永磁辅助式同步磁阻电机航空发电系统的研究

Research on Aviation Generation System of Permanent Magnet Assisted Synchronous Reluctance Machine

结合永磁辅助式同步磁阻电机特征及飞机对发电系统高效、高功率密度、高转速的需求,在对比不同类型起动发电机优缺点的基础上,提出了永磁辅助式同步磁阻电机的270 V高压直流电源系统新构型。给出了电机和功率变换器工作原理和结构特征,重点分析系统发电模式下双三相永磁辅助式同步磁阻电机电压外环恒转矩角电流内环控制策略。以额定功率45 kW直流电源系统为对象,建立Simulink发电控制模型,分别对电机稳态调压、负载瞬态变换和畸变频谱进行仿真,仿真结果表明,该系统性能可满足国军标和飞机对电源系统需求。

Combined with the characteristics of permanent magnet assisted synchronous reluctance motor and the requirements of aircraft for high efficiency,high power density and high speed of power generation system,based on the comparison of the advantages and disadvantages of different types of starting generators,a new configuration of 270 V high voltage DC power supply system for permanent magnet assisted synchronous reluctance machine was proposed.The working principle and structural characteristics of the motor and power converter were given.The dual three-phase permanent magnet assisted synchronous reluctance qnachine voltage outer loop under the system power generation mode was emphatically analyzed.Based on the constant torque angle current inner loop control strategy,the Simulink generation control model was established for the rated power 45 kW DC power system.The steady-state voltage regulation,load transient transformation and distortion spectrum of the motor were simulated respectively.The results show that the system performance can meet the requirements of the national military standard and aircraft for power system.