Electrical control systems
AssigneeThamesmead Engineering Limited
InventorsRichard D. Payne, Eric E. Simpson
Life of this patent
Estimating the term…
Abstract
A hydroelectric power system has a reservoir (prime mover) (17) 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 (12) for the consumer load in response to a signal from the generator (10) or some other source, so that the supply is stabilized so far as possible to a minimum. Normally no energy is dissipated in the auxiliary load, except during a control sequence.
Claims12
A control system for an electrical power generating system comprising:
- a prime mover, an electrical generator driven thereby, consumer load supplied from the generator, an auxiliary control load, and a control system;
- said control system comprising a controller, a sensor for one or more parameters of the generating system and producing a signal responsive thereto, first control means for said prime mover whereby the output of the generator is influenced, second control means associated with said auxiliary control load whereby the proportions of the power received by the consumer load and the auxiliary control load are controlled, and connections from the controller to the first and second control means;
- the controller, in response to said signal from the sensor, effecting control of said proportions by alteration of the second control means;
- and also variation of the power output of the prime mover to the generator, and thus the power output of the generator, in a sense to allow steady state operation in which the auxiliary control load receives no or a minimum of power.
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.
A control system for an electric power generator system comprising:
- a prime mover, an electrical generator driven thereby, a load continuously supplied from the generator during each of start up, steady state and overspeed conditions, and a control system;
- said control system comprising a controller, a sensor for one or more parameters of the generator system and producing a signal responsive thereto, first control means for said prime mover whereby the output of the generator is influenced while said load is being supplied by said generator, second control means for controlling the power or the proportion of the power received by the load, and connections from the controller to the first and second control means;
- the controller, in response to said signal from the sensor, effecting control of the power or the proportion of the power received by the load by alteration of the second control means;
- and also variation of the power output of the primer mover to the generator, and thus of the power output of the generator.
A control system for an electric power generator system comprising:
- a prime mover, an electrical generator driven thereby, a consumer load and an auxiliary electrical load continuously supplied from the generator and a control system;
- said control system comprising a controller, a sensor for one or more parameters of the generator system and producing a signal responsive thereto, first control means for said prime mover whereby the output of the generator is influenced, second control means for controlling the power or the proportion of the power received by the loads, and connections from the controller to the first and second control means;
- the controller, in response to said signal from the sensor, effecting control of the power or the proportion of the power received by the loads by alteration of the second control means;
- and also variation of the power output of the prime mover to the generator, and thus of the power output of the generator by alteration of the first control means.
Dependencies are inferred from the claim text.