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Economic evaluation method and system for wind farm climbing event

An economical and wind farm technology, applied in the field of economic evaluation of wind farm climbing events, can solve problems such as power imbalance of system regulation ability, load shedding, and node voltage limit, etc., to achieve unique calculation results, perfect theoretical system, and The effect of low variable data requirements

Inactive Publication Date: 2018-11-13
SHANGHAI DIANJI UNIV
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  • Abstract
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Problems solved by technology

Especially when the weather conditions are severe and complex, if the wind power fluctuates up and down from the plan, problems such as power imbalance, line overload, and node voltage exceeding the limit may occur due to the limited system adjustment capacity, which will lead to abandonment. wind or load shedding
Especially when considering the impact on wind turbine equipment when the weather conditions are relatively severe and complex, the existing research has not analyzed the system operation risk caused by the ramp-up event when large-scale wind power is connected to the grid from the perspective of economic risk

Method used

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  • Economic evaluation method and system for wind farm climbing event
  • Economic evaluation method and system for wind farm climbing event
  • Economic evaluation method and system for wind farm climbing event

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Embodiment Construction

[0024] According to one or more embodiments, a method for evaluating the economics of a wind farm climbing event, the evaluation method includes steps:

[0025] Establish a power shortage function, and use two indicators, the degree of power shortage D representing the risk of power shortage, and the probability of power shortage P, as a function of power shortage;

[0026] Establish the economic risk function, the economic risk function includes two indicators of damage degree W and economic loss L;

[0027] Establish a Logistic regression model, which is used to simulate the probability distribution of the power shortage series;

[0028] Determine the weight of damage degree W and economic loss L based on principal component analysis;

[0029] Calculate economic risk.

[0030] According to one or more embodiments, a system for evaluating the economics of a wind farm climbing event, the evaluation system includes:

[0031] The power shortage function calculation module use...

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Abstract

An economic evaluation method for a wind farm climbing event comprises the steps of: establishing a power shortage function; establishing an economic risk function that includes two indicators of damage degree W and economic loss L; establishing a Logistic regression model, which is used to simulate the probability distribution of the series of power shortages; determining the weight of the damagedegree W and the economic loss L based on principal component analysis; and calculating the economic risk.

Description

technical field [0001] The invention belongs to the technical field of wind power, and in particular relates to a method and system for evaluating the economics of a ramping event of a wind farm. Background technique [0002] With the depletion of global fossil energy and the deterioration of the living environment, renewable energy represented by wind power has developed rapidly around the world. The installed capacity of wind power in my country continues to grow, and the development and utilization of wind power presents the characteristics of "large-scale" and "high concentration". The proportion of wind power connected to the grid is also increasing, but the strong uncertainty of wind power has brought a series of problems to the operation of the grid . Especially in the context of the high proportion of renewable energy power systems in the future and the frequent occurrence of extreme weather events caused by global climate change, the output of large-scale wind power...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/0635G06Q50/06
Inventor 程亚丽王鸿王致杰江秀臣盛戈皞
Owner SHANGHAI DIANJI UNIV
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