Fuzzy control method and device for chilled water of central air-conditioning and central air-conditioning system
A technology of fuzzy control and central air-conditioning, applied in heating and ventilation control systems, heating and ventilation safety systems, heating methods, etc., can solve problems such as biased judgments
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no. 2 example
[0166] Considering that the control system may be used for the first time, the fuzzy rule base and probability set may not be stored before, so before step 101, steps 100, 1001, 1002 are added. Specifically:
[0167] Step 100, judging whether the fuzzy control system is used for the first time? If yes, execute step 1001; if not, execute step 1002.
[0168] Step 1001, initialize a rule base and a probability set according to a predetermined method as an initial rule base and an initial probability set.
[0169] In this step, the predetermined method for initializing the rule base is:
[0170] Let an N x1 ×N x2 The (i, j)th element of the matrix R i,j is shown in the following formula:
[0171] R i , j = round ( N y × ( i N ...
no. 3 example
[0193] Step 100, judging whether the fuzzy control system is used for the first time? If yes, go to step 1001; if not, go to step 1002.
[0194] Step 1001: Initialize a rule base and a probability set according to a predetermined method as an initial rule base and an initial probability set.
[0195] Step 1002, calling out the rule base and probability set stored at the end of the last run from the database as the initial rule base and initial probability set.
[0196] Step 101. Calculate the initial cooling efficiency COP according to the control signal output from the initial fuzzy rule base and the initial probability set last .
[0197] Step 103: Randomly select a certain rule in the above-mentioned initial rule base, generate a modification direction corresponding to the probability of the rule, and modify the rule base.
[0198] Step 105, run according to the modified new rule base for a period of time t, and calculate the current cooling efficiency COP now .
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