CAJ | 학술논문

随机调制技术能有效减小空间电压矢量脉冲宽度调制（SVPWM）技术中产生的电磁干扰（EMI）。本文利用优化的马尔科夫（Markov）链对随机数进行算法控制，将三状态的 Markov 链算法加入双随机 SVPWM 技术中。借助MATLAB/SIMULINK软件建立了三状态Markov链的双随机SVPWM变频调速系统模型。仿真结果表明：该算法能更好的削减电流纹波，在减小机械振动和电磁干扰的同时，改善电流波形的质量。
수궤조제기술능유효감소공간전압시량맥충관도조제（SVPWM）기술중산생적전자간우（EMI）。본문이용우화적마이과부（Markov）련대수궤수진행산법공제，장삼상태적 Markov 련산법가입쌍수궤 SVPWM 기술중。차조MATLAB/SIMULINK연건건립료삼상태Markov련적쌍수궤SVPWM변빈조속계통모형。방진결과표명：해산법능경호적삭감전류문파，재감소궤계진동화전자간우적동시，개선전류파형적질량。
The random modulation technique can effectively reduce the Electromagnetic Interference(EMI) which is caused by the technique of the Space Vector Pulse Width Modulation (SVPWM).This paper proposed an algorithm which takes advantage of optimized Markov chain to control random number,and adds three state Markov chain into double random SVPWM technique. Establishing the model of variable-frequency speed control system which controlled by the double random SVPWM technique which uses the three state Markov chain technique with the help of MATLAB/SIMULINK software,the simulation results show that the algorithm can cut current ripple better,and improve the quality of the current waveform at the same time while reducing the mechanical vibration and electromagnetic interference.