Performance data acquisition method and system for wind machine

Abstract

The invention discloses a performance data acquisition method and system for a wind machine. The method comprises the steps of according to parameter data of the complete wind machine, forming a basic performance curve database by integrating performance curves of a wind machine under different air densities, and acquiring a performance curve under actual air density according to the performance curves in the basic performance curve database. The performance curves in the basic performance curve database further include a power curve, a thrust coefficient curve and a power coefficient curve. The method further comprises the steps of acquiring a power curve under the actual air density according to the power curve in the basic performance curve database, and calculating the generating capacity of the wind machine in combination with the power curve through externally input wind energy data. According to the method and system, the technical problem of incapability of achieving quick response calculation and result output due to numerous dependency conditions of a conventional calculation method can be solved, so that a calculation process can be greatly simplified; and the method and system have the advantages of high calculation efficiency, high precision and data portability.

Description

technical field [0001] The invention relates to the field of wind power generation, in particular to a method and system for acquiring performance data of a wind turbine. Background technique [0002] The power curve of wind turbines is an important design basis for wind turbines, and it is also one of the key performance curves that owners are most concerned about. When a wind turbine manufacturer provides equipment to users, it generally needs to submit the power curve of the wind turbine. According to the power curve and the actual wind resources of the wind farm, the total annual power generation of the wind farm can be calculated, and the performance of the actual wind farm can be assessed to evaluate the power generation capacity and efficiency of the wind turbine. On the one hand, the performance curve and power generation of wind turbines are often indicators that users of wind turbines are very concerned about, and these indicators are usually strongly related to t...

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Problems solved by technology

[0005] In view of this, the purpose of the present invention is to provide a wind turbine performance data acquisition method and system, which can solve the technical problem that the traditional calculation method has many dependencies and cannot achieve fast response calculation and result output, greatly simplifies the calculation process, and has the ability to calculate Advantages of high efficiency, high precision, and data portability

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