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In industrial applications where both dc and ac adjustable speed drives (ASDs) are used, high levels of harmonic voltage and current distortions are produced. For instance, in the oil and gas industry, including land and offshore drilling rigs and ships, deep notches in the voltage waveform exist due to silicon-controlled rectifier or thyristor (SCR's) operation in the mud pump dc drives. With voltage...
In industrial applications where both DC (direct current) and AC (alternating current) adjustable speed drives (ASD) are used, high levels of harmonic voltage and current distortions are produced. For instance, in oil and gas industry, including land and offshore drilling rigs, ships, deep notches in the voltage waveform exist due to SCR's (silicon controlled rectifier or thyristor) operation in the...
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