Process for combustion of a fuel with an oxygen-rich oxidant

A process for combustion of a fuel with an oxidant whose oxygen level is more than 25 mol %, in a combustion chamber, comprising the steps of:

• measuring at least one principal variable representing the combustion in the said combustion chamber;
• determining a regulating control instruction as a function of the result of the step of measuring the at least one principal variable, the regulating control instruction for regulating the flowrates of fuel and oxidant to be injected into the combustion chamber;
• burning the fuel with the oxidant in accordance with the regulating control instruction in the chamber;
• measuring at least one secondary variable associated with an operational constraint of the combustion chamber or with a perturbation in the operation of the combustion chamber;
• wherein said step of determining a regulating control instruction further comprises determining a control instruction as a function of the result of the step of measuring the at least one secondary variable;
• wherein said step of determining a regulating control instruction is performed by a fuzzy-logic controller employing the steps comprising:
• determining the degree of membership of each principal or secondary variable in at least one state of a fuzzy variable;
• and
• applying at least one preestablished rule between at least one state of a first fuzzy variable and a state of a second fuzzy variable in order to determine the regulating control instruction.