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Distributed control system

  • US 5,553,003 A
  • Filed: 03/11/1993
  • Issued: 09/03/1996
  • Est. Priority Date: 03/11/1992
  • Status: Expired due to Fees
First Claim
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1. A method for controlling a power generating system including a plurality of power generating equipments;

  • a supervising subsystem; and

    communication means for establishing communication between said power generating equipment and said supervising subsystem, all of said plurality of power generating equipment having a condition detecting subsystem for detecting local knowledge related to self performance and self condition of respective ones of said plurality of power generating equipment, and also said supervising subsystem having a supervising goal as said power generating system and large area knowledge required to supervise said power generating system, said method for controlling a power generating system comprising the steps of;

    (a) dividing the supervising goal into a plurality of subgoals in said supervising subsystem and transmitting one of said subgoals to all of said plurality of power generating equipment via said communication means;

    (b) calculating subgoal achievement performance of the respective subsystem with respect to said one of said subgoals transmitted to all of said plurality of power generating equipment, based upon the self local knowledge regarding the self performance and self condition of respective ones of said plurality of power generating equipment in each of said plurality of subsystems which have received said one of said subgoals transmitted to all of said plurality of power generating equipment, the calculated subgoal achievement performance being transmitted to said supervising subsystem via said communication means from all of said plurality of power generating equipment;

    (c) comparing and evaluating said subgoal achievement performance respectively transmitted from all of said plurality of power generating equipment in said supervising subsystem in response to said one of said subgoals transmitted to all of said plurality of power generating equipment;

    (d) redividing said supervising goal into further subgoals in said supervising subsystem if said supervision subsystem judges that the supervising goal should be redivided as a result of the comparison and evaluation in step (c), and thereafter reexecuting said steps (a) to (c) with respect to one of the redivided further subgoals; and

    (e) selecting, in said supervising subsystem a subsystem which has transmitted most preferable subgoal achievement performance in response to said one of said subgoals transmitted to all of said plurality of power generating equipment and sending a subgoal execution instruction to the selected subsystem if said supervising subsystem judges that the supervising subsystem should not be redivided as a result of the comparison and evaluation in step (c).

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