A method for real-time forecasting and calculation of wind power based on spatially averaged wind speed

A calculation method and real-time forecasting technology, applied in wind power generation, single-network parallel feed arrangement, climate change adaptation, etc., can solve problems such as grid power balance and adverse effects of frequency regulation, wind power fluctuations, etc.

Active Publication Date: 2016-02-24
NORTHEAST DIANLI UNIVERSITY
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Problems solved by technology

When large-scale wind farms are connected to the grid for operation, large wind power fluctuations will have adverse effects on the power balance and frequency regulation of the grid

Method used

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  • A method for real-time forecasting and calculation of wind power based on spatially averaged wind speed
  • A method for real-time forecasting and calculation of wind power based on spatially averaged wind speed
  • A method for real-time forecasting and calculation of wind power based on spatially averaged wind speed

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Embodiment Construction

[0038] A method for real-time prediction and calculation of wind power based on spatial average wind speed of the present invention will be described in detail below using the drawings and embodiments.

[0039] A kind of wind power real-time forecast calculation method based on spatial average wind speed of the present invention comprises the following steps:

[0040] 1) Data collection

[0041] Collect the actual wind speed V per minute of each wind turbine in the wind farm 1 i (t), i=1,...,n and the actual wind speed V of each wind turbine 1 i The data of (t) must cover each wind turbine in the power-on state, that is, i=1,...,n, n is the number of wind turbines in the power-on state of the wind farm;

[0042] 2) Data processing

[0043] According to the data collected in the data collection step 1), the actual wind speed V per minute of the entire wind farm is obtained by summing the wind speed according to the number of wind turbines in the power-on state 1 (t), sum ...

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Abstract

The invention discloses a wind power real-time prediction calculation method based on spatial average wind speed. The wind power real-time prediction calculation method is characterized by comprising the following steps: data acquisition and preprocessing: acquiring the practical wind speed value of a wind power plant needing to be predicted in one continuous hour, and eliminating poor data; data analysis and prediction: analyzing the practical wind speed data of each wind power unit of in wind power plant in an actual measurement power-on state to obtain the practical average wind speed data of the whole plant, calculating the prediction value of wind speed of the whole wind power plant in the future 4 hours through a linear regression method, and calculating the prediction value of the power of the whole wind power plant by using a wind power plant power curve; simulating calculation: inputting a simulating input quantity, and predicting the wind power in the future 4 hours; error analysis: calculating the accuracy of the calculation method according to an error evaluation standard Interim Procedures for Wind Power Plant Power Predicating and Forecasting Management issued by the National Energy Administration of the People's Republic of China in 2011. The wind power real-time prediction calculation method is scientific, reasonable and practical, and has the advantage of higher accuracy, meeting of online application requirements, and the like.

Description

technical field [0001] The invention relates to the technical field of wind power, and relates to a real-time prediction and calculation method of wind power based on spatial average wind speed. Background technique [0002] With the rapid development of wind power generation and the continuous expansion of wind power installed capacity, the impact of wind farm grid connection on the power system cannot be ignored. When large-scale wind farms are connected to the grid for operation, large wind power fluctuations will have adverse effects on the power balance and frequency regulation of the grid. If the power generation of wind farms can be predicted, the power dispatching department can pre-arrange dispatching plans according to changes in wind power to ensure power balance and operational safety of the grid. Therefore, high-precision wind power prediction is an important means to realize large-scale wind power grid operation. [0003] The real-time forecast of wind power ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/38
CPCY02A30/00Y02E10/76
Inventor 杨茂贾云彭穆钢严干贵
Owner NORTHEAST DIANLI UNIVERSITY
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