周文杰，程江华，石磊，邢卫东，邓康耀.柴油机相继增压切换过程阀门耦合控制研究[J].内燃机工程,2020,41(5):70-76.
柴油机相继增压切换过程阀门耦合控制研究
Research on Valves Coupling Control in Diesel Engine Sequential Supercharging Switching Process
DOI：10.13949/j.cnki.nrjgc.2020.05.010
关键词:柴油机  相继增压  瞬态仿真  控制策略
Key Words:diesel engine  sequential supercharging  transient simulation  control strategy
基金项目:基础产品创新计划科研项目（2018-028）
作者单位
周文杰，程江华，石磊，邢卫东，邓康耀 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.中国北方发动机研究所，天津 300400 
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摘要:为解决相继增压系统切换过程中压气机喘振和倒流问题，建立了GT Power/Simulink 相继增压系统耦合仿真计算模型，并对切换过程压气机动作延迟时间的影响规律进行研究。仿真结果表明：压气机延迟关闭可以避免压气机的喘振现象；压气机延迟开启可以避免压气机的倒流现象。合理的阀门控制策略可以使切换过程增压压力的波动减少9.3%~21.6%。
Abstract:In order to solve the problems of compressor surge and backflow during the switching process of the sequential supercharging system of a diesel engine, a coupled GT Power/Simulink sequential supercharging system simulation model was established and the influence was studied of delayed compressor action during the switching process on the compressor surge and backflow. The simulation results showed that the delayed shutdown of any compressor could avoid the compressor surge, and the delayed startup of any compressor could avoid the reverse flow. Through an appropriate valves coupling control strategy, the fluctuation of boost pressure during the switching process could be reduced by 9.3%~21.6%.
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