Thermal analysis method and device of wind turbine based on simscape platform

Abstract

The invention provides a thermal analysis method and device of a wind power generating set based on a simscape platform. The method includes: obtaining the heat source, heat dissipation mode and distribution of ventilation and cooling equipment of each component in the wind generating set; and according to each component in the wind generating set Analyze the heat transfer of wind turbines according to the heat source, heat dissipation method and distribution of ventilation and cooling equipment, and obtain the heat transfer path, heat transfer direction and heat transfer method of the wind turbine generator set; according to the heat transfer path, heat transfer direction and heat transfer method and Based on the simscape software platform, a thermal analysis model for heat transfer analysis of wind turbines is established; the thermal analysis model is used to conduct thermal analysis of the wind turbines to be tested. The simscape-based thermal analysis method and device for wind power generators provided by the present invention effectively overcome the problems of long CFD calculation time, large amount of required storage data, and inability to perform rapid evaluation and prediction in the prior art. Reduced labor costs and time costs.

Description

technical field [0001] The embodiment of the present invention relates to the technical field of wind power, in particular to a thermal analysis method and device for a wind power generating set based on a simscape platform. Background technique [0002] For the thermal analysis of fans, CFD simulation analysis and theoretical calculation analysis methods are often used in the prior art. Generally, CFD computational fluid dynamics can be divided into four stages: CAD / CAE model, grid division, Calculation, solution and post-processing; specifically, pre-processing of CAD / CAE mode: generally speaking, the physical model of calculation is relatively complex, which needs to be simplified and cleaned; grid division: divide the grid to perform discrete calculation and solution of the calculation domain: grid generation After that, it is read into the computational fluid dynamics software used, and the remaining task is to use the solver to perform calculations. These include the ...

AI Technical Summary

Problems solved by technology

[0003] However, when implementing the technical solution, the inventors found that there are following defects in the prior art: CFD needs to spend a lot of time, manpower pre-processing and grid division; the calculation of CFD requires a complete geometric model; the calculation time of CFD It is long and needs to store a large amount of data, which cannot be quickly evaluated and predicted; and when performing instantaneous calculations, it is more difficult and more demanding; CFD is an algebraic equation generated after solving partial differential equations on the computational domain; theoretical calculations Simplifies too many input conditions; therefore, the error is large, and it is difficult to perform transient thermal simulation calculations for fans, thereby reducing the accuracy and reliability of the calculations

Images