1. Topology for current balancer with half-bridge inverters in single-phase three-wire distribution systems with DC-capacitor-voltage balancer.
- Author
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Baba, Yusuke, Sugahara, Kazuya, Okamoto, Masayuki, Hiraki, Eiji, and Tanaka, Toshihiko
- Subjects
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ELECTRIC inverters , *TOPOLOGY , *BRIDGE circuits , *DIRECT currents , *CAPACITORS , *ELECTRIC potential - Abstract
This paper proposes a new topology for a current balancer with half-bridge inverters in single-phase three-wire distribution systems. Two half-bridge inverters are connected to the sources. The midpoint of the two capacitors on the DC-side is connected to a neutral line. The two half-bridge inverters function as a current balancer for single-phase three-wire distribution systems by exchanging the active and reactive power on each feeder through the two DC capacitors. The third leg functions as a DC-capacitor-voltage balancer for two DC capacitors connected to the half-bridge inverters. Thus, balanced source voltages and currents are obtained on the secondary side on the pole- mounted distribution transformer with balanced DC-capacitor voltages. The basic principle of the proposed current balancer is discussed in detail, and then confirmed by digital computer simulation using PSIM software. A prototype experimental model is constructed and tested. Experimental results show that balanced source voltages and currents are obtained on the secondary side on the pole-mounted distribution transformer with balanced DC-capacitor voltages. © 2012 Wiley Periodicals, Inc. Electr Eng Jpn, 180(4): 38-46, 2012; Published online in Wiley Online Library (). DOI 10.1002/eej.22277 [ABSTRACT FROM AUTHOR]
- Published
- 2012
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