Investigation of Phase Voltage Asymmetry Influence on Asynchronous Motor Modes in MATLAB/Simulink Simulation Environment

I. F. Suvorov, V. V. Romanova, S. V. Khromov

Abstract


The paper considers the issues of investigation of asynchronous motors (AM) of different capacity equipped with the A4 cage rotor based on analytical calculations and simulation with the Matlab software complex and Simulink package.

The main purpose of this investigation is the analysis of influence of phase voltage asymmetry caused by phase voltage deviations on AM modes. The value of voltage deviation was changed with 5 % pitch, the limit value of voltage deviation being 10 % of the nominal one.

Static and dynamic mechanical characteristics of motors, dependencies of electric motor phase currents on the voltage deviation values demonstrating a quantitative and qualitative influence of voltage deviation in one or more phases at simultaneous connection of three-phase and a high single-phase load were investigated.

Obtained simulation results may be used at developing methods, software and hardware providing a prompt response to supply voltage deviation changes under significant non-linear asymmetric loads.


Keywords


MATLAB/Simulink simulation; voltage deviation; asynchronous motor; asynchronous motor modes; voltage asymmetry

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DOI: http://dx.doi.org/10.14529/power160309

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