Abstract

In this paper, comparative evaluation of two methods for the powerful three-level PWM inverter main electric mill 5000 , with a view to improving the quality of bus voltage at the common connection. The first method is obtained on the basis of experimental measurements and reflects the actual content of higher-order harmonics in the voltage across the section of 10 kV and a current of inverter. As an alternative method PWM method is considered the method selective harmonic elimination . The Application of the second method to reduce the content of higher harmonics in the current and voltage of the inverter on the tires of 10 kV.

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