摘要
为分析液压型风力发电机机组能量转化机理,针对其能量传递与耗散问题展开了研究。将整个机组分解为若干个关键子单元,建立机组能量传递模型,分析机组能量传递变化规律;以能量传递模型为基础,对机组能量耗散进行推导分析,得到机组能量耗散数学模型。将30kV·A液压型风力发电机组实验台作为仿真和实验基础,对机组能量传递与耗散进行仿真与实验研究,进而验证理论分析的准确性。研究结果表明:机组在工作过程中其能量特征状态发生改变,并存在一定的能耗,整机效率约为65.7%。
Taking a hydraulic wind turbine as the research object, the energy transfer and dissipa- tion were studied for energy conversion mechanism in hydraulic wind turbine. The entire unit was di- vided into several key sub-units. The energy transfer models were established, and the variation of energy transfer was analyzed. The energy dissipation was derived and analyzed based on energy trans- fer models, and mathematical models of energy dissipation were obtained. Using 30kVA hydraulic wind turbine simulation platform as the simulation and experimental foundation, simulation and ex- perimental researches of energy transfer and dissipation were carried out. The accuracy of theoretical analyses was verified. The results show that energy feature state is changed during operation, contai- ning a certain energy dissipation, and the overall efficiency is about 65.7%.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2015年第18期2491-2496,共6页
China Mechanical Engineering
基金
国家自然科学基金资助项目(51405423)
国家冷轧板带装备及工艺工程技术研究中心开放课题资助项目(NECSR-201305)
燕山大学青年教师自主研究计划课题资助项目(13LGB005)
关键词
风力发电
液压传动
能量传递
能量耗散
wind power
hydraulic transmission
energy transfer
energy dissipation
