GAS ENGINE CONTROL DEVICE, GAS ENGINE SYSTEM AND GAS ENGINE CONTROL METHOD

摘要

PROBLEM TO BE SOLVED: To provide a gas engine control device and a control method capable of performing an operation of a gas engine appropriately in response to a variation of calorific power of the fuel gas even if the calorific power of fuel gas is not adjusted.SOLUTION: There are provided a main chamber to which mixture gas of fuel gas and combustion air are supplied through an air feeding line 103 and a sub-chamber to which a part of the fuel gas is supplied by a sub-chamber gas supplying line 105. At least one parameter target value corresponding to a result of detection of calorific power by a calory sensor 91 is taken from a map where a target value corresponding to the calorific power of the fuel gas with respect to at least one parameter of pressure of the air feeding line, differential pressure between the air feeding line and the sub-chamber gas supplying line and ignition timing by an ignition device and there is provided a first instruction value generating part 55 for generating at least one of an ignition time instruction value, an opening instruction value of a sub-chamber differential pressure control valve 75 and an opening instruction value of an air feeding control valve 73.SELECTED DRAWING: Figure 1