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Limit load control method based on energy storage wind turbine generator, medium and equipment

A technology of extreme load and wind turbines, applied in the control of wind turbines, mechanical equipment, engine control, etc., can solve the problems of wasting power generation performance and wind resources, and excessive limit loads, so as to improve the overall power generation and make full use of wind resources Effect

Active Publication Date: 2021-08-10
HUANENG CLEAN ENERGY RES INST
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Problems solved by technology

[0006] In order to solve the problems existing in the prior art, the present invention provides a method, medium and equipment for controlling the limit load of wind turbines based on energy storage, so as to solve the problem that the current limit load is too large and the selection of the unit is limited, which leads to the waste of power generation performance and wind resources.

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  • Limit load control method based on energy storage wind turbine generator, medium and equipment

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Embodiment 1

[0050] Step 1: Taking a wind farm in a super-class wind area with obvious "bimodal distribution" characteristics in a certain area of ​​Xinjiang as an example, the 10-min average limit wind speed once in 50 years is 52.1m / s, and the 3s average value is 78m / s. The 10-minute average of the limit wind speed once encountered is 41.6m / s

[0051] Step 2: Refer to the GL standard to perform simulation calculations on the DLC6.2 working condition, that is, the limit wind speed once in 50 years and the grid power failure. The simulation step size of the wind direction deviation is 10°, and each step size corresponds to 6 wind seeds. θ corresponding to the minimum ultimate load of the component i1小 = 0°;

[0052] Based on step 2, carry out load simulation for all wind speeds Vi of the wind farm that are greater than the once-in-a-year limit wind speed and less than the once-in-50-year limit wind speed, V i Wind speed step length = 2m / s, find out each wind speed V i θ corresponding to...

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Abstract

The invention discloses a limit load control method based on an energy storage wind turbine generator, a medium and equipment. The method comprises the following steps: calculating each wind speed Vi between the limit wind speed of a target wind power plant once encountering one year and the limit wind speed of a target wind power plant once encountering 50 years, and superposing the limit load of the whole unit and a yaw angle theta i of the head of the whole unit under the condition of power failure of a power grid to obtain a yaw angle theta i1 of the machine head corresponding to the minimum limit load under each wind speed Vi of the whole unit; issuing the corresponding relation between Vi and theta i1 to a master control mode or a booster station storm wind fault control mode of each machine position; and when the wind speed of the target wind power plant is predicted to reach Vi and the power grid loses power, adopting each stand-by power supply of the target wind power plant, wherein the included angle between the head direction and the wind direction is theta i1. By means of the control method, larger blades can be selected, the overall generating capacity of the unit is improved, and wind resources are fully utilized.

Description

technical field [0001] The invention belongs to the technical field of wind power generation, in particular to a method, medium and equipment for controlling the ultimate load of a wind turbine based on energy storage. Background technique [0002] With the advent of the era of wind power parity, technological innovation and quality improvement of wind turbines have become the primary issues that need to be faced in the development of wind energy utilization technology. How to reduce the cost of wind turbines through technological innovation is an important issue faced by the wind power field. [0003] The load of wind turbines is the fundamental factor affecting the cost and efficiency of the entire wind power generation system, and the load and the generating performance of the unit are strongly related to the safety of the unit. Reducing the load of the unit is an important means to improve the power generation performance of the unit, improve quality and efficiency, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D7/04F03D7/00F03D17/00G06F30/20
CPCF03D7/0204F03D7/0268F03D7/043F03D7/048F03D7/00F03D17/00G06F30/20F05B2270/32F05B2270/329Y02A30/00
Inventor 张林伟蔡安民林伟荣
Owner HUANENG CLEAN ENERGY RES INST
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