CAJ | 학술논문

　　通过分析无刷直流电动机数学模型，利用Matlab/Simulink对无刷直流电机无位置传感器控制系统进行了建模和仿真。分别用Simulink库中自带的电机模型，反电动势过零点检测法、速度PI控制和电流滞环PWM控制方式对系统仿真，使系统更直观、简化，更加贴近实际控制系统，为无刷直流电机无位置传感控制系统的设计与调试提供了新的方法。仿真结果得到的三相行电流波形和反电动势波形与理论分析得到的波形一致，验证了该无位置传感器控制系统的正确性。
　　통과분석무쇄직류전동궤수학모형，이용Matlab/Simulink대무쇄직류전궤무위치전감기공제계통진행료건모화방진。분별용Simulink고중자대적전궤모형，반전동세과영점검측법、속도PI공제화전류체배PWM공제방식대계통방진，사계통경직관、간화，경가첩근실제공제계통，위무쇄직류전궤무위치전감공제계통적설계여조시제공료신적방법。방진결과득도적삼상행전류파형화반전동세파형여이론분석득도적파형일치，험증료해무위치전감기공제계통적정학성。
Through the analysis of the mathematical model of brushless dc motor, using Matlab/Simulink for brushless dc motor without position sensor control system modeling and simulation. Using Simulink library respectively with motor model,counter electromotive force zero method, speed PI control and current hysteresis PWM control mode of system simulation, and makes the system more intuitive, simplified, more close to the actual control system for brushless dc motor without position sensor control system design and debugging provides a new method. Simulation results obtained three phase line current waveform and back emf waveform and theoretical analysis of the wave get consistent,verify the sensorless control system accuracy.