Method for determining optimal value of operation condition of gas-steam combined cycle generating unit

A combined cycle and generator technology, applied in computer parts, instruments, characters and pattern recognition, etc., can solve the problems of not being able to dig and determine the optimal value of the operating conditions of the unit, and not improving the economic operation level of the unit, so as to improve the sample size. Quantity and effectiveness, the effect of improving the level of economic operation, and improving the quality of data mining

Inactive Publication Date: 2016-10-26
SHANGHAI UNIVERSITY OF ELECTRIC POWER +1
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Problems solved by technology

Although this method can reasonably distribute the load among the units in the whole plant in real time under the premise of ensuring the safe and environmentally friendly operation of the units, it cannot dig out and determine the optimal value of the operating conditions of the units, thus failing to improve the economic operation level of such units

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  • Method for determining optimal value of operation condition of gas-steam combined cycle generating unit
  • Method for determining optimal value of operation condition of gas-steam combined cycle generating unit
  • Method for determining optimal value of operation condition of gas-steam combined cycle generating unit

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Embodiment 1

[0033] This embodiment provides a method for determining the optimal value of the operating condition of a gas-steam combined cycle generator set, which is divided into 3 steps:

[0034] S1, collect the measuring point parameters of unit operation, such as real-time generator end output (unit load), volume flow rate of blast furnace gas, air compressor inlet temperature, air compressor outlet temperature, gas turbine outlet flue gas temperature and boiler outlet smoke oxygen content of the gas. Here, 49,558 sets of operating data of a certain unit were collected from September 1, 2015 to October 30, 2015. The parameter data of some measuring points are shown in Table 1.

[0035] Table 1 Data classification of measuring point parameters in unit operation

[0036]

[0037] S2. According to the selected unit operating state constraints, use the k-means algorithm to classify the operating conditions of the unit, and obtain 8 stable operating conditions of the unit. Then, fro...

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Abstract

The invention relates to a method for determining an optimal value of the operation condition of a gas-steam combined cycle generating unit, and the method comprises the following steps: S1, building an online monitoring and economical operation system of the gas-steam combined cycle generating unit, and collecting the measuring point parameters of the unit; S2, carrying out the classification and screening of the operation conditions of the unit through employing a clustering algorithm, obtaining N stable operation condition classes, and distributing the measuring point parameters, which can reflect the operation condition of the unit, to different stable operation condition classes; S3, carrying out the data mining of the optimal values of the measuring point parameters for each stable operation condition class, obtaining the optimal value of each stable operation condition class, calculating the confidence of each optimal value, and determining the final preferred value of each stable operation condition class according to the confidence. Compared with the prior art, the method facilitates the improvement of economical operation level of the unit.

Description

technical field [0001] The invention relates to a combined cycle power generation technology, in particular to a method for determining an optimal value of an operating condition of a gas-steam combined cycle generator set. Background technique [0002] After my country's electric power system reform, the policy of "separating the power plant from the grid and bidding for the grid" has been implemented. All power generation companies must devote themselves to improving the economy of unit operation, effectively reducing power generation costs, improving economic benefits, and enhancing competition in the power market. Therefore, it is very important to improve the economy of unit operation and save power generation costs. The best way to improve power generation efficiency is technological innovation to improve the performance of power generation equipment, but the upgrading of technology requires a lot of financial and material resources, which is a long and complicated proc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/62
CPCG06F18/23213
Inventor 顾立群彭道刚于龙云夏飞胡捷邓敏慧罗志疆
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER
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