Initial voltage angle detection method of a PWM converter without any grid voltage measurement using conduction state of diodes for smooth starting

Jae Jung Jung, Eunsoo Jung, Jung Ik Ha, Seung Ki Sul

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

6 Scopus citations

Abstract

Accurate detection of the grid angle at the startup of a converter prevents the over-current trip and also reduces the commissioning time of the system. This paper presents a method to detect initial angle of the grid voltages by measuring the phase currents depending on conduction state of diodes. During the diode conduction, the source voltages are estimated and the estimated voltages are fed into phase locked loop (PLL). When all the diodes are turned off, the source voltage estimator and the PLL are bypassed and the voltage angle is calculated from the frequency of the estimated voltages. The feasibility of the proposed method has been verified by computer simulation and experimental results.

Original languageEnglish
Title of host publicationConference Proceedings - 2012 IEEE 7th International Power Electronics and Motion Control Conference - ECCE Asia, IPEMC 2012
Pages730-734
Number of pages5
DOIs
StatePublished - 2012
Event2012 IEEE 7th International Power Electronics and Motion Control Conference - ECCE Asia, IPEMC 2012 - Harbin, China
Duration: 2 Jun 20125 Jun 2012

Publication series

NameConference Proceedings - 2012 IEEE 7th International Power Electronics and Motion Control Conference - ECCE Asia, IPEMC 2012
Volume1

Conference

Conference2012 IEEE 7th International Power Electronics and Motion Control Conference - ECCE Asia, IPEMC 2012
Country/TerritoryChina
CityHarbin
Period2/06/125/06/12

Keywords

  • grid angle
  • initial angle detection
  • pulse width modulation (PWM) converter
  • voltage source sensorless converter

Fingerprint

Dive into the research topics of 'Initial voltage angle detection method of a PWM converter without any grid voltage measurement using conduction state of diodes for smooth starting'. Together they form a unique fingerprint.

Cite this