风电机组多并联液冷系统计算软件开发及应用

Development and Application of a Multi Parallel Branch Liquid Cooling Ssystem for Wind Turbine

针对现有风电机组液冷热管理系统中存在诸如各部件冷却能力不匹配、各支路流量分配不合理、各部件液路接口尺寸不能满足整机热管理系统性能要求等实际工程问题,以目前大批量在役运行的某种风电整机冷却系统为例,构建了并联支路液冷系统流动与传热的计算模型,在Matlab计算平台上开发出能适应风电机组各关键部件热管理计算与校核的多并联支路液冷热管理系统计算软件,在快速、准确实现对风电机组各关键部件液冷支路进行热管理设计及校核计算的同时,能从整机热管理角度来实现各关键部件间热管理的最优匹配。该研究成果对风电机组整机热管理系统高效、经济、可靠地运行具有重要的工程应用参考价值。

In view of the actual engineering problems such as the mismatch of cooling capacity of each component,the unreasonable distribution of flow of each branch,and the size of the liquid interface of each component cannot meet the performance requirements of the thermal management system of the whole machine,taking a certain wind turbine cooling system in operation in large quantities as example,the calculation model of flow and heat transfer in a parallel branch liquid cooling system was constructed.On the Matlab computing platform,the calculation software for the multi-parallel branch liquid cooling and thermal management system that can be adapted to the thermal management calculation and verification of the key components of the wind turbine was developed.While quickly and accurately implementing thermal management design and calibration calculation for the liquid-cooled branch of each key component of the wind turbine,the optimal management of thermal management between key components can be achieved from the perspective of thermal management of the whole machine.The research results have important engineering application reference value for the efficient,economical and reliable operation of the wind turbine thermal management system.