柴油发电机组转速控制方法研究

详细信息    查看全文 | 推荐本文 |

英文篇名：Study on Speed Control Method of Diesel Generating Set 作者：赵梅 ; 杨敬 ; 权龙 英文作者：ZHAO Mei;YANG Jing;QUAN Long;School of Mechanical Engineering,Taiyuan University of Technology; 关键词：柴油发电机组 ; 电子调速器 ; 负载识别 ; 负载前馈 ; 转速控制 英文关键词：Diesel Generators;;Electronic Governor;;Load Identification;;Load Feedforward;;Speed Control 中文刊名：JSYZ 英文刊名：Machinery Design & Manufacture 机构：太原理工大学机械工程学院; 出版日期：2019-04-08 出版单位：机械设计与制造 年：2019 期：No.338 基金：露天煤矿大型挖掘装备高能效运行基础研究(U1510206) 语种：中文; 页：JSYZ201904037 页数：5 CN：04 ISSN：21-1140/TH 分类号：143-146+150

摘要

现有柴油机电子调速器大都是采用转速闭环控制调节供油量,其特点是在转速出现差值后进行调节,属于闭环负反馈调节。如果负载干扰已经出现,但还未检测到转速偏差△n,则调速器不工作,因此现有柴油机电子调速器的调节作用落后于负载干扰作用。由于转速波动对柴油机的不利影响,现提出柴油机电子调速器采用转速反馈、负载干扰前馈调速控制原理,即在负载已经发生,转速还未出现差值时,将负载干扰前馈到控制器,提前调节供油量,稳定柴油发电机转速。现在Matlab/simulink中对柴油发电机组带动电动机,电动机拖动负载的系统建模,对采用转速闭环控制的电子调速器与采用转速反馈、负载干扰前馈控制的电子调速器进行稳态与动态仿真对比。仿真结果表明:采用转速反馈、负载干扰前馈控制的电子调速器系统动态响应快且具有更好的动态调速性能。
        The existing diesel engine electronic governor are mostly using speed closed-loop control to adjust the fuel supply,which is characterized by the difference in the speed after the adjustment,belonging to closed loop negative feedback regulation. If the load disturbance has occurred,but has not detected the speed deviation Δn,the governor does not work,so the existing diesel engine electronic governor regulation behind the role of load interference. Due to the adverse effects of speed fluctuations on the diesel engine,which is proposed to use diesel engine electronic governor with speed feedback,load interference feedforward control. When the load torque occurs,the speed has not yet reached the difference,the load interference feed forward to the controller,adjust the fuel supply in advance,stabilize the diesel generator speed. In Matlab/simulink modeling for the system that diesel generators to drive the motor and then drag the load by the motor,the use of speed closed-loop electronic governor and the use of speed feedback,load interference feedforward electronic governor simulation comparison. The simulation results show that the electronic governor system with speed feedback and load feedforward is fast response and has better dynamic speed performance.

引文

[1]胡明江,杨铁皂,徐斌.柴油机电子调速器的研究现状及发展趋势[J].河南科技大学学报,2003,24(4).(Hu Ming-jiang,Yang Tie-zao,Xu Bin.Research status and development trend of diesel electronic governor[J].Journal of Henan University of Science and Technology,2003,24(4):44-47)
    [2]宋恩哲,刘庆伟.转速和电流双闭环在柴油机电子调速器上的应用研究[J].内燃机工程,2016,37(4):97-100.(Song En-zhe,Liu Qing-wei.Application research of electronic governor based on speed and current double closed loop for a diesel engine[J].Internal Combustion Engine Engineering,2016,37(4):97-100.)
    [3]李铁军.柴油机电控技术实用教程[M].北京:机械工业出版社,2009.(Li Tie-jun.Practical Tutorial of Diesel Engine Electronic Control Technology[M].Beijing:Machinery Industry Press,2009.)
    [4]Winterbone D E,Jai-In S.The application of modern control theroy to a turbocharged diesel engine powerplant[J].Proc Institute Mechanical Engines,1991(1).
    [5]李华德,杨立永.交流电动机矢量控制变压变频调速系统[J].变频器世界,2007(1):116-120.(Li Hua-de,Yang Li-yong.AC motor vector control variable frequency control system[J].Inverter World,2007(1):116-120.)
    [6]朱安周.船用柴油机数字式电子调速器建模与仿真[J].青岛大学学报:工程技术版,2012,27(2):53-56.(Zhu An-zhou.Modeling and simulation of digital electronic governor for marine diesel engine[J].Journal of Qingdao University:Engineering&Technology Edition,2012,27(02):53-56.)
    [7]张雪,陈宏利.涡轮增压柴油机的建模与仿真研究[J].机械设计与制造,2016(10):227-231(Li Xue,Chen Hong-li.Study on modeling and simulation of turbocharged diesel engine[J].Machinery Design&Manufacture,2016(10):227-231.)
    [8]于群,曹娜.MATLAB/Simulink电力系统建模与仿真[M].北京:机械工业出版社,2015.(Yu Qun,Cao Na.Modeling and simulation of power system using MAT-LAB/Simulink[M].Beijing:Machinery Industry Press,2015.)