NDLI: Application of a five-level PWM inverter to SVC

Content Provider	IEEE Xplore Digital Library
Author	Yamamoto, S. Matsui, K.
Copyright Year	2001
Description	Author affiliation: Dept. of Electr. Eng., Chubu Univ., Kasugai, Japan (Yamamoto, S.)
Abstract	Multi-level PWM inverters, (including five-level inverters), have significant operational advantages, such as the ability to drive a motor with nearly sinusoidal current waveforms and at higher output. Consequently, the consideration of their applications is of increasing interest. When one looks in detail at their possibilities, the requirement for larger capacity inverters is also anticipated for use in large AC motor drives, SVCs (static VAr compensators) and the like. In this paper, the possibility of applying the technology to SVCs is discussed. By controlling the phase and the amplitude of the modulating sinusoidal signal, the capacitor voltage and the output current can be controlled successfully, which can play an important role in SVC applications. In addition, a third order harmonic can be injected, and the capacitor voltage can be controlled by shifting its phase with reference to the modulating sinusoidal waveform. By using these characteristics, coupled with an adequate feedback control circuit, each capacitor voltage can be controlled, even with respect to fluctuations in the load or unbalanced states of the individual capacitor voltages.
Sponsorship	IEEE Ind. Electron. Soc.
Starting Page	471
Ending Page	476
File Size	453645
Page Count	6
File Format	PDF
ISBN	0780370902
DOI	10.1109/ISIE.2001.931836
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-06-12
Publisher Place	South Korea
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Pulse width modulation inverters Static VAr compensators Voltage control Capacitors AC motors Phase modulation Amplitude modulation Coupling circuits Feedback control Feedback circuits
Content Type	Text
Resource Type	Article

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