Large wind turbines optimization control system with layered hierarchical structure

A wind turbine, hierarchical and hierarchical technology, applied in the field of unified coordination and optimization control, can solve the problems of insufficient utilization of hardware resources, low functional coordination, and low utilization of information resources.

Inactive Publication Date: 2009-08-05
BEIJING NEGO AUTOMATION TECH
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Problems solved by technology

[0003] In view of the deficiencies in the current prior art, the purpose of the present invention is to provide a large-scale wind turbine optimization control system with hierarchical structure, which solves the prob

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  • Large wind turbines optimization control system with layered hierarchical structure

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Embodiment Construction

[0012] When the wind farm decides to start generating power 1, first the "short-term wind energy forecasting unit" in the "wind farm-level data analysis and strategy formulation unit" gives the reference value of the current maximum power generation of the wind farm 2, when the power grid requests to start During power generation 3, the “field-level control strategy unit” decomposes the tasks into reference values ​​5 of the amount of power generation that each wind turbine should generate according to the actual situation of each unit. When the "unit-level coordinated control and fault diagnosis unit" receives the reference value of the power generation of the unit, if the unit meets the start-up condition 6, the "optimized coordination control unit" determines the action requirements of the actuators of each circuit of the unit based on this value (mainly including pitch angle, yaw angle, oil system working status, converter working status, safety system working status), and ...

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Abstract

The invention discloses a large-scale wind turbine optimal control system provided with a multi-level hierarchical structure, which comprises a data analysis and strategy selection unit on a wind power field grade, wherein, the unit is in charge of processing the function of large information amount demand and complex calculation task, and meanwhile, coordinates the coordination between each wind turbine, leading the whole efficacy of the wind power field to be the best; a coordinating control and fault diagnosis unit on a turbine grade, which is in charge of handling various transaction in the turbine, and meanwhile, coordinates the coordination between each loop in the turbine, leading the whole efficacy of the turbine to be the best and to reasonably and efficiently complete a task assigned to the wind turbine by the data analysis and strategy selection unit on the wind power field grade; and an execution mechanism control unit on a loop grade, which makes specific action request for each loop and guarantees the accurate and exact operation of various execution mechanisms, such as a motor, a pump, a valve, a switch, and the like. The system solves the problem of inadequacy hardware resource utilization, lower information resource utilization ratio, and low coordination degree between each function in a large-scale wind turbine control system.

Description

technical field [0001] The invention relates to a control method for a large-scale wind generating set, in particular to a top-down unified coordinated optimization control method for a plurality of wind generating sets inside a wind farm. technical background [0002] In recent years, with the gradual increase of wind power scale and stand-alone capacity, large-scale wind turbines need to control more and more content, control programs have become more and more complex, and the amount of data that needs to be transmitted and processed has doubled: for example In order to make a typical megawatt-class large-scale wind turbine operate efficiently, reliably and stably, it often needs to involve pitch control, yaw control, oil control, converter control, start-stop control, safety protection control , fault diagnosis, unit monitoring, power grid monitoring, operation strategy formulation, wind energy forecasting, maintenance and emergency rescue and other issues. The various f...

Claims

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Application Information

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IPC IPC(8): G05B19/418F03D7/00G05B19/048
CPCY02E10/723Y02E10/72
Inventor 贾利民雷涛刘远远刘展王子洋秦勇
Owner BEIJING NEGO AUTOMATION TECH
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