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EP0098047A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Electrical control systems

Assignee: THAMESMEAD ENGINEERING Ltd
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Filing: 1983-05-25
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Granted: —
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Expires: 2003-05-25
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Abstract

Abstract An electrical system has a prime mover (16) driving an electrical generator (10) which supplies a consumer load (B) and an auxiliary load (14). A control system (11) operates control (15) for the prime mover, control (13) for the auxiliary load and/or control ) for the consumer load in response to a signal from the generator (10) or some other source, so that the supply is stabilised so far as possible to a minimum. Normally no energy is dissipated in the auxiliary load.

Inventors

  • 👤 Richard Dudley Payne
  • 👤 Eric Ernest Simpson

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-02 12:56
CPC Classifications
F; F03; F03B; F03B15/00; F03B15/02; F03B15/04; F03B15/06; H; H02; H02P; H02P9/00; H02P9/04; H02P2101/00; H02P2101/10; Y; Y02; Y02E; Y02E10/00; Y02E10/20

Claims Analysis

Total Claims: 12
Claim 1
Independent Claim 95 words
An electrical system comprising a prime mover driving an electrical generator connected to a consumer load and an auxiliary load, and a control system including a sensor responsive to one or more parameters of the generator system, arranged so that in response to said sensor or an external signal, said loads are controlled to receive varying proportions of the output of the generator, and in addition the power output of the prime mover to the generator is controlled, wherein control is effected so that normally the auxiliary load receives no or a minimum of power.
Claim 2
Dependent Claim 95 words
An electrical system comprising a prime mover driving an electrical generator connected to a consumer load and an auxiliary load, and a control system including a sensor responsive to one or more parameters of the generator system, arranged so that in response to said sensor or an external signal, said loads are controlled to receive varying proportions of the output of the generator, and in addition the power output of the prime mover to the generator is controlled, wherein control is effected so that normally the auxiliary load receives no or a minimum of power.
Claim 3
Dependent Claim 31 words
An electrical system as claimed in claim 1, wherein additionally said control is effected so that the power output of the generator tends to equal the power consumed by the load.
Claim 4
Dependent Claim 53 words
An electrical system as claimed in claim 1 or 2, wherein an additional control is provided in series with the consumer load whereby the power consumed can be controlled so as to maintain a value of said one or more parameters for a period while the power output of the generator is adjusted.
Claim 5
Dependent Claim 47 words
An electrical system as claimed in claim 1 or 2, wherein additional consumer load can be supplied instantaneously by applying an external control signal in advance to increase generator output and to temporarily absorb excess power in said auxiliary load until required for the additional consumer load.
Claim 6
Dependent Claim 40 words
An electrical system as claimed in claim 3, wherein said consumer load is in two parts in parallel, and said additional control can be applied to one part in order to protect the other part from variations in supply characteristics.
Claim 7
Dependent Claim 20 words
An electrical system as claimed in any prceding claim wherein the parameter sensed is the frequency of the generator output.
Claim 8
Dependent Claim 32 words
An electrical system as claimed in any preceding claim wherein said prime mover is a water turbine and one of the parameters sensed is the water level of the turbine water supply.
Claim 9
Dependent Claim 17 words
An electrical system as claimed in claim 6 or 7, wherein additional voltage or current are sensed.
Claim 10
Dependent Claim 18 words
An electrical system as claimed in any preceding claim wherein said external signal is determined by a clock.
Claim 11
Independent Claim 77 words
A method of operating an electrical system including a prime mover driving an electrical generator connected to a consumer load and an auxiliary load, comprising the steps of continuously sensing one or more parameters of the generator system, and controlling the power or the proportion of the power recived by the respective loads, and also the power output of the prime mover so that in normal operation the auxiliuary load receives no or a minimum of power.
Claim 12
Independent Claim 77 words
A method of operating an electrical system including a prime mover driving an electrical generator connected to a consumer load and an auxiliary load, comprising the steps of continuously sensing one or more parameters of the generator system, and controlling the power or the proportion of the power recived by the respective loads, and also the power output of the prime mover so that in normal operation the auxiliuary load receives no or a minimum of power.

References Cited (Backward Citations)

US1766548A Cited
US2015556A Cited
CH286240A Cited
FR1589454A Cited
GB2006998A Cited
EP0066490A1 Cited

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