A digital speed control system and method for a gas turbine

Abstract

The invention discloses a gas turbine digital type rotating speed control system and method. The system comprises a booster pump, the booster pump is connected with a gear pump through a pipeline, thegear pump is connected with an output shaft of a motor, the lower end of the gear pump is provided with a fuel metering device, the fuel metering device is connected with a stepping motor, an oil outlet of the fuel metering device is connected with an oil inlet of a fuel distributor through two pipelines, two oil outlets of the fuel oil distributor are connected with a first nozzle and a second nozzle, an outlet of the first nozzle and an outlet of the second nozzle are connected with a gas turbine, the gas turbine is connected with a motor, a power turbine sensor is arranged on the gas turbine, the power turbine sensor is connected with an electronic control cabinet through a data conversion device, through closed-loop control, the rotating speed of the gas turbine can be accurately adjusted in time, and safety and reliability of the fuel oil control system can be improved; the control precision of the gas turbine is improved, the performance potential of the gas turbine can be fullyexerted, and the use efficiency of the gas turbine can be improved.

Description

technical field

[0001] The invention belongs to the technical field of control systems, and in particular relates to a gas turbine digital speed control system and method. Background technique

[0002] The advantages of the fuel hydraulic control system are simple and reliable. In fact, the fuel hydraulic control system only provides open-loop fuel supply to the gas generator according to the position of the throttle lever, limits the fuel supply, and ensures the safe operation of the gas generator. The principle is simple and the work is stable. Coupled with a careful and detailed monitoring and protection system, it is very suitable for use in the gas turbine working environment where the workload does not change drastically and the transition process is not high. The disadvantage of this system is that the control law is too simple, and the open-loop fuel supply according to the throttle lever position cannot guarantee the stable state of the gas generator. With the chan...

Examples

Embodiment Construction

[0029] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative import...

technical field

[0001] The invention belongs to the technical field of control systems, and in particular relates to a gas turbine digital speed control system and method. Background technique

[0002] The advantages of the fuel hydraulic control system are simple and reliable. In fact, the fuel hydraulic control system only provides open-loop fuel supply to the gas generator according to the position of the throttle lever, limits the fuel supply, and ensures the safe operation of the gas generator. The principle is simple and the work is stable. Coupled with a careful and detailed monitoring and protection system, it is very suitable for use in the gas turbine working environment where the workload does not change drastically and the transition process is not high. The disadvantage of this system is that the control law is too simple, and the open-loop fuel supply according to the throttle lever position cannot guarantee the stable state of the gas generator. With the chan...

Examples

Embodiment Construction

[0029] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative import...

Images