Nozzle, combustor and combustion method for hydrogen-doped combustion of gas turbine

The invention discloses a hydrogen-doped combustion nozzle of a gas turbine, a combustor and a combustion method, and relates to the field of hydrogen gas turbines. The nozzle comprises a high-pressure air cavity, a premixing chamber is arranged in the high-pressure air cavity, and an air inlet for high-pressure air to enter is formed in the high-pressure air cavity; a flow dividing plate is arranged at one end of the premixing chamber, a plurality of flow dividing spray holes used for hydrogen fuel to enter the premixing chamber are formed in the flow dividing plate, a plurality of air flow channels used for high-pressure air to enter the premixing chamber are formed in the side wall of the premixing chamber, and the hydrogen fuel and the air are mixed in the premixing chamber to form lean premixed fuel gas. A lean premixed gas outlet is formed in the other end of the premixing chamber, a mixing hole used for adjusting the temperature is formed in the high-pressure air cavity, the lean premixed gas outlet is