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Micro gas turbine starting method and system

A technology of micro gas turbine and starter motor, which is applied to gas turbine installations, machines/engines, mechanical equipment, etc., can solve the problems of frequent startup of gas turbine systems, affect the reliability of micro gas turbines, and reduce service life, etc., so as to avoid frequent startup, Ease of expansion and implementation, improved success rates

Pending Publication Date: 2020-07-24
刘慕华
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Unsuccessful ignition leads to frequent start-up of the gas turbine system, which affects the reliability of the micro gas turbine and reduces its service life

Method used

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  • Micro gas turbine starting method and system
  • Micro gas turbine starting method and system

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Embodiment Construction

[0045] In order to better understand the technical solutions of the present invention, the present invention will be further described below in conjunction with specific embodiments and accompanying drawings.

[0046] According to one aspect of the present invention, the embodiment of the present invention provides a micro gas turbine starting system, such as figure 1 shown.

[0047] The starting system of this embodiment mainly includes a micro gas turbine, a motor and a controller. A micro gas turbine is usually composed of a compressor, a turbine (also called a turbine), a combustor, and a regenerator. Generally speaking, a micro gas turbine is also connected to a motor (a micro gas turbine and a motor are also called a micro gas turbine generator set or a micro gas turbine set). The motor, compressor impeller, and turbine impeller of the unit are coaxially installed on the rotor, supported and fixed by bearings (usually air bearings). The motor of the unit is designed fo...

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Abstract

The invention provides a micro gas turbine starting method and system. The starting method comprises the steps that environmental parameters and fuel parameters are acquired, and control parameters ofa micro gas turbine in the starting process are determined based on the environmental parameters and the fuel parameters; a motor is started and accelerated to ignition speed; whether the micro gas turbine meets an ignition condition or not is determined, and an igniter is started to execute ignition operation; whether the ignition operation succeeds or not is judged; and after the ignition operation succeeds, fuel burns, and rotor speed of the micro gas turbine is increased continuously till the motor separates. Through the starting method and system, reliable starting of the micro gas turbine under different environmental conditions can be guaranteed.

Description

technical field [0001] The invention relates to the technical field related to micro gas turbines, in particular to a method and system for starting a micro gas turbine. Background technique [0002] The starting (starting) control of the micro gas turbine is one of the most important control contents of the micro gas turbine system. The existing micro gas turbine has a low ignition success rate during start-up and is prone to start-up failure. Especially as the application of micro gas turbines becomes widespread, it needs to work in different environments such as temperature, humidity, and altitude. These environmental factors greatly affect the combustion performance of air pressure, fuel oil, and temperature changes during the combustion process of air and fuel mixture. , and then affect the start-up process of the micro gas turbine. Unsuccessful ignition leads to frequent start-up of the gas turbine system, which affects the reliability of the micro gas turbine and re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02C7/268F02C7/264F02C9/00
CPCF02C7/268F02C7/264F02C9/00
Inventor 靳普马吉星袁奇骏
Owner 刘慕华