Method for partitioning total output of single shaft gas-steam combined cycle generating set

A generator set and combined cycle technology, which is applied in gas turbine installations, combined combustion mitigation, machine/engine, etc., can solve the blindness of control operation, is not conducive to improving the reliability and economy of single-shaft gas-steam combined cycle units, and is ineffective. benefit etc.

Inactive Publication Date: 2010-04-28
ZHEJIANG UNIV
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Problems solved by technology

In this case, it is not conducive to the operator of the unit to grasp the performance of the key components of the single-shaft gas-steam combined cycle unit, which makes the

Method used

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  • Method for partitioning total output of single shaft gas-steam combined cycle generating set
  • Method for partitioning total output of single shaft gas-steam combined cycle generating set
  • Method for partitioning total output of single shaft gas-steam combined cycle generating set

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Embodiment Construction

[0114] Hereinafter, the present invention will be described in more detail according to the embodiments of the 9FA single-shaft gas-steam combined cycle unit online performance calculation system and the single-shaft unit output division method with reference to the accompanying drawings.

[0115] In this embodiment, although the description is an example of the online performance calculation and the output division method of the single-shaft unit used in the 9FA single-shaft gas-steam combined cycle unit, this system and the calculation method used can also be applied to other combined cycle units.

[0116] refer to figure 1 , 9FA single-shaft gas-steam combined cycle generator set is composed of gas turbine, waste heat boiler, steam turbine and generator, and the gas turbine, steam turbine and generator are connected on one shaft. The working process is that the fresh air is filtered by the filter, then enters the compressor to be compressed and boosted, and mixes with the ...

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Abstract

The invention discloses a method and a system for partitioning total output of a single shaft gas-steam combined cycle generating set. The method comprises the following steps: (a) establishing a mathematical model of a gas compressor, a combustion chamber and a gas turbine; (b) acquiring a real-time production parameter of the generating set; (c) calculating the power of the gas turbine and the consumed power of the gas compressor according to the results of the steps (a) and (b); (d) deducting the consumed power of the gas compressor from the generated power of the gas turbine to obtain the output of the gas turbine; (e) listing a material balance equation and an energy balance equation for a waste heat boiler; and (f) establishing a mathematical model of a steam turbine, listing a heat balance equation for the waste heat boiler, and calculating the output of the steam turbine through the mathematical model of the steam turbine. The method and the system can master the contributions of the gas turbine and the steam turbine to the total output of the set and the performance of each key part in real time so as to perform effective adjustment and control according to the actual conditions of the set.

Description

technical field [0001] The invention relates to performance monitoring and control of a generator set, in particular to a method and system for dividing the total output of a single-shaft gas-steam combined cycle unit. Background technique [0002] Worldwide, gas turbines and gas-steam combined cycle power generation have become one of the main development directions of thermal power generation. In China, especially in the eastern region, the economy is developing rapidly. Gas-steam combined cycle power generation has the advantages of high thermal efficiency, low pollutant emission, short construction period, and good load adaptability. One of the promising directions. [0003] With the development of gas-steam combined cycle theory and technology, the power of the unit and the complexity of the equipment are increasing, so there are higher requirements for the stability of the unit. On the other hand, in order to improve the competitiveness of the power plant in the marke...

Claims

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Application Information

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IPC IPC(8): F02C6/18
CPCY02E20/16
Inventor 陈坚红盛德仁李蔚
Owner ZHEJIANG UNIV
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