| 摘要 |
<p>A gas engine control device which can set to an appropriate value the concentration of NOx discharged from a gas engine. The gas engine control device is provided with: an engine speed control section (111b) which controls the extent of opening of the throttle valve (23) on the basis of the difference between the engine speed (Ne) and an engine speed command value (NeO); a mixture gas flow rate control section (111c) which determines a mixture gas flow rate command value (QmixO) from a load (Ld) and the engine speed command value (NeO), calculates an actual mixture gas flow rate (QmixR) corrected with respect to viscosity, the actual mixture gas flow rate (QmixR) being calculated on the basis of the mixture gas temperature (Tmix), the mixture gas pressure (Pmix), and the engine speed (Ne), and controls a fuel gas control valve (42) on the basis of the difference between the mixture gas flow rate command value (QmixO) and the actual mixture gas flow rate (QmixR) corrected with respect to viscosity; and an electrical-discharge timing control section (111d) which determines a discharge gas temperature command value (TgO) from the mixture gas flow rate command value (QmixO) and controls, on the basis of the difference between the discharge gas temperature command value (TgO) and the discharge gas temperature (Tg), the timing at which an ignition plug (16) performs electrical discharge.</p> |
