Wind power plant active output and unit fatigue comprehensive optimization control method

Abstract

The invention discloses a wind power plant active output and unit fatigue comprehensive optimization control method. Wind turbine components under the active adjustment mode are subjected to DEL datamodeling, and complex terrain wind power plant optimization control is carried out based on a DEL data model; and the control strategy is a composite control strategy combining active optimizing intelligent distribution based on wind regime characteristic predicting and active auxiliary adjustment. Therefore, on one aspect, the wind power plant active adjustment and unit fatigue comprehensive optimization control method effectively reduces the production, manufacturing and maintaining cost of wind power generation equipment, and the problem about new energy power generation distributed grid connection utilization with the wind power generation equipment as a main body is solved; and on the other aspect, the wind power plant active adjustment and unit fatigue comprehensive optimization control method is suitable for a complex terrain wind power plant with the small wake flow effect.

Description

technical field [0001] The invention relates to the technical field of wind farms, in particular to a comprehensive optimization control method for active power output of wind farms and unit fatigue suitable for complex local wind farms with small wake effects. Background technique [0002] In my country, as the development of ideal wind farm resources is gradually exhausted, the development of onshore wind power has shifted to complex terrain wind farms with low wind speed and high turbulence. According to statistics, the area of ​​low wind speed resources available nationwide accounts for 68% of the country's wind energy resource areas; most of these low wind speed areas are complex terrain, and are close to the receiving end of the grid load. Compared with the regular layout of wind turbines in simple terrain wind farms, the layout of wind farms in complex terrains has significant differences. For wind farms with complex terrain, it is difficult to adjust the active powe...

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Problems solved by technology

However, while the above method solves the problem of active power regulation, it brings new problems: the allocation strategy that only considers the active power demand leads to severe uneven fatigue distribution among wind farm units in complex terrain, and the units with high average wind speed and turbulence intensity Component fatigue loads are much greater than other units, ultimately shortening service life

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