Combined heat and power generation-based photothermal power generation and thermoelectric unit combined peak adjustment optimization model

A technology of thermoelectric units and solar thermal power generation, which is applied in the directions of instruments, data processing applications, forecasting, etc., and can solve the problems of reduced or lost peak-shaving capacity, and the inability to systematically accept wind power to provide peak-shaving capacity, etc.

Active Publication Date: 2018-07-06
WIND POWER TECH CENT OF GANSU ELECTRIC POWER +2
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Problems solved by technology

The reason is mainly that thermal power units account for a relatively high proportion in the “Three Norths” region, and the peak-shaving capability of such units is greatly reduced or even lost due to the operation constraint of “heating to determine electricity” during the winter heating period, so that they cannot provide The system accepts wind power to provide sufficient peak-shaving capacity

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  • Combined heat and power generation-based photothermal power generation and thermoelectric unit combined peak adjustment optimization model
  • Combined heat and power generation-based photothermal power generation and thermoelectric unit combined peak adjustment optimization model
  • Combined heat and power generation-based photothermal power generation and thermoelectric unit combined peak adjustment optimization model

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Embodiment Construction

[0117] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

[0118] (1) Analyze the operating mechanism of solar thermal power generation and establish a simplified model according to its energy flow process

[0119] 1.1) Analyze the operating mechanism of solar thermal power generation;

[0120]A solar thermal power station usually consists of three parts, a solar field (solar field, SF), a thermal storage system (thermal storage system, TSS) and a thermal cycle (power cycle, PC). Among them, the light field is mainly used to collect solar energy, which can be divided into trough type, tower type, butterfly type and linear Fresnel type accord...

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Abstract

The invention relates to a combined heat and power generation-based photothermal power generation and thermoelectric unit combined peak adjustment optimization model. A process specifically comprisesthe steps of (1) analyzing a photothermal power generation running mechanism and building a simplified model according to an energy flow process; (2) building a steam extraction type thermoelectric unit running model; (3) building a combined heat and power generation running mode-based photothermal power station and thermoelectric unit combined system running model; and (4) according to unit running constraints in a system, building and solving a photothermal power generation peak adjustment optimization model. Compared with a conventional optimization model, heat balance constraints of the system, thermoelectric coupling constraints of a thermoelectric unit, running constraints of a photothermal power station and the like are added; the problem of wind abandoning in an off-peak time period of the power system during a winter heating stage is effectively solved; and the wind and power consumption level and the system running economy of the power system are improved.

Description

technical field [0001] The invention relates to an optimization model for joint peak regulation of photothermal power generation and thermoelectric units based on the operation mode of cogeneration of heat and power, and belongs to the field of electric power systems and automation thereof. Background technique [0002] At present, the problem of a large number of wind curtailment caused by insufficient peak-shaving capacity of the system in the "Three North" region during the winter heating period has attracted the attention of the whole society. The reason is mainly that thermal power units account for a relatively high proportion in the “Three Norths” region, and the peak-shaving capability of such units is greatly reduced or even lost due to the operation constraint of “heating to determine electricity” during the winter heating period, so that they cannot provide The system accepts wind power to provide sufficient peak-shaving capacity. If the thermal load borne by the...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q50/06
CPCG06Q10/04G06Q50/06
Inventor 汪宁渤丁坤董海鹰房磊李津周识远陈钊马明张健美陟晶黄蓉张珍珍
Owner WIND POWER TECH CENT OF GANSU ELECTRIC POWER
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