Transcription of Application Note Sine wave filter solutions for motor ...
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1 Sine wave filter solutions for motor drive applicationsApplication Note21. Technical background 32. motor drives output phenomena 4 Excessive dv/dt 4 Peak- and overvoltage 5 Additional losses in the motor 6 Cable shields and parasitic earth currents 6 HF electromagnetic noise in the motor cable 7 Bearing currents 8 Acoustic motor noise 93. Output filter solutions for motor drives 10 dv/dt reactor 10 dv/dt filter 11 Sine wave filter Symmetrical sine wave filter Sinus plus symmetrical and asymmetrical sine wave filter 144. Sine wave filter selection 16 Current and voltage rating 16 Frequency 17 Required drives settings 18 Voltage drop considerations 205. Application examples 21 motor drive with long motor cable 21 motor drive with multiple motors in parallel 21 Retrofit installations with motor drives 21 LV motor drive with MV- motor / 22 step-down / step-up transformer Application 6.
drive manufacturers employ high-speed semiconductor (IGBT) switches and pulse width modulation (PWM) techniques to generate fast rise time voltage pulses of the appropriate duration and polarity. Unfortunately, this creates a considerable number of problems for OEMs and system integra- ... er Drive Motor.
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