Single-phase static converters for rural distribution system

Author

Bellar, M.D. ; Aredes, M. ; Silva Neto, J.L. ; Rolim, L.G.B. ; Aquino, A.F.C. ; Petersen, V.C.

Author_Institution

FEN-DETEL, Universidade do Estado do Rio de Janeiro, Brazil

Volume

2

fYear

2004

fDate

4-7 May 2004

Firstpage

1237

Abstract

This work presents the development of four-wire single-phase to three-phase static converters for rural distribution system. Component specification guidelines and control strategies of two proposed topologies are described. Both converters are based on a front-end half-controlled PWM rectifier that handles the DC bus voltage regulation as well as reduces the input current distortion. In order to provide three-phase four-wire system, two basic inverter topologies are considered: three-leg PWM-VSI with split DC link capacitors and four-leg PWM-VSI. Complete models are implemented in an electromagnetic transient simulation package (PSCAD/EMTDC ), where each converter is connected to a typical rural distribution network and supplies three-phase unbalanced loads. Performance analysis based on simulation results is carried out considering the occurrence of voltage sags.

Keywords

EMTP; PWM invertors; PWM rectifiers; distortion; power capacitors; power convertors; power distribution control; power supply quality; voltage control; DC bus voltage regulation; EMTDC; PSCAD; component specification; electromagnetic transient simulation package; four-leg PWM-VSI; front-end half-controlled PWM rectifier; input current distortion; rural distribution system; single-phase static converters; split DC link capacitors; three-leg PWM-VSI; three-phase four-wire system; voltage sags; Capacitors; Electromagnetic modeling; Guidelines; Network topology; Packaging; Pulse width modulation; Pulse width modulation converters; Pulse width modulation inverters; Rectifiers; Voltage control; PWM semi-controlled rectifier; four-wire system; rural electrification; single-phase to three-phase converters;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics, 2004 IEEE International Symposium on

Conference_Location

Ajaccio, France

Print_ISBN

0-7803-8304-4

Type

conf

DOI

10.1109/ISIE.2004.1571990

Filename

1571990