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Power and energy balance optimization method based on wind power capacity credibility

A technology of electric power balance and optimization method, which is applied in the direction of wind power generation, electrical components, circuit devices, etc., can solve the problems that it is difficult to meet the requirements of wind power to participate in dispatching, and it is impossible to judge the location of abandoned wind, so as to improve the speed and enhance the adjustable sex, the effect of reducing variables

Active Publication Date: 2018-11-23
HUBEI ELECTRIC ENG CORP +1
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Problems solved by technology

In order to give priority to the consumption of wind power, some models consider wind curtailment, and the penalty cost is included in the objective function, but it is impossible to judge the location of the curtailed wind
[0004] In addition, the traditional tie line power transmission plan is compiled by dispatchers based on experience, which is difficult to meet the requirements for wind power with uncertain output to participate in dispatching

Method used

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  • Power and energy balance optimization method based on wind power capacity credibility
  • Power and energy balance optimization method based on wind power capacity credibility
  • Power and energy balance optimization method based on wind power capacity credibility

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Embodiment Construction

[0054] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments to facilitate a clear understanding of the present invention, but they do not limit the present invention.

[0055] attached figure 1 It is a flow chart of an electric power balance optimization method based on wind power capacity reliability in the present invention, which includes the following steps:

[0056] 1) Collect the data of thermal power and hydropower units in each province in the study area.

[0057] The data of hydropower units in each province in the study area includes the installed capacity of hydropower and thermal power equivalent units, the maximum unit output, the minimum unit output, the minimum start-up time, the minimum downtime and the unit’s ramp rate data. Among them, the hydropower acquisition method is as follows:

[0058] All hydroelectric units are equivalent to one unit, and the installed capacity, maximu...

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Abstract

The invention relates to the technical field of power system automation, in particular to a power and energy balance optimization method based on wind power capacity credibility. The power and energybalance optimization method comprises the steps that data of thermal power and hydropower units of provinces in a study area are collected; load forecast curves and wind power forecast outputs of theprovinces in a decision-making period are obtained; wind power credible forecast outputs are obtained according to the wind power capacity credibility and the wind power forecast outputs; a tie line transmission power plan is drawn up, the maximum and the minimum of transmission power are set in time segments; the minimum operating cost of the whole network is used as a target operation function,and power balance constraint, unit operation constraint, tie line transmission constraint, electric quantity constraint and rotation reserve constraint are used as constraint conditions, so that a power and energy balance optimization model is established; and the optimal outputs of generator sets of the provinces and the transmission power of tie lines between the provinces are obtained by solving the model. The uncertain wind power outputs are converted into credible unit outputs through wind power credibility calculation, and the problem that a traditional power and energy balance method cannot properly consider wind power is solved.

Description

technical field [0001] The invention relates to the technical field of electric power system automation, in particular to an electric power balance optimization method based on wind power capacity reliability. Background technique [0002] In recent years, with the slowdown of power demand, the increasingly prominent contradictions in the development of coal power, and the large-scale continuous connection of intermittent energy sources such as new energy to the power grid, the uncertainty and complexity of the medium and long-term power balance have increased significantly. Regional power grids are facing Due to the high pressure of peak regulation, traditional power balance analysis is difficult to meet the accuracy requirements of large-scale access to power grid planning for new energy. As a large number of UHV AC and DC transmission lines have been built and put into operation or have entered the construction schedule, my country's UHV technology has made a huge breakth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J3/24H02J3/38
CPCH02J3/00H02J3/003H02J3/24H02J3/381H02J3/386H02J2203/20Y02E10/76
Inventor 魏聪陈红坤方开俊白帆范传光姜欣赵璐林春程帅鲜杏
Owner HUBEI ELECTRIC ENG CORP
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