Method and system for determining load stability state of thermal power generating unit

A thermal power unit, stable state technology, applied in the field of soft measurement, can solve the problem of being unable to accurately determine the steady state of thermal power unit load

Active Publication Date: 2016-04-06
YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST +1
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] The embodiment of the present invention provides a method and system for determining the steady load state of the thermal power unit to solve the problem that the thermal power unit in the prior art cannot accurately determine the stable load state of the thermal power unit

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  • Method and system for determining load stability state of thermal power generating unit
  • Method and system for determining load stability state of thermal power generating unit
  • Method and system for determining load stability state of thermal power generating unit

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Embodiment Construction

[0046] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0047] see figure 1 , is a schematic flow chart of a method for determining the steady load state of a thermal power unit provided in an embodiment of the present invention, the method comprising:

[0048] S101, obtaining the load data of the thermal power unit;

[0049] Read the continuous load data at unit time intervals in the hist...

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Abstract

The embodiment of the invention discloses a method and a system for determining the load stability state of a thermal power generating unit. The method comprises the steps of obtaining the load data of the thermal power generating unit; storing the load data to a database, working out the standard deviations of the load data according to the load data, counting the standard deviations of the load data, obtaining a standard deviation threshold for distinguishing the load stability state and the load instability state, and determining the load stability state of the thermal power generating unit. According to the method provided by the invention, distinguishing and screening are performed in the historical data by the statistical means, and thereby the stability state and the instability state of the historical loads of the thermal power generating unit are finally distinguished, the start time and stop time of the load stability state of the thermal power generating unit are determined, and a foundation is provided for further exploring the operating characteristics of the thermal power generating unit.

Description

technical field [0001] The invention relates to the technical field of soft measurement, in particular to a method and a system for determining the load steady state of a thermal power unit. Background technique [0002] Thermal power generation is a power generation method that utilizes the thermal energy generated during the combustion of solid, liquid, and gaseous fuels such as coal, oil, and natural gas, and converts it into electrical energy through thermal power units. Affected by various factors such as the load of the thermal power unit and the change of fuel composition, the operating state of the thermal power unit is constantly changing, generally divided into two states of load steady state and load unsteady state. Unsteady load includes excessive load and too small load. Whether the load is large or small, it will cause irreversible damage to the generator, thus directly affecting the production of thermal power generation. [0003] The existing monitoring and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q50/06
CPCG06Q50/06
Inventor 李孟阳郝勇生赵明王培红梁俊宇赵刚张晓磊苏志刚刘朝阳
Owner YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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