波力发电液压PTO系统蓄能器特性建模与参数优化
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摘要
蓄能器是波力发电液压PTO系统中的重要元器件,合理选择和设置蓄能器参数可显著改善PTO系统的运行稳定性.针对摆式波力发电PTO系统,本文建立了囊式蓄能器-管路动力学模型,分析了影响蓄能器特性的相关参数,利用AMESim软件仿真进行了参数优化,并通过样机试验验证了理论分析和仿真结果的一致性.研究结果表明:经过参数优化的蓄能器能显著改善PTO系统的运行稳定性;其优化公称容积应略大于系统所需的最小补液体积;其优化充气压力为额定压力的90%左右;接口管路长度不宜过长;接口管路直径对系统压力响应影响微小,其设置满足流量需求即可.
Accumulator is an important component in the hydraulic power take-off(PTO)system for wave power generation.Reasonable selection and setting of the accumulatorparameters can obviously improve PTO system operation stability. A bladder-accumulator-pipeline dynamic model is established against the PTO system for pendulumwave power generation.The relevant parameters influencing accumulator characteristicare analyzed.By the simulation in AMESim,the model's parameters are optimized.The consistency of theoretical analysis and simulation results was verified by prototypemodel test.The results show that the accumulator with optimal parameters cansignificantly improve PTO system operation stability;its optimal nominal volumeslightly exceeds minimum makeup oil volume;its optimal precharge pressure isapproximately 90% of rated pressure;the length of connecting pipeline should not betoo long;the diameter of connecting pipeline has little effect on the system pressureresponse and its setting only needs to satisfy the flow demand.
Accumulator is an important component in the hydraulic power take-off(PTO)system for wave power generation.Reasonable selection and setting of the accumulatorparameters can obviously improve PTO system operation stability. A bladder-accumulator-pipeline dynamic model is established against the PTO system for pendulumwave power generation.The relevant parameters influencing accumulator characteristicare analyzed.By the simulation in AMESim,the model's parameters are optimized.The consistency of theoretical analysis and simulation results was verified by prototypemodel test.The results show that the accumulator with optimal parameters cansignificantly improve PTO system operation stability;its optimal nominal volumeslightly exceeds minimum makeup oil volume;its optimal precharge pressure isapproximately 90% of rated pressure;the length of connecting pipeline should not betoo long;the diameter of connecting pipeline has little effect on the system pressureresponse and its setting only needs to satisfy the flow demand.
引文
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[20]孔祥东,权凌霄,姚静,等.基于力学分析的蓄能器数学模型建立及实验研究[J].液压与气动,2006,(7):31-34Kong Xiangdong,Quan Lingxiao,Yao Jing,et al.Accumulator is modeled on its stressing model and experiments research[J].Chinese Hydraulics&Pneumatics,2006,(7):31-34
[21]马登成,杨士敏,陈筝,等.蓄能器对工程机械液压系统影响的仿真与试验[J].中国公路学报,2013,26(2):183-190Ma Dengcheng,Yang Shimin,Chen Zheng,et al.Simulation and experimental study on impact of accumulator on engineering machinery hydraulic system[J].China Journal of Highway and Transport,2013,26(2):183-190
[22]王纪森,王海涛,李仕辉.蓄能器在液压试验台中的参数分析与仿真[J].机床与液压,2010,38(15):89-91Wang Jisen,Wang Haitao,Li Shihui.The parameter analysis and simulation of the accumulator in hydraulic test-bed[J].Machine Tool&Hydraulics,2010,38(15):89-91
[2]王凤银,杨绍辉,何光宇,等.波浪能发电装置及其液压系统研究现状和发展前景[J].装备制造技术,2015,(3):29-31Wang Fengyin,Yang Shaohui,He Guangyu,et al.The research situation and development prospect of wave energy power generation device and its hydraulic system[J].Equipment Manufacturing Technology,2015,(3):29-31
[3]陈启卷,尚欣欣,黄向勇,等.基于液压转换的共振波力发电装置提能系统[J].电力系统自动化,2016,(5):115-120Chen Qijuan,Shang Xinxin,Huang Xiangyong,et al.Resonant wave energy power take-off system based on hydraulic transmission[J].Automation of Electric Power Systems,2016,(5):115-120
[4]陈启卷,李永兴,许志翔,等.液压传动共振波力发电装置提能系统特性研究[J].机械工程学报,2017,53(14):209-216Chen Qijuan,Li Yongxing,Xu Zhixiang,et al.Research on hydraulic power take-off system of resonant wave generation device[J].Journal of Mechanical Engineering,2017,53(14):209-216
[5]盛松伟,张亚群,王坤林,等.鹰式波浪能发电装置发电系统研究[J].可再生能源,2015,33(9):1422-1426Sheng Songwei,Zhang Yaqun,Wang Kunlin,et al.Experiment research on the power generation system of the sharp eagle wave energy converter[J].Renewable Energy Resources,2015,33(9):1422-1426
[6]Zhang Yaqun,Sheng Songwei,You Yage,et al.Research on energy conversion system of floating wave energy converter[J].China Ocean Engineering,2014,28(1):105-113
[7]姜家强,游亚戈,盛松伟,等.一种波浪能装置液压自治控制器的设计与试验[J].太阳能学报,2014,35(4):594-598Jiang Jiaqiang,You Yage,Sheng Songwei,et al.Design and test of hydraulic autonomous controller for wave energy device[J].Acta Energiae Solaris Sinica,2014,35(4):594-598
[8]张大海.浮力摆式波浪能发电装置关键技术研究[D].杭州:浙江大学,2011Zhang Dahai.Research on the key technologies of wave energy converter of inverse pendulum[D].Hang Zhou:Zhejiang University,2011
[9]鲍经纬,李伟,张大海,等.基于液压传动的蓄能稳压浮力摆式波浪能发电系统分析[J].电力系统及自动化,2012,36(14):205-209Bao Jingwei,Li Wei,Zhang Dahai,et al.Analysis of an inverse pendulum wave power generation system with pressure-maintaining storage based on hydraulic transmission[J].Automation of Electric Power Systems,2012,36(14):205-209
[10]宋文杰,史宏达,刘鹏.基于双行程液压传动的振荡浮子式波浪能发电系统仿真研究[J].太阳能学报,2016,37(1):256-260Song Wenjie,Shi Hongda,Liu Peng.Simulation of oscillating buoy wave energy generation system based on double-stroke hydraulic transmission[J].Acta Energiae Solaris Sinica,2016,37(1):256-260
[11]孔祥东,权凌霄.蓄能器的研究历史、现状和展望[J].机床与液压,2004,(10):4-6Kong Xiangdong,Quan Lingxiao.The history,current situation of accumulator’s research and its vista[J].Machine Tool&Hydraulics,2004,(10):4-6
[12]Salter S H.Wave power[J].Nature,1974,249(5459):720-724
[13]Henderson R.Design,simulation,and testing of a novel hydraulic power take-off system for the pelamis wave energy converter[J].Renewable Energy,2006,31(2):271-283
[14]Yang L,Hals J,Moan T.Analysis of dynamic effects relevant for the wear damage in hydraulic machines for wave energy conversion[J].Ocean Engineering,2010,37(13):1089-1102
[15]Die2El D,Bryans G,Verdegem L,et al.Wavepod a transmission for wave energy co nvertersset-up and testing[J].International Journal of Fluid Power,2015,16(2):75-82
[16]张亚群,盛松伟,游亚戈,等.波浪能装置液压式蓄能系统设计[J].机床与液压,2016,(5):117-121Zhang Yaqun,Sheng Songwei,You Yage,et al.Design on hydraulic energy storage system of wave energy converters[J].Machine Tool&Hydraulics,2016,(5):117-121
[17]王立国,游亚戈,盛松伟,等.鸭式波浪能发电装置中蓄能工质的选择研究[J].太阳能学报,2014,12:2525-2529Wang Liguo,You Yage,Sheng Songwei,et al.Research on storage medium in duck device for floating wave energy power generation[J].Acta Energiae Solaris Sinica,2014,12:2525-2529
[18]Yokota S,Somada H,Yamaguchi H.Study on an active accumulator:active control of high-frequency pulsation of flow rate in hydraulic systems[J].Bulletin of the Jsme,1996,39(1):119-124
[19]权凌霄,孔祥东,高英杰,等.不考虑进口特性的蓄能器吸收冲击理论及试验[J].机械工程学报,2007,43(9):28-32Quan Lingxiao,Kong Xiangdong,Gao Yingjie,et al.Theory and experiment of accumulator absorbing pressure pulsation without regard to its entrance characteristics[J].Journal of Mechanical Engineering,2007,43(9):28-32
[20]孔祥东,权凌霄,姚静,等.基于力学分析的蓄能器数学模型建立及实验研究[J].液压与气动,2006,(7):31-34Kong Xiangdong,Quan Lingxiao,Yao Jing,et al.Accumulator is modeled on its stressing model and experiments research[J].Chinese Hydraulics&Pneumatics,2006,(7):31-34
[21]马登成,杨士敏,陈筝,等.蓄能器对工程机械液压系统影响的仿真与试验[J].中国公路学报,2013,26(2):183-190Ma Dengcheng,Yang Shimin,Chen Zheng,et al.Simulation and experimental study on impact of accumulator on engineering machinery hydraulic system[J].China Journal of Highway and Transport,2013,26(2):183-190
[22]王纪森,王海涛,李仕辉.蓄能器在液压试验台中的参数分析与仿真[J].机床与液压,2010,38(15):89-91Wang Jisen,Wang Haitao,Li Shihui.The parameter analysis and simulation of the accumulator in hydraulic test-bed[J].Machine Tool&Hydraulics,2010,38(15):89-91