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Control system for limiting the electrical consumption of a distribution network

  • US 4,100,428 A
  • Filed: 06/15/1976
  • Issued: 07/11/1978
  • Est. Priority Date: 02/06/1976
  • Status: Expired due to Term
First Claim
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1. A control system for limiting the electrical demand of a distribution network to a maximum predetermined value while regulating the temperature of one or more thermal loads by connecting and disconnecting a number of heating or cooling elements, comprising:

  • means for measuring the instantaneous demand of said network;

    means for comparing the measured demand of said network to said predetermined maximum value;

    means for measuring the instantaneous temperature of each said thermal load;

    means for determining, for each said thermal load, the difference between the measured temperature and a precetermined temperature for said load;

    means for establishing a proportional relation between said difference and the number of elements in a connected state;

    priority decision means for determining action to be taken on the connection or disconnection of a number of said elements in response to information received from said comparing means and said relation establishing means; and

    means for connecting or disconnecting said number of said elements in response to a decision derived from said priority decision means.

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