AbstractCompares with the three-phase machine driving system, the polyphase machine system in the high efficiency, redundant reliable and the low DC voltage power supply application situation has the obvious superiority, however, takes one kind of new technology, polyphase machine's control still exists in the theory and the practice massive knows the research and the discussion question. This article to polyphase machine's modelling, lacked the control technology which moved to conduct the research, and take six asynchronous machines as the object, has carried on the simulation and the analytical study. The paper has first analyzed the heterogeneity asynchronous machine mathematical model harmonious wave analysis, and has carried on the analysis to the heterogeneity asynchronous machine invertor power supply situation's space and time overtone, has established under six asynchronous machine static coordinate system's simulation model and has given the concrete step which Matlab/Simulink realizes, has conducted the analytical study to six asynchronous machine's characteristic. Has analyzed the polyphase machine various interphase currents voltage, stator's magnetic mass as well as various space vector function and to the overtone the influence. The paper has also established the polyphase machine when lacks moves the dynamic mathematical model, and lacked to six electrical machinery moves has conducted the simulation research. Has studied lacks when various interphase currents voltage change, the stator magnetic mass change, the rotational speed and the torque change, as well as the belt carries ability the change. Has built six asynchronous machine's model as well as six electrical machinery lack the model by Matlab/Simulink, has completed the related experiment and the analysis. By had certain understanding to the heterogeneity asynchronous machine's movement, lacked to the polyphase machine had the rational understanding. Through as well as lacks to six electrical machinery the simulation to the Matlab/Simulink function movement can the skilled movement, has built the solid foundation for the later study and the research. key word: Six asynchronous machines lack the performance characteristic analysis
