摘要
内嵌式永磁同步电机驱动系统(IPMSM)在电动汽车宽调速范围和复杂多变的工况下运行,传统的双电流闭环PI调节器控制在IPMSM驱动系统进入弱磁区域后极易出现调节器饱和,甚至导致系统失稳的技术不足。为此,架构了计及磁路饱和及交叉饱和后的IPMSM驱动系统,基于查表快速获取系统MTPA控制时的定子电流指令;弱磁控制时,系统自动切换到单定子电流内环PI调节器控制。最后,通过系统仿真和性能测试证实了建议的电动汽车IPMSM驱动系统能够实现宽调速范围内的高效稳健运行。
Considering that the wide speed range operation and complex condition in electric vehicle,the conventional IPMSM drive system with classical two current closed-loop PI regulators often become saturated and,worse yet,the whole system tends to become unstable when it operates in field weakening region.In this paper,an IPMSM drive system was set up with considering the magnetic saturation and cross saturation.When the system operated in maximum torque per ampere （MTPA） control mode,the stator current command was obtained by fast look-up table;moreover,the system automatically switched into the single current closed-loop PI control when it operated in field weakening control mode.Furthermore,the seamless transition between the two modes was realized.Finally,system simulation was implemented.The research results validate that the suggested IPMSM drive system can achieve high-efficient and robust operation over wide speed range.
出处
《微特电机》
北大核心
2014年第8期64-66,75,共4页
Small & Special Electrical Machines
基金
国家自然科学基金项目(51377041)
安徽省教育厅重点项目(KJ2011A217)
国家大学生创新训练项目(201210359015)
关键词
IPMSM驱动系统
磁路饱和
交叉饱和
MTPA控制
弱磁控制
高效稳健运行
IPMSM drive system
magnetic saturation
cross saturation
MTPA control
field weakening control
high-efficient and robust operation
