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Gas turbine control method and system

A technology of gas turbines and control methods, applied in the direction of electric controllers, controllers with specific characteristics, etc., can solve problems such as discarding, and achieve the effect of avoiding spikes

Active Publication Date: 2016-12-28
CHINA UNITED GAS TURBINE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This one-size-fits-all approach avoids the defects of the differential term, but at the same time discards the advantages of the advanced adjustment of the differential term

Method used

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  • Gas turbine control method and system
  • Gas turbine control method and system
  • Gas turbine control method and system

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Embodiment Construction

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the Some, but not all, embodiments are invented. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0026] Such as figure 2 As shown, this embodiment discloses a gas turbine control method, including:

[0027] S1. Obtain the state parameter reference and actual state parameters of the gas turbine;

[0028] S2. Transmitting the state parameter benchmark as a reference input and the actual state parameter as a measured value to a pre-established PID controller to obt...

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Abstract

The invention discloses a gas turbine control method and system. The phenomenon that a conventional PID controller easily makes sharp pulses appear in operation signals can be avoided without eliminating differential terms. The method includes the steps of obtaining state parameter benchmarks and actual state parameters of a gas turbine; transmitting the state parameter benchmarks as the reference input and the actual state parameters as the measurement value to a pre-established PID controller to obtain the fuel amount of the gas turbine, wherein the integer control of the PID controller is located in a forward channel, and the differential control of the PID controller is located in a feedback channel; controlling the working state of the gas turbine according to the fuel amount of the gas turbine.

Description

technical field [0001] The invention relates to the field of gas turbine control, in particular to a gas turbine control method and system. Background technique [0002] The control methods of heavy-duty gas turbines used in power plants mainly include fuel volume and air flow, mainly for the control of fuel volume. Since the control objectives are different in different stages of gas turbine operation, mainstream gas turbine control systems generally adopt the minimum value selection method. Different control schemes are used to achieve different control objectives. Except for start and stop, other control methods are closed-loop PID control, such as figure 1 Shown is the structural block diagram of the existing PID control, composed of figure 1 It is easy to know the following relationship: [0003] Y ( s ) R ( ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B11/42
Inventor 刘蕾
Owner CHINA UNITED GAS TURBINE TECH CO LTD
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