某中压交流电力推进系统变频器的设计论证

Design Demonstration of Converter of a Medium Voltage AC Electric Propulsion System

电力推进动力系统是船舶主推进系统的一个重要方向和发展趋势,变频器作为控制电机性能的关键设备,决定了其动态、稳态特性,并影响船体操纵性能。文章介绍了某5000吨级公务船的使命任务、船型构造和电力系统的组成,接着对12脉冲变频器和AFE变频器的原理进行了阐述,最后从设备配置、成本价格、谐波控制和可靠性的角度分析了两者的差异,结合本船实际情况选择了AFE变频器。对于电力推进船舶主推进系统的设计具有一定的参考价值。

The electric propulsion power system is an important direction and trend of the ship main propulsion system.As a key equipment for controlling the performance of the motor,it determines the dynamic and steady-state characteristics of the converter and affects the ship handling performance.The mission,ship structure and power system of a 5000 t class official ship are introduced in the article.Then the principle of 12-pulse converter and AFE converter are described.Finally,the differences between the two are analyzed from the perspectives of equipment configuration,cost price,harmonic control and reliability.The AFE converter is selected in combination with the actual situation of the ship.It has certain reference value for the design of the main propulsion system of electric propulsion ship.