摘要
由于船舶的特殊运行环境,柴油机模型要求能够准确反映运行过程中各主要参数的动态变化。平均值模型融合了准静态模型和容积法模型的优点,得到广泛应用,但以往的研究忽略了扫气系数的影响。在引入扫气系数对空燃比影响的基础上,采用随空燃比变化的废气气体参数,建立了大型低速二冲程柴油机的平均值模型。以6S60MC型船用柴油机为母型机进行了仿真,结果显示,模型具有较好的准确性及动态特性。目前此模型已作为一部分应用于船舶主推进动力装置的仿真。
Modeling of large marine diesel engine should exactly reflect the dynamic process of main parameters in the running period of diesel engine because of ship＇s particular operating conditions. Mean value model, which integrates advantages of the quasi-steady model and filling and emptying model, has been extensively used, but it neglects the scavenging efficiency. A dynamic mean value model was established on the basis of carefully considering air-fuel ratio deeply affected by the scavenging efficiency. Varying exhaust gas parameters was also considered. The 6S60MC diesel engine made by MAN B＆W Company being taken as an example, system simulation studies were conducted to demonstrate the correctness and the efficient of the model for marine diesel engine. Simulation results show that the built model has better precision and dynamic characteristics. As a part, the model has been used for simulation of marine diesel engine power plant.
出处
《系统仿真学报》
EI
CAS
CSCD
北大核心
2006年第9期2638-2641,2675,共5页
Journal of System Simulation
基金
高等学校博士学科点专项科研基金(20030151005)
关键词
船用柴油机
建模
动态仿真
扫气系数
空燃比
marine diesel engine
modeling
dynamic simulation
scavenging efficiency
air-fuel ratio
作者简介
王海燕（1976-），男，河北平山人，博士生，研究方向为轮机自动化与控制；
张均东（1967-），男，浙江人，教授，博导，研究方向为轮机自动化与控制；
任光（1952-），男，辽宁人，教授，博导，研究方向为智能控制。
