第39卷(2017)第3期性能与排放
柴油机 Diesel Engine
Vol.39(2017) No.3
高海拨可调两级增压柴油机油气协同控制研究
张立夫"2，刘胜，张慧奠"2，石磊"2，邓康耀"2，杨震寰
（1.上海交通大学动力机械及工程教育部重点实验室，上海200240；2.高新船舶与深海开发装备协同
创新中心，上海200240；3.中国北方发动机研究所，天津300400）
摘要：以某V型6缸柴油机为研究对象，采用GT-Power软件开展高海拨可调两级涡轮增压柴油机油气协同控制研究。仿真模型的进气模块选用可调两级涡轮增压系统，燃烧模块的标定采用柴油机在低过量空气系数下的试验数据进行。采用该标定后的仿真模型开展了不同过量空气系数和喷油量工况下柴油机高原性能仿真计算。结果表明：在海拨4500m，且满足最高燃烧压力和排温限制的条件下，采用可调两级增压并结合油气协同控制，柴油机扭矩和功率可达到100%恢复；研
究同时获得了最大扭矩和最大功率恢复的油气协同控制方法。关键词：高海拨；可调两级涡轮增压；油气协同；担矩；功率
中图分类号：TK421*.8
文献标识码：A
文章编号：10014357(2017)03000104
Study on Fuel-Air Synergistic Control of Regulable Two-Stage Turbocharged
Diesel Engine Working at High Altitude
Zhang Lifu'.2, Liu Sheng", Zhang Huiyan'.2, Shi Lei'.2, Deng Kangyao'-2, Yang Zhenhuan
(1. Key Laboratory for Power Machinery & Engineering of Ministry of Education, Shanghai Jiaotong University, Shanghai 200240; 2. Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration ( CISSE),
Shanghai 200240 ; 3. China North Engine Research Institute, Tianjin 300400)
Abstract : Based on a V type 6-cylinder diesel engine , GT-Power software was used to study the synergis-tic control of regulable two-stage turbocharged diesel engines working at high altitude. The two-stage tur-bocharging system was adopted in the simulation model as inlet module. The combustion module was cali-brated by the experimental data of the diesel engine at low excess air ratio. After the simulation model was verified by experimental data, the simulation of the plateau performance of the diesel engine under different excess air coefficients and fuel injection conditions was carried out. Under the conditions of sa-tisfying maximum combustion pressure and temperature limit, the results show that with the use of regula-ble two-stage turbocharging technology combining with fuel-air synergy control, the diesel engine can achieve 100% torque recovery and power recovery at altitude of 4 500 m, and obtain the fuel-air syner-gistic control method of maximum torque and maximum power recovery.
Key words : high altitude; reguable two-stage turbocharging; fuel-air synergy; torque; power
0引言
我国国土辽阔，高原分布广泛，高原气候条件会对柴油机的正常运行产生影响[2-3]。随着海拔高
度的增加，环境中的大气压力、密度以及空气含氧量都下降。对于运行在高原地区的柴油机来说，一方面，高原较低的大气压力使得柴油机进气量不足，导致柴油机运行在低过量空气系数工况下，缸
收稿日期：2016-11-01：
作者简介：张立夫（1991-），男，硕土在读，主要研究方向为发动机可调两级涡轮增压技术，E-mail：superreef@163.com。