液压型落地式风力发电机组长管路特性研究
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摘要
以液压型风力发电机组落地式机型为研究对象,针对长管路管道效应带来的机组特性变化展开研究.考虑管道效应,分别基于等效容腔法、集中参数法或分段集中参数法以及线性摩擦理论方法建立长管路数学模型,通过理论与仿真分析对比,区别各建模方法的使用范围,以增加长管路数学模型的液压型风力发电机组模型为基础,研究系统并网前转速传递波动的影响因素.研究结果表明:以线性摩擦理论对管路建模更加精准;管长是影响转速传递波动最明显的因素,管长一定时,可改变管径等主要参数以避开波动频率.
For hydraulic type floor-wind turbine with long transmission pipeline,characteristics changes from long pipeline were studied.Mathematical models of long pipeline were compared respectively based on equivalent volume,lumped parameter method,piecewise lumped parameter method and linear friction theory,to distinguish the range of the modeling method.Basing on the hydraulic type wind turbine model with long pipeline,the influence factors were studied for speed transmission wave before interconnection.The study results show that the pipeline model with linear friction theory is more accurate,the length of the pipeline is the most obvious factors to impact speed transmission wave and by changing main parameters such as pipe diameter fluctuation frequency can be avoided when the length is certain.
For hydraulic type floor-wind turbine with long transmission pipeline,characteristics changes from long pipeline were studied.Mathematical models of long pipeline were compared respectively based on equivalent volume,lumped parameter method,piecewise lumped parameter method and linear friction theory,to distinguish the range of the modeling method.Basing on the hydraulic type wind turbine model with long pipeline,the influence factors were studied for speed transmission wave before interconnection.The study results show that the pipeline model with linear friction theory is more accurate,the length of the pipeline is the most obvious factors to impact speed transmission wave and by changing main parameters such as pipe diameter fluctuation frequency can be avoided when the length is certain.
引文
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[2]Jarquin L A,Diepeveen N F B.Dynamic analysis of fluid power drive-trains for variable speed wind turbines:aparameter study[C]∥EWEA 2013Conference Proceedings.Vienna:EWEA,2013:1-5.
[3]Dong Chunfang,Zhu Yujie,Lu Juan.Modeling and dynamic behavior analysis of a hydraulic servo system with consideration of pipeline effect[C]∥ICLEM2010:Logistics for Sustained Economic Development.Cheng Du:ICLEM,2010:3153-3160.
[4]孟有平,刘强,王逢全,等.带蓄能器的长管道高频响阀控系统的动态特性研究[J].机床与液压,2013,41(23):138-140.
[5]璩金超,王旭永,代勇,等.无磁液压马达伺服系统的长管道效应[J].上海交通大学学报,2012,26(2):184-188.
[6]邓梁,高顺德,曹旭阳,等.带长管道的比例阀控系统的动态特性研究[J].建筑机械,2012:126-130.
[7]Nedi C N L,Dubonji C V,Filipovi C.Design of constant gain controllers for the hydraulic control system with a long transmission line[J].Forsch Ingenieurwes,2011,75:231-242.
[8]艾超,孔祥东,陈文婷,等.液压型风力发电机组主传动系统稳速控制研究[J].太阳能学报,2014,35(9):1757-1763.
[9]蔡毅刚.流体传输管道动力学[M].杭州:浙江大学出版社,1989:16-19.
[10]孔祥东,艾超,王静.液压型风力发电机组主传动控制系统综述[J].液压与气动,2013(1):1-6.
[11]孔祥东,艾超,闫桂山,等.液压型风力发电机组低电压穿越控制方法研究[J].中国机械工程,2014,25(16):2137-2142.
[2]Jarquin L A,Diepeveen N F B.Dynamic analysis of fluid power drive-trains for variable speed wind turbines:aparameter study[C]∥EWEA 2013Conference Proceedings.Vienna:EWEA,2013:1-5.
[3]Dong Chunfang,Zhu Yujie,Lu Juan.Modeling and dynamic behavior analysis of a hydraulic servo system with consideration of pipeline effect[C]∥ICLEM2010:Logistics for Sustained Economic Development.Cheng Du:ICLEM,2010:3153-3160.
[4]孟有平,刘强,王逢全,等.带蓄能器的长管道高频响阀控系统的动态特性研究[J].机床与液压,2013,41(23):138-140.
[5]璩金超,王旭永,代勇,等.无磁液压马达伺服系统的长管道效应[J].上海交通大学学报,2012,26(2):184-188.
[6]邓梁,高顺德,曹旭阳,等.带长管道的比例阀控系统的动态特性研究[J].建筑机械,2012:126-130.
[7]Nedi C N L,Dubonji C V,Filipovi C.Design of constant gain controllers for the hydraulic control system with a long transmission line[J].Forsch Ingenieurwes,2011,75:231-242.
[8]艾超,孔祥东,陈文婷,等.液压型风力发电机组主传动系统稳速控制研究[J].太阳能学报,2014,35(9):1757-1763.
[9]蔡毅刚.流体传输管道动力学[M].杭州:浙江大学出版社,1989:16-19.
[10]孔祥东,艾超,王静.液压型风力发电机组主传动控制系统综述[J].液压与气动,2013(1):1-6.
[11]孔祥东,艾超,闫桂山,等.液压型风力发电机组低电压穿越控制方法研究[J].中国机械工程,2014,25(16):2137-2142.