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Regulation method for regulating an air conditioning system

  • US 9,664,403 B2
  • Filed: 08/04/2014
  • Issued: 05/30/2017
  • Est. Priority Date: 09/05/2013
  • Status: Active Grant
First Claim
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1. A regulation method for regulating an air conditioning system where said air conditioning system comprises:

  • a) a thermal cycle machine for generating an airflow at a specific temperature, and a pressure greater than atmospheric pressure, where said machine has a signal input interface suitable for specifying at least the machine fan speed Vm, or the machine set point temperature Tm, or both;

    allowing the regulation of thermal power and the adjustment of supplied air discharge,b) a distributor comprising;

    an inlet coupled to an outlet of the machine,a plurality n of outlets for conditioning a plurality of zones where each of the outlets i=1 . . . n in turn comprises a valve with an adjustable actuator that is adjusted according to a degree of aperture Ai,c) a set of n temperature sensors STzi, i=1 . . . n each of them intended for being located in each of the zones to be conditioned, for providing a temperature signal Tzifor the temperature measured in the i-th zone,d) a central processing unit at least comprising;

    n signal inputs for the reading of the temperature Tzi in any of the sensors STzi, i=1 . . . n,n value inputs for the reading of the set point temperature in each of the zones to be conditioned Tci, i=1 . . . n,n outputs for providing actuation signals, for the independent management of each of the n adjustable actuators of the valves, located at each of the outlets of the distributor,an output for providing an actuation signal for acting on the input interface of the thermal cycle machine for modifying its operating parameters;

    where said central processing unit is suitable for iteratively carrying out the regulation method according to the following steps;

    processing the temperature signals comprising the following steps;

    establishing the value of a coefficient Ct associated with the degree of aperture of the plurality of valves, initially taking the value 0, where the value equal to 0 represents that all the valves are closed and the value 1 represents that all the valves are open, for each zone i=1 . . . n, verifying the value of the error between the set point temperature and the measured temperature |Tci

    Tzi|, so that if said error is greater than a predetermined threshold value HT, then the degree of aperture of the i-th valve is modified by a signal acting in the adjustable actuator according to the formula Ai

    t(Tci

    Tzi), ƒ

    t being an increasing function limited between 0 and 1; and

    the accumulated value of the coefficient Ct increases with the value Ai/n,providing a Ct-dependent signal in the interface of the thermal cycle machine for specifying the machine air fan speed Vm, the machine set point temperature Tm;

    or both.

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