论文标题:船舶电力推进系统中负载仿真装置的研究
Study of Simulating Apparatus of Load in Marine Electric Propulsion System
论文作者 刘洪涛
论文导师 王天序,论文学位 硕士,论文专业 电力电子与电力传动
论文单位 大连海事大学,点击次数 417,论文页数 57页File Size2414k
2005-03-01论文网 http://www.lw23.com/lunwen_358222/ 船舶电力推进;有源逆变;直流双闭环调速系统;相控式功率变换器
Marine electric propulsion ; Active-inverter ; DC double closed loops speed-adjusting system ; Phase controlled power converter
由于电力推进技术发展前景的日益广阔及相关领域技术的不断完善,作为高等航海学府,建设船舶电力推进实验室才能突显与时俱进的意义。本文就是以电力推进船的推进电机和推进系统作为考核对象,在直流双闭环调速系统和有源逆变的基础上开发了一套基于DSP的螺旋桨负载仿真装置,从而提供给推进电机逼真的轴负载,准确仿真船舶定常航行和非定常航行时的螺旋桨工作特性。 本文首先分析了船用螺旋桨的工作特性以及与船体的相互作用;其次根据其特性制定了仿真装置的设计方案,并根据电力推进实验室的要求对仿真装置的主要部件进行了选择:然后建立了仿真系统的数学模型并对其进行工程设计及分析;最后详细介绍了仿真装置的DSP控制系统与主回路系统,并针对各部分的具体要求提供了相应的解决方案。 本文通过对基于DSP的螺旋桨负载仿真装置的研究,提出并探讨了一种用于电力推进实验室的螺旋桨负载的仿真方案,该方案通过将DSP技术与直流调速技术以及有源逆变理论相结合,在调制式功率变换器蓬勃发展的大环境下采用相控式功率变换器从而为电气传动技术的数字化作出了有益的尝试。
As the prospect of the electrical propelling and the great progress of the relevant technologies, we need build a laboratory about marine electric propulsion to grow with each passing hour. This paper develops a kind of simulating apparatus of propeller load on the basis of DC double closed loops speed-adjusting system and active-inverter. The apparatus is the key part of the simulation system of the Marine electric propulsion Lab, which is a subproject of the university"s "211 Projects". It can provide verisimilar shift load for propulsive motor, and simulate the stable and dynamic property of the marine propeller that works under different conditions well and truly.Firstly this paper introduces the character of propeller and the effect between propeller and ship. Secondly provides a design of this simulating apparatus and selects some important parts according to the request of lab. Thirdly develops the simulating system"s mathematical model to make engineering design and analysis. Finally this paper discusses the apparatus" control system and main circuit system and provides relevant means to fulfill the request of the different systems.According to study this simulating apparatus of propeller load based on DSP, this paper links the DSP technology with DC speed-adjusting system and active-inverter, and adopts phase controlled power converter instead of modulated power converter. So it is a helpful attempt in power drive"s digital control.
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