A coal-fired power internal thermal cycle system and its method for improving the level of wind power consumption

A circulation system and heat storage system technology, applied in the field of power dispatching, can solve the problems of less research on the flexibility of conventional coal-fired power units

Active Publication Date: 2022-05-31
SHANXI UNIV
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Problems solved by technology

However, at present, the main research in my country focuses on the thermoelectric decoupling of cogeneration units, and there are few studies on the flexibility transformation of conventional coal-fired power units.

Method used

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  • A coal-fired power internal thermal cycle system and its method for improving the level of wind power consumption
  • A coal-fired power internal thermal cycle system and its method for improving the level of wind power consumption
  • A coal-fired power internal thermal cycle system and its method for improving the level of wind power consumption

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Embodiment Construction

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[0105] The optimal scheduling operation framework of coal power and wind power based on time series production simulation is shown in Figure 2. In order to be more realistic

[0106] S201, according to the historical forecast data of wind power, generate a set of wind power forecast scenarios a few days ago;

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[0110] S203, when the coal-fired power unit startup plan is formulated, according to the output data of the ultra-short-term forecast of wind power during intraday dispatch,

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[0114] As shown in Figure 3, it is a comparison chart of the power generation output data before and after the transformation of the coal-fired power unit in a typical week. Coal Power Unit

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Abstract

The invention belongs to the field of electric power dispatching, and in particular relates to an internal thermal cycle system of coal power and a method for improving the accommodation level of wind power. The invention considers the constraints of the boiler combustion system of the coal-fired power unit, the high and low temperature heat storage system, and the steam power generation system, establishes a mathematical model of the steam extraction and dual heat storage system, and constructs an optimal scheduling system for maximum wind power consumption. Through the example simulation, the economy and wind abandonment rate before and after the retrofit of steam extraction and double heat storage are analyzed, and the effects of different wind power installed capacity and heat storage capacity are compared and analyzed.

Description

An internal thermal cycle system of coal power and method for improving wind power consumption level technical field The present invention belongs to the field of electric power dispatching, be specifically related to a kind of coal power internal thermal circulation system and its promotion wind power consumption horizontal method. Background technique [0002] my country will vigorously develop wind power in the future, and further increase the proportion of new energy installed capacity, but the problem of wind curtailment is also more acute. out. According to the consideration of the key issues of the "14th Five-Year" energy development plan of the National Energy Administration, it is pointed out that the peak and valley of my country's power load is almost the same continuous expansion, the problem of clean energy consumption during the low load period is prominent, and during the peak load period, the guarantee of power supply is under pressure increase. Insuf...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/46F28D20/00F01D15/10F01K11/02F01K17/06
CPCH02J3/46F01K11/02F01K17/06F01D15/10F28D20/00H02J2203/20Y02E70/30
Inventor 赵兴勇李京虎
Owner SHANXI UNIV
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