CAJ | 학술논문

七相变频调速系统因缺相运行更具有代表性故近年来受到关注，本文以DSP芯片TMS320 F28335为处理器，提出了三类七相电压型逆变器 SVPWM 调制方法，其中 I 类算法相当于三相SVPWM算法在七相系统的简单扩展，计算量小，但其相电流谐波含量大；II类和III类SVPWM分别采用空间解耦的思想，通过调整电压矢量的作用时间和顺序，尽量减小三次和五次谐波子空间合成矢量，从而分别达到消除3次谐波以及同时消除3次和5次谐波的目的。本文对三类调制方法的原理、DSP实现过程、消除谐波效果分别进行了仿真分析和实验验证，同时本文提出的基于DSP 28335的SVPWM调制方法可以方便地扩展到m（奇数）相系统。
칠상변빈조속계통인결상운행경구유대표성고근년래수도관주，본문이DSP심편TMS320 F28335위처리기，제출료삼류칠상전압형역변기 SVPWM 조제방법，기중 I 류산법상당우삼상SVPWM산법재칠상계통적간단확전，계산량소，단기상전류해파함량대；II류화III류SVPWM분별채용공간해우적사상，통과조정전압시량적작용시간화순서，진량감소삼차화오차해파자공간합성시량，종이분별체도소제3차해파이급동시소제3차화5차해파적목적。본문대삼류조제방법적원리、DSP실현과정、소제해파효과분별진행료방진분석화실험험증，동시본문제출적기우DSP 28335적SVPWM조제방법가이방편지확전도m（기수）상계통。
The seven?phase adjustable speed drive system has drawn more attention because of its typical open –phase fault operation in recent years. Based on the DSP TMS320F28335 and the SVPWM of three?phase voltage source inverter, three kinds of SVPWM of 7?phase voltage source inverter are proposed in this paper. The control strategy, realization process and harmonic elimination analysis is verified by simulation and experiment results re?spectively. The current has a plenty of harmonic content in SVPWM I;with the space decompsition, the compsitive vector in 3rd and 5th harmonic subspace has been reduced remarkably, and the 3rd harmonic content and 5th har?monic content has been eliminated in SVPWM II and SVPWM III. And these SVPWM methods based on DSP28335 could be easily used in other m( odd number)?phase system.