated from the central computer, and functions of any controller may be overridden by instructions communicated from the central computer. The controllers include novel signal processing circuits (90 and 85) and logic for improved voltage and frequency regulation. The controllers also include novel circuits (92) and logic for monitoring generator fuel consumption and calculating generator fuel-efficiency therefrom.

대표청구항 ▼

[ What is claimed is:] [1.] In an engine driven electrical power generator arrangement, a method for determining fuel efficiency of electrical energy generation, comprising the steps of:(a) from a magnetic rotary vane flowmeter providing first and second current pulse signals representing respectively fuel flow to and fuel flow from the engine, said current pulse signals having a frequency representative of volume fuel flow, and having a magnitude representative of fuel temperature;(b) converting said first and second current pulse signals to first and second voltage pulse signals;(c) determining from said first and second voltage pulse signals respectively first and second values of fuel volume flow and first and second values of fuel temperature;(d) from said first and second values of fuel volume flow, said first and second values of fuel temperature and from a predetermined standard temperature, standardizing said first and second fuel volume flows to a density corresponding to said standard temperature; and(e) subtracting said standardized second fuel volume flow from said first standardized fuel volume flow thereby determining a fuel consumption value;(f) receiving a signal from the generator that the generator has generated a predetermined amount of electrical energy; and(g) calculating the fuel efficiency of electrical energy generation from the fuel consumption value and the predetermined amount of electrical energy.

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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연합인증

Control system and circuits for distributed electrical-power generating stations 원문보기

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Control system and circuits for distributed electrical-power generating stations 원문보기

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