风力发电机组机舱温度场均匀性控制研究及应用  

Research and application of nacelle temperature field uniformity control of wind turbine generator system

作　　者：马铁强[1] 孙德滨[1] 苏阳阳[2] 王士荣[3] 

机构地区：[1]沈阳工业大学机械工程学院,辽宁沈阳110870 [2]沈阳工业大学电气工程学院,辽宁沈阳110870 [3]沈阳工业大学风能技术研究所,辽宁沈阳110023

出　　处：《重型机械》2017年第5期20-25,共6页Heavy Machinery

基　　金：国家自然科学基金重点项目(51537007);国家自然科学基金项目(51207095);辽宁省科技创新重大专项(201303005)

摘　　要：为解决风力发电机组机舱内部温度场分布不均匀导致机舱内部主要热源(如发电机、齿轮箱等)因超温报警停机问题,选取传统的"下送尾排"式风力发电机组为研究对象,引入基于热源扰动的温度场均匀性评价指标,通过正交试验优化设计,使该指标达到极小,分析了外界环境温度、风速、送风口尺寸大小、排风口尺寸大小等影响因子对风力发电机组机舱内部温度场均匀性的影响,从而在原有温度定值控制基础上,机舱内局部差异减小,提高换热效率;最后通过温度优化控制系统既能实现热源部件的最佳工作温度,又能保障机舱内部温度场分布的均匀性。Inside the nacelle of wind turbine generator system,it existed the problems of alarm and shutdown with over-temperature of the main heat sources（such as the generator,gearbox,etc.） caused by the temperature field distribution non-uniformity.This paper took the traditional structure of ＂bottom to tail＂ as the object of research.The temperature field uniformity evaluation index based on heat source perturbation was introduced and the index reached the minimum with the orthogonal test.The temperature field distribution uniformity influenced by the factors of environment temperature,wind speed,outlet size and inlet size was analyzed.The local difference inside the nacelle was reduced and the heat transfer efficiency was improved.Finally,both the optimum operating temperature of the heat source parts and the temperature field distribution uniformity were realized by the temperature optimal control system.

关 键 词：风力发电机组 热源扰动 正交试验 温度场均匀性 温度优化控制系统 

分 类 号：TM315[电气工程—电机]