Naslov
PWM controlled neutral point clamped multilevel converter

Autori
Arnedo, Luis ; Kovacic, Marinko ; Wang, Yang ; Krishnamurthy, Shashank

Broj patenta
US9755546B2

Godina
2017

Datum patenta
5.9.2017.

Nositelj prava
Otis Elevator Company, Farmington, CT, US, Zagreb, Hrvatska

Sažetak
A neutral point clamped, multilevel level converter includes a DC voltage link ; a first capacitor coupling one side of the DC link to a neutral point ; a second capacitor coupling another side of the DC link to the neutral point ; a plurality of phase legs, each phase leg including switches, each phase leg coupled to an AC node ; a current sensor associated with each AC node ; and a controller generating a PWM signal to control the switches, the controller generating a current zero sequence component in response to current sensed at each of the current sensors, the controller adjusting a modulation index signal in response to the current zero sequence component to produce the PWM signal.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

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