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System and method for optimal arrangement of wind turbines in a decentralized wind farm

A decentralized, wind farm technology, applied in wind power generation, single-grid parallel feeding arrangement, etc., can solve the problem of not well reflecting the effect of upstream fan wake, not taking into account well, etc.

Active Publication Date: 2017-06-16
NORTHEASTERN UNIV LIAONING
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Problems solved by technology

The wake model mostly adopts the JENSEN straw hat linear wake model, and its wake loss wind speed model is a top hat shape, which does not take into account the influence of turbulence well, and cannot well reflect the wake influence of the upstream fan on the downstream fan.

Method used

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  • System and method for optimal arrangement of wind turbines in a decentralized wind farm
  • System and method for optimal arrangement of wind turbines in a decentralized wind farm
  • System and method for optimal arrangement of wind turbines in a decentralized wind farm

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Embodiment Construction

[0098] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0099] The distributed wind farm fan optimization layout system in this embodiment, such as figure 1 As shown, it includes: data acquisition module: used to obtain wind speed data and wind direction data at any two different heights of the wind measuring tower in the area of ​​the proposed decentralized wind farm, and transmit the obtained data to the DSP controller; terrain Map data acquisition module: used to obtain the contour map and elevation data of the proposed decentralized wind farm area according to SRTM data or GDEM data, and transmit the contour map and elevation data to the DSP controller; the DSP controller: (1) Receive and store the electrical quantity information data of the proposed decentralized wind farm connected to the distribution network from the D5000 system, and at the same time send the electrical quantity in...

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Abstract

A system and method for optimal arrangement of wind turbines in a distributed wind farm, belonging to the technical field of distributed wind power generation planning. The system includes a data acquisition module, a topographic map data acquisition module, a DSP controller, a power flow calculation module, a maximum access capacity analysis module, a wind turbine optimization layout calculation module and a graphic display module. The method includes: determining the area where the decentralized wind farm is to be built, the location, capacity and number of wind turbines where the decentralized wind farm is to be connected to the distribution network; setting up at least one wind measurement tower in the area where the decentralized wind farm is to be built, and calculating the wind measurement tower. The wind shear coefficient and wind profile function of the wind tower are then calculated to calculate the wake loss, obtain the actual wind speed, and finally calculate the Weibull distribution function; establish constraints and objective functions for the optimal layout of wind turbines; use the taboo invasive weed algorithm to optimize the placement of wind turbines , obtain the wind turbine layout optimization plan; fine-tune the machine positions, and display the final topographic map of the proposed distributed wind farm area where the wind turbines are arranged.

Description

[0001] Technical field [0002] The invention belongs to the technical field of distributed wind power generation planning, and in particular relates to a system and method for optimizing the layout of wind turbines in a distributed wind farm. Background technique [0003] The large-scale centralized development of wind power has brought problems of consumption, wind curtailment, and power rationing. Distributed wind power is not aimed at large-scale long-distance transmission, and the generated power is connected to the grid nearby and consumed locally, which can reduce the cost of power transmission and distribution expansion, improve the local reliability of the grid, and improve the grid voltage, etc. advantage. However, due to the randomness and volatility of wind energy resources, the complexity of the topography of the wind farm area, the wake effect and the change of turbulence intensity, and the limitation of access to substations, the complexity of the layout of dis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/38
CPCY02E10/76
Inventor 张化光杨珺孙秋野汪刚张瑞孙守道刘鑫蕊杨东升
Owner NORTHEASTERN UNIV LIAONING
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