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Sine filter modulation

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sine_filter_design

sine_filter_circuit

Function of Sine Filter

  • - Conversion PWM wave into sinusodial form
  • - Carrier Frequency Control
  • - Consists of Reactor & Capacitor

sine_filter_effect

Characteristics of Sine Filter

  • - Higher temperature rise in case of using PWM wave than sinusodial wave
  • - Low pass filtering effect of harmonic wave below cut-off frequency
  • - Obtain sine wave close to pure sinusodial form

sine_filter_test

Total Harmonic Distorsion is 5% and below, IEEE.112 std.

  • - Adjust of Reactor and Capacitor combination
  • - Conclusion of most appropriate sine filter thru phased experiment
  • - Application of LC filer or LCL filter