转子磁链定向控制在鱼雷交流逆变电动力系统中应用研究

Application of Rotor Flux Linkage Oriented Control to Torpedo Inverter AC Electric Power System

介绍了鱼雷用交流电机转子磁链定向控制系统的软件构成,建立了一种归一化的定标模型,采用该定标模型能够保证系统具有足够的精度。给出了系统在基频以上运行时的弱磁调节方案,该方案在实验数据的基础上进行了多项式拟合,以保证系统在恒功率区域稳定运行。电流模型是转子磁链定向控制的关键,这里对其进行了离散化分析。最后进行了实验,实验结果显示该控制可以取得较好的动静态性能。

This paper introduces the software structure of torpedo AC motor＇s rotor flux linkage oriented control system and establishes a kind of normalized scaling model This model can guarantee sufficient system precision. A weak magnetic field adjusting scheme is brought forward when the system is running above basic frequency. This scheme carries on polynomial expression fitting based on experimental data to guarantee the system＇s stable running in constant power area. Current model is the key part in the rotor flux linkage oriented control system, and its discretization analysis is conducted. The experimental result testifies that this control scheme demonstrates better dynamic and static performances.