CAJ | 학술논문

混合励磁同步电机(Hybrid excitation synchronous machine,HESM)磁场分布往往呈现三雏特性,二雏有限元法难以适用.而三维有限元瞬态场分析的计算量巨大,进行混合励磁同步电机与控制系统外电路的闭环场路耦舍仿真目前还不现实,本文建立了切向磁钢HESM的三维有限元模型,由静磁场计算得到气隙磁通随励磁电流的变化规律.利用三雏瞬态场路耦合分析电机空载特性和外特性,由电势波形和矢量图推算不同励磁、不同负载电流下电机同步电抗值.根据电压方程建立了切向磁钢HESM的MATLAB/Simulink数学模型,仿真和实验结果验证了模型的正确性,为新型混合励磁同步电机的闭环系统仿真分析、快速计算提供了重要的分析手段.
혼합려자동보전궤(Hybrid excitation synchronous machine,HESM)자장분포왕왕정현삼추특성,이추유한원법난이괄용.이삼유유한원순태장분석적계산량거대,진행혼합려자동보전궤여공제계통외전로적폐배장로우사방진목전환불현실,본문건립료절향자강HESM적삼유유한원모형,유정자장계산득도기극자통수려자전류적변화규률.이용삼추순태장로우합분석전궤공재특성화외특성,유전세파형화시량도추산불동려자、불동부재전류하전궤동보전항치.근거전압방정건립료절향자강HESM적MATLAB/Simulink수학모형,방진화실험결과험증료모형적정학성,위신형혼합려자동보전궤적폐배계통방진분석、쾌속계산제공료중요적분석수단.
The magnetic field distribution of hybrid excitation synchronous machine(HESM) has distinct 3-D characteristics due to the existence of the excitation equipment, thus the 2-D-FEA (finite element analysis) is unsuitable for analyzing the new machine. The 3-D-FEA model of the interior PM HESM (IPM-HESM) is built and the air-gap flux varied with excitation current is obtained by 3-D static magnetic field analysis. The synchronous reactance of IPM-HESM with different excitations and the load current is calculated by 3-D transient field-circuit coupled analysis. Based on the voltage equation of the synchronous machine, the MATLAB/Simulink model of IPM-HESM is built. Experimental results of output characteristics are in agreement with the simulation analysis by the MATLAB model. The result indicates that the developed model can provide an important help for the system level simulation of HESM.