Gas Turbine Control System Based on Modular Energy Control

Abstract

The invention discloses a gas turbine control system based on modularization energy control and belongs to the field of gas turbine control. The gas turbine control system comprises a micro gas turbine, a power control module and fuel control subsystems. Each fuel control subsystem comprises a fuel control module and a fuel classification device. In different fuel types of fuel control subsystems, the parts of the fuel control modules are different and the parts of the fuel classification device are different too. The power control module is used for calculating given rotation speed according to actual power and given power, calculating given exhaust temperature according to actual rotation speed and the given rotation speed, calculating given energy according to given the exhaust temperature and actual exhaust temperature, and calculating needed fuel quantity according to the given energy and a fuel heat value. The power control module determines a fuel control command by the calculations and sends the fuel control command to the fuel control module, and the fuel control module carries out corresponding control according to the command. The fuel quantity is determined according to energy and low-emission combustion of the fuel can be realized; and the gas turbine control system is applicable to combustion control of gas turbines.

Description

technical field [0001] The invention relates to a gas turbine control system based on modular energy control, which belongs to the field of gas turbine control. Background technique [0002] As a power generation system with strong practicability, low pollution and low maintenance, micro gas turbine power station is widely used in the control field of gas turbine power generation system. [0003] In order to achieve the purpose of fuel combustion with low emissions, [0004] The traditional micro gas turbine control system often regards the output power of the micro gas turbine as a linear relationship with the speed, sets the limit alarm value of the exhaust temperature, and establishes an adjustment rule based on the corresponding relationship between the speed and the fuel supply. [0005] Power is the target parameter of micro gas turbine control, because the traditional micro gas turbine control system simply regards the output power of the micro gas turbine power gene...

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Problems solved by technology

[0005] Power is the target parameter of micro gas turbine control, because the traditional micro gas turbine control system simply regards the output power of the micro gas turbine power generation system as a linear relationship with the rotational speed, and controls the fuel supply through the rotational speed, this linear control system makes the micro gas turbine Once the output power of the power generation system changes, the speed of the micro gas turbine will change, and the fuel supply will change accordingly, resulting in unstable operation of the micro gas turbine.

[0006] Moreover, in existing solutions, one micro gas turbine power generation system often corresponds to one control system. If the fuel type of the micro gas turbine power generation system needs to be changed, such as from gas to fuel oil, the control system needs to be completely replaced, and the purpose of multi-fuel adaptation cannot be achieved.

[0007] It can be seen that in the prior art, there is no control scheme for micro gas turbines, which can control the low-emission combustion of gas turbines and at the same time realize the adaptation to various types of fuels

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