Air-conditioning control algorithm and control system

Air-conditioning control algorithm and control system

  • CN 101,600,916 B
  • Filed: 12/29/2006
  • Issued: 05/07/2014
  • Est. Priority Date: 12/29/2006
  • Status: Active Grant
First Claim
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1. a method of controlling air-conditioning system, the air-conditioning system of the type has system operator, building management system, heat exchanger coil, coolant fluid flows through from this heat exchanger coil, and air stream cycles through this heat exchanger coil, and the method comprises the following steps:

  • Obtain the coolant fluid supply temperature of the supply coolant fluid that enters described coil pipe;

    Obtain the coolant fluid that returns to coolant fluid that exits described coil pipe and return to temperature;

    More described coolant fluid supply temperature and described coolant fluid return to temperature, to obtain coolant fluid delta temperature;

    Set up coolant fluid delta temperature setpoint;

    More described coolant fluid delta temperature and described coolant fluid delta temperature setpoint, to obtain coolant fluid delta temperature error;

    Obtain air-conditioned zone air themperature;

    Obtain air-conditioned zone desired temperature;

    More described air-conditioned zone air themperature and described air-conditioned zone desired temperature, to obtain the error amount of region setting value;

    Provide at least one valve, for controlling the flow of the coolant fluid that flows through described coil pipe;

    AndRespond the error amount of described coolant fluid delta temperature error and described region setting value and activate described valve;

    The method is further comprising the steps of;

    Determine supply air themperature;

    Determine and return to air themperature;

    More described supply air themperature with described in return to air themperature, to obtain air themperature error amount;

    Set up unit failure setting value;

    More described air themperature error amount and described unit failure setting value;

    AndAt least one in warning system user and building management system has unit failure responsively.

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