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A simple method for output voltage control of a three‐phase multilevel inverter considering DC voltage fluctuation
Author(s) -
Amei Kenji,
Teshima Kenji,
Tanizaki Youhei,
Ohji Takahisa,
Sakui Masaaki
Publication year - 2010
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.20906
Subject(s) - inverter , voltage , transformer , electronic engineering , engineering , pulse width modulation , waveform , control theory (sociology) , electrical engineering , computer science , control (management) , artificial intelligence
Abstract Multilevel inverter circuit generates the stair‐like voltage without using transformer and interphase reactor, and it is the circuit which realizes reduction in the harmonics and enlargement of the capacity. In addition, the application of PWM control improves the waveform, and reduces the switching component to the conventional half, and the filter capacity is reduced. In this paper, improvement on the voltage utilization factor and feedback control of output voltage are applied to multilevel inverter circuit. For the DC power supply with the intense fluctuation, it is necessary to construct inverter circuit which can supply stabilized AC voltage. One‐chip microcomputer with various functions is used for the control equipment of this circuit, and miniaturization and cost reduction of the control equipment are realized. Here, the control principle and experimental results of this equipment are mainly reported. © 2009 Wiley Periodicals, Inc. Electr Eng Jpn, 170(3): 40–47, 2010; Published online in Wiley InterScience ( www.interscience.wiley.com ). DOI 10.1002/eej.20906