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Voltage unbalance and harmonic voltage distortion affect the power, torque and vibrations on induction motors (IM).
These emissions flow through wind park impedances, leading to grid voltage distortion.
Parallel resonance may worsen the problem because it increases voltage distortion around the resonance frequency.
Harmonic currents generated by the variable speed drives interact with power system impedance to give rise to harmonic voltage distortion.
It is seen from simulation results that the HC is dramatically decreased with the increment of the load's nonlinearity level and the utility side's background voltage distortion.
The HC level was affected more by the nonlinearity of the load side than by the utility side's background voltage distortion.
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It also achieves very fast transient response during change in reactive power demands and grid voltage distortions.
This article presents considerations of the effectiveness of suppressing output voltage distortions of low power single-phase voltage source inverters (VSI) dedicated for UPS systems working with the nonlinear rectifier RC load defined in the EN 62040-3 standard.
A variety of voltage distortions can be imitated through the combinations of the various voltage harmonics.
The high-frequency disturbance-generating device can generate the high-order harmonics and voltage distortions.
Meanwhile, the voltage distortions of Bus 2 and Bus 3 are mitigated as shown in Fig. 7a and d, respectively.
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