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Distortion power factor



 
 
The distortion power factor is used in power electronics
Power electronics

Power electronics is the applications of solid-state electronics for the control and conversion of electric power...
 to describe how the harmonic distortion of a load current decreases the average power transferred to the load. Distortion power factor is an important factor in the calculation of true power factor
Power factor

The power factor of an alternating current electric power system is defined as the ratio of the AC power flowing to the load to the AC power , and is a number between 0 and 1 ....
, which describes the decrease in average power transferred due to harmonics and to phase shift between voltage and current.

is the total harmonic distortion
Total harmonic distortion

The total harmonic distortion, or THD, of a signal is a measurement of the harmonic distortion present and is defined as the ratio of the sum of the powers of all harmonic components to the power of the Fundamental frequency....
 of the load current.






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The distortion power factor is used in power electronics
Power electronics

Power electronics is the applications of solid-state electronics for the control and conversion of electric power...
 to describe how the harmonic distortion of a load current decreases the average power transferred to the load. Distortion power factor is an important factor in the calculation of true power factor
Power factor

The power factor of an alternating current electric power system is defined as the ratio of the AC power flowing to the load to the AC power , and is a number between 0 and 1 ....
, which describes the decrease in average power transferred due to harmonics and to phase shift between voltage and current.

is the total harmonic distortion
Total harmonic distortion

The total harmonic distortion, or THD, of a signal is a measurement of the harmonic distortion present and is defined as the ratio of the sum of the powers of all harmonic components to the power of the Fundamental frequency....
 of the load current. This definition assumes that the voltage stay undistorted (sinusoidal, without harmonics). This simplification is often a good approximation in practice. is the fundamental component of the current and is the total current - both are root mean square
Root mean square

In mathematics, the root mean square , also known as the quadratic mean, is a statistics measure of the magnitude of a varying quantity. It is especially useful when variates are positive and negative, e.g., sinusoids....
-values.

The result when multiplied with the displacement power factor (DPF) is the true power factor or just power factor
Power factor

The power factor of an alternating current electric power system is defined as the ratio of the AC power flowing to the load to the AC power , and is a number between 0 and 1 ....
 (PF):

See also

  • Power factor
    Power factor

    The power factor of an alternating current electric power system is defined as the ratio of the AC power flowing to the load to the AC power , and is a number between 0 and 1 ....


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