柴油发电机变转动惯量飞轮的仿真
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摘要
为了提高柴油发电机受负荷冲击时的稳定性能,设计一种转动惯量可变的飞轮,通过增大柴油发电机的转动惯量来提高其转速稳定性。利用飞轮旋转产生的离心力使飞轮质量块产生位移,质量块位置的变化改变了飞轮的转动惯量,使得飞轮的转动惯量随转速而变化。对该变转动惯量飞轮进行建模和仿真,仿真结果表明:该变转动惯量飞轮使柴油发电机在低转速时具有良好的速度响应性能,在额定转速时具有更好的抗负荷扰动性能。该变转动惯量飞轮有效地提高了柴油发电机的供电质量,与固定转动惯量的柴油发电机相比,安装了变转动惯量飞轮的柴油发电机启动时的转速超调量较小,并且具有更好的转速稳定性能。
In order to improve the stability of diesel generator to against load impact,this paper proposes a flywheel with variable inertia,which increases the speed stability of the diesel generator by increasing its moment of inertia.The position of mass block changed by the centrifugal force generated by the rotation of flywheel,and the change of the mass block position lead to the inertia of the flywheel changes,so that the inertia of the flywheel changes with the rotational speed.The variable inertia flywheel is modeled and simulated.The result shows that the variable inertia flywheel makes the diesel generator get fast speed response at low speed and better load disturbance resistance at rated speed.The variable inertia flywheel effectively improves the power quality of diesel generator.Compared with fixed inertia diesel generator,the diesel generator equipped with variable inertia flywheel has a reduced speed overshoot during startup and better resistance to load disturbance at rated speed.
In order to improve the stability of diesel generator to against load impact,this paper proposes a flywheel with variable inertia,which increases the speed stability of the diesel generator by increasing its moment of inertia.The position of mass block changed by the centrifugal force generated by the rotation of flywheel,and the change of the mass block position lead to the inertia of the flywheel changes,so that the inertia of the flywheel changes with the rotational speed.The variable inertia flywheel is modeled and simulated.The result shows that the variable inertia flywheel makes the diesel generator get fast speed response at low speed and better load disturbance resistance at rated speed.The variable inertia flywheel effectively improves the power quality of diesel generator.Compared with fixed inertia diesel generator,the diesel generator equipped with variable inertia flywheel has a reduced speed overshoot during startup and better resistance to load disturbance at rated speed.
引文
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[17]黄曼磊.H∞控制理论在船舶电站中的应用研究[D].哈尔滨:哈尔滨工程大学,2003.
[18]杨峰.变速柴油发电机组转速控制策略和性能优化研究[D].上海:上海船用柴油机研究所,2017.
[19]蒋小盼.柴油主机数学模型及转速控制系统仿真研究[J].舰船科学技术,2018(2):86-88.
[2]卫国岗,孙世宇,刘金宁.柴油发电机组运行冲击性负载检测研究[J].计算机仿真,2018,35(4):399-403.
[3]吴骏,庞宇,赵凡琪.脉冲性负荷柴油发电机组特性研究[J].中国舰船研究,2008(2):50-56.DOI:10.19693/j.issn.1673-3185.01108.
[4]邢广笑,曾凡明,袁利国.涡轮增压柴油机在脉冲负载下的瞬态特性仿真与试验研究[J].船海工程,2010,39(2):89-92.
[5]YANG S,XU T,LI C,et al.Design,modeling and testing of a two-terminal mass device with a variable inertia flywheel[J].Journal of Mechanical Design,2016,138(9).
[6]S.M M G,FARAJI F,MAJAZI A,et al.A comprehensive review of flywheel energystorage system technology[J].Renewable & Sustainable Energy Reviews,2017,67:477-490.
[7]HAN Y,REN Z,TONG Y.General design method of flywheel rotor for energy storage system[J].Energy Procedia,2012,16(16):359-364.
[8]BAI J G,ZHANG X Z,WANG L M.A flywheel energy storage system with active magnetic bearings[J].Energy Procedia,2012,16:1124-1128.
[9]贾英宏,徐世杰.采用变惯量飞轮的航天器自适应姿态控制[J].宇航学报,2008,29(3):838-843.
[10]廖小兵,安震东.关于大容量高速立式电机加装大转动惯量飞轮的设计研究[J].电机与控制应用,2018(4):90-93.
[11]汤跃,成军,汤玲迪,等.不同转动惯量叶轮对泵开机瞬态特性的影响[J].流体机械,2013,41(8):6-11.
[12]李敬,柯广云,吕云嵩.转盘式变惯量飞轮的力矩平衡研究[J].机械设计与制造,2015(12):35-37.
[13]张春萍,张磊,张路军.变转动惯量飞轮:201588906 U[P].2010-09-22.
[14]于智清,刘鹏.可变转动惯量轮轴:107035815A U[P].2017-08-11.
[15]成大先.机械设计手册[M].5版.北京市:化学工业出版社,2010.
[16]赵小辉,张明柱,白东洋,等.柴油发动机特性曲线分析与建模[J].中国农机化学报,2016,37(7):112-115.
[17]黄曼磊.H∞控制理论在船舶电站中的应用研究[D].哈尔滨:哈尔滨工程大学,2003.
[18]杨峰.变速柴油发电机组转速控制策略和性能优化研究[D].上海:上海船用柴油机研究所,2017.
[19]蒋小盼.柴油主机数学模型及转速控制系统仿真研究[J].舰船科学技术,2018(2):86-88.