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Wind power pumped storage scheduling method considering conditional risk and uncertainty

An uncertain, pumped storage technology, applied to wind power generation, power generation prediction in AC networks, electrical components, etc., can solve harmful and beneficial problems, and achieve fluctuation suppression, smooth income, high economy and safety sexual effect

Active Publication Date: 2022-02-11
ECONOMIC TECH RES INST OF STATE GRID HENAN ELECTRIC POWER +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Its uniqueness lies in the fact that uncertainties may be detrimental or beneficial to the goals set by the system, and quantify the impact of two different aspects of uncertainties

Method used

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  • Wind power pumped storage scheduling method considering conditional risk and uncertainty
  • Wind power pumped storage scheduling method considering conditional risk and uncertainty
  • Wind power pumped storage scheduling method considering conditional risk and uncertainty

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Embodiment Construction

[0066] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention, and are specifically described below in conjunction with the embodiments.

[0067] Such as figure 1 , 2 Shown in and 3, the present invention comprises the steps:

[0068] S1: Construct a nonlinear pumped storage model, the specific process is as follows:

[0069] The pumped storage model refers to the output power of the pumped storage unit, and the output power of the pumped storage unit is a nonlinear function of the net water head, water flow and unit efficiency, and the net water head and the upper and lower heads and head losses Relevant, the upper and lower wa...

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Abstract

The invention relates to a wind power pumped storage scheduling method considering conditional risk and uncertainty. The method comprises the following steps: constructing a nonlinear pumped storage model; converting nonlinearity into linearity, and simplifying a pumped storage model; coping with the uncertainty of wind power output, and obtaining an uncertainty set of the wind power output; measuring the value-at-risk caused by the uncertainty of the day-ahead electricity price; and formulating a corresponding scheduling strategy by taking system income maximization as a target. According to the method, pumped storage and new energy can be matched for power generation, fluctuation of wind power output is restrained, a corresponding scheduling strategy is formulated, the income of the system is guaranteed, and high economical efficiency is achieved.

Description

technical field [0001] The invention belongs to the technical field of dispatching of new energy electric power systems, and in particular relates to a dispatching method of wind power pumped storage energy considering condition risk and uncertainty. Background technique [0002] At present, as the proportion of new energy in the grid is getting higher and higher, its impact is becoming more and more prominent. Affected by the wind speed, the wind power output has the characteristics of intermittent, random and fluctuation. At the same time, due to the poor adjustability of the wind turbines, the wind speed at night is generally higher than the wind speed during the day, and the wind power output usually has the characteristic of reverse peak regulation, which is forced to make the night The output of conventional thermal power units is reduced or even shut down, which increases the peaking demand of the power system. At the same time, with the deepening of electricity mark...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J3/28H02J3/38H02J3/24G06Q10/06G06Q50/06
CPCH02J3/004H02J3/008H02J3/28H02J3/381H02J3/24G06Q10/06312G06Q50/06H02J2203/20H02J2300/28Y02E10/76Y02E70/30
Inventor 赵文杰王世谦李虎军刘军会邓方钊杨钦臣邓振立贺明康吴雄刘炳文尹硕柴喆郭兴五
Owner ECONOMIC TECH RES INST OF STATE GRID HENAN ELECTRIC POWER
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