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A power line conditioner based on flying capacitor multilevel voltage source converter with phase shift SPWM
Conference proceeding

A power line conditioner based on flying capacitor multilevel voltage source converter with phase shift SPWM

Yiqiao Liang and C.O Nwankpa
Conference Record of the 1999 IEEE Industry Applications Conference. Thirty-Forth IAS Annual Meeting (Cat. No.99CH36370), v 4, pp 2337-2343 vol.4
1999

Abstract

Capacitors Electrical equipment industry Inductors Phase modulation Power conversion Pulse width modulation Pulse width modulation converters Reactive power Switching converters Voltage
In this paper, a new power line conditioning system is proposed. This system is constructed by a flying capacitor multilevel VSC (voltage source converter) and two reactors. The phase-shift SPWM (sinusoidal pulse width modulation) switching scheme is applied to control the switching devices of this converter. Due to this multilevel VSC and the switching scheme applied to this converter, the system is applicable to distribution systems or industrial applications. The reactive power compensation, harmonic suppression and load balancing functions of the power line conditioner are analyzed. A novel and effective startup procedure is proposed to start up the system. System simulation is carried out to verify the theoretical analysis results.

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