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Photo-thermal power station optimization control method for multiple operation scenes

A CSP, optimized control technology, applied in solar collector controllers, photovoltaic power generation, solar thermal power generation, etc., can solve the problems of single control mode, unable to support the safe and stable operation of the power grid, and achieve rich adjustment and control methods , the effect of good practical value

Inactive Publication Date: 2022-02-11
STATE GRID JIANGSU ELECTRIC POWER CO LTD SUQIAN POWER SUPPLY BRANCH
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solve the problem that the single operation control mode of the solar thermal power station cannot support the safe and stable operation of the power grid

Method used

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  • Photo-thermal power station optimization control method for multiple operation scenes
  • Photo-thermal power station optimization control method for multiple operation scenes
  • Photo-thermal power station optimization control method for multiple operation scenes

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Embodiment Construction

[0011] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0012] An optimal control method for photothermal power plants oriented to multiple operating scenarios, the steps of which are as follows figure 1 shown. Specifically:

[0013] Step 1. Basic data collection;

[0014] The basic data includes obtaining the installation area of ​​the mirror field of the photothermal power station, the light intensity in the next 24 hours, the light-to-heat conversion efficiency of the heat collection link, the heat-to-electricity conversion efficiency of the power generation link, the hourly electricity load of important users and non-important users, Parameters such as temperature range of molten salt in hot salt tank and cold salt tank, installation area of ​​photovoltaic modules, photovoltaic power generation efficiency, cooling energy efficiency coefficient of lithium bromide unit, hourly cooling load dem...

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Abstract

The invention relates to the field of power system dispatching, in particular to a photo-thermal power station optimization control method for multiple operation scenes. The method comprises the following steps of S1, acquiring basic design parameters and load prediction data of the photo-thermal power station, S2, selecting an operation mode of the photo-thermal power station, S3, introducing a fused salt mass conservation constraint, a fused salt energy balance constraint, a fused salt temperature operation range constraint, a heat collection link heat absorption constraint, a power generation link operation constraint, a photovoltaic power generation power constraint, a lithium bromide unit output constraint and a power balance constraint, and S4, solving an optimization control problem formed in the step S2 and the step S3 by adopting a branch-bound method. A photo-thermal power station multi-mode optimal control problem with complete constraint and accurate model is formed. The problems that a photo-thermal power station is single in operation control mode and cannot support safe and stable operation of a power grid are solved.

Description

technical field [0001] The invention relates to the field of power system dispatching, in particular to an optimal control method for photothermal power plants oriented to multiple operating scenarios. Background technique [0002] As a new type of dispatchable solar energy utilization method emerging in recent years, solar thermal power generation is expected to realize large-scale utilization of new energy due to its flexible and efficient operation characteristics. The solar-thermal power station itself contains a heat storage device, which can transfer the heat energy stored in the low-load period to the peak-load period for power generation, and has good controllability and dispatchability. Therefore, the emergence of the solar-thermal power station provides a brand-new means of regulation and control. However, the dispatchable potential of solar thermal power plants has not attracted enough attention so far, resulting in a relatively single operation mode, and most of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/48H02J3/38H02J3/14G06Q10/04G06Q10/06G06Q50/06F24S50/00F25B15/06
CPCH02J3/48H02J3/388H02J3/381H02J3/144H02J3/003H02J3/008G06Q10/04G06Q10/06311G06Q50/06F25B15/06F24S50/00H02J2300/24Y02E10/40Y02E10/56Y02E40/70Y02A30/27Y02B30/70Y02B70/30Y02B70/3225Y04S10/50Y04S20/222Y04S20/244
Inventor 邵开冻荆江平周福举李力尹永昌石爱祥徐辉李鸿杨
Owner STATE GRID JIANGSU ELECTRIC POWER CO LTD SUQIAN POWER SUPPLY BRANCH
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