Method and system for optimizing starting and stopping of thermal power generating unit in wind-solar-thermal storage system

A technology for thermal power units and wind power, applied in photovoltaic power generation, wind power generation, instruments, etc., can solve the problems of low utilization rate of wind and light resources and high operating costs, and achieve the effect of reducing consumption, operating costs, and time complexity.

Pending Publication Date: 2022-04-05
HUANENG CLEAN ENERGY RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For this reason, the first purpose of this application is to propose a method for optimizing the start-up and shutdown of thermal power units in the wind-solar thermal storage system to solve the technical problems of high operating costs and low utilization of wind and light resources

Method used

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  • Method and system for optimizing starting and stopping of thermal power generating unit in wind-solar-thermal storage system
  • Method and system for optimizing starting and stopping of thermal power generating unit in wind-solar-thermal storage system
  • Method and system for optimizing starting and stopping of thermal power generating unit in wind-solar-thermal storage system

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Embodiment 1

[0071] figure 1 It is a flow chart of a method for optimizing the start-up and stop of thermal power units in the wind-solar thermal storage system provided by the embodiment of the present application.

[0072] Such as figure 1 As shown, the embodiment of the present application provides a method for optimizing the start-up and shutdown of thermal power units in the wind-solar thermal storage system, the method includes the following steps:

[0073] Step 110, obtaining historical wind power generation, photovoltaic historical power generation, grid historical demand, preset energy usage principles and preset constraint conditions for each preset period of the year.

[0074] The embodiment of this application obtains the historical power generation of wind power, historical photovoltaic power generation and historical demand of the power grid in any year, and presets energy usage principles and constraints, where the constraints include but are not limited to, the power range...

Embodiment 2

[0082] figure 2 It is a flow chart of a method for optimizing the start-up and stop of thermal power units in the wind-solar thermal storage system provided by the embodiment of the present application.

[0083] Such as figure 2 As shown, the embodiment of the present application provides a method for optimizing the start-up and shutdown of thermal power units in the wind-solar thermal storage system, the method includes the following steps:

[0084] Step 210, obtaining historical wind power generation, photovoltaic historical power generation, grid historical demand, preset energy usage principles and preset constraint conditions for each preset period of the year.

[0085] Step 220, determine the total power generation of thermal power units and energy storage equipment in each preset period according to the historical power generation of wind power, historical photovoltaic power generation and historical grid demand, and calculate the total power generation from the tota...

Embodiment 3

[0120] Figure 5 It is a schematic structural diagram of an optimized start-stop system for a thermal power unit in a wind-solar-thermal storage system provided by an embodiment of the present application.

[0121] Such as Figure 5 As shown, the embodiment of the present application provides an optimized start-stop system for thermal power units in the wind-solar thermal storage system, the system includes:

[0122] The acquiring module 10 is used to acquire historical wind power generation, photovoltaic historical power generation, grid historical demand, preset energy usage principles and preset constraint conditions for each preset period of the year;

[0123] The first determination module 20 is used to determine the total power generation of thermal power units and energy storage equipment in each preset period according to the historical power generation of wind power, historical photovoltaic power generation and historical demand of the power grid, and according to th...

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Abstract

The invention discloses a method and system for optimizing starting and stopping of a thermal power generating unit in a wind-solar-thermal storage system, and relates to the technical field of wind-solar-thermal storage resource optimization. The method comprises the following steps: determining the power generation amount of a thermal power generating unit in each preset time period according to the obtained wind power historical power generation amount, photovoltaic historical power generation amount, power grid historical demand, a preset energy use principle and a preset constraint condition in each preset time period all the year round; calculating the minimum annual investment and operation cost of the thermal power generating unit under a group of preset constraint conditions and a corresponding starting state sequence of the thermal power generating unit according to the generating capacity of the thermal power generating unit; the method comprises the following steps: acquiring a plurality of minimum annual investment and operation costs and a starting state sequence by adjusting a preset constraint condition, and selecting the annual minimum investment and operation cost with the minimum cost and the corresponding starting state sequence of the thermal power generating unit from the plurality of minimum annual investment and operation costs; according to the scheme, accurate shutdown or startup of the thermal power generating unit is realized, the operation cost of the thermal power generating unit is reduced, and the utilization rate of wind and light resources is improved.

Description

technical field [0001] The present application relates to the technical field of wind-solar-thermal-storage resource optimization, and in particular to a method and system for optimizing the start-up and shutdown of thermal power units in a wind-solar-thermal-storage system. Background technique [0002] At present, new energy power generation is developing rapidly, but wind and solar hybrid power generation systems are greatly affected by climate and environment. In order to ensure the continuity and reliability of load power consumption, wind power generation, photovoltaic power generation, and energy storage can be used according to the grid load demand. The combination of equipment and thermal power units can solve the problems of power supply reliability and power quality of the wind-solar hybrid power generation system. [0003] However, in the existing solutions, only when the thermal power unit is in the maintenance state, the thermal power unit is in the outage stat...

Claims

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Application Information

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IPC IPC(8): H02J3/46H02J3/38G06Q10/04G06Q50/06
CPCY02E10/56Y02E10/76
Inventor 汪琳朱勇王建星刘明义徐若晨曹曦刘大为曹传钊裴杰李昊
Owner HUANENG CLEAN ENERGY RES INST
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