PWM methods for high frequency voltage link inverter commutation

Minjeong Kim, Mostafa Mosa, Robert Balog

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

This paper presents two new pulse-width modulation (PWM) methods for a high frequency ac-link (HF-link) inverter commutation which uses a form of four-step switching scheme for safe commutation. A HF-link inverter topology enables galvanic isolation and voltage step-up, with a reduced-size transformer, but eliminates the secondary-side rectification so it has less power conversion stages than other inverter topologies. However, converting the HF-link voltage to the desirable inverter output voltage adds complexity to the control of the circuits because it is a form of ac-ac converter with both the inverter bridge input and output voltages time-varying. The voltage-reference four-step switching technique was previously presented as a safe commutation technique for the ac-ac converter with bidirectional switches. The method provided safe commutation without detailed information of the exact output current zero-cross and without needing lossy snubber circuits. However, it assumed that the input voltage polarity remained constant during the current commutation interval. This paper proposes methods to overcome the limitation of the previous method to ensure so call safe-commutation even when the HF-link voltage is changing polarity and that can be implemented by modification of conventional triangular carrier PWM methods. Therefore, the four-step switching scheme can be safely applied to the HF-link inverter. Simulations of the proposed new PWM methods are conducted using Simulink and Plexim software to demonstrate the concepts. The proposed PWM methods were experimentally verified using the dSpace 1007 HIL platform.

Original languageEnglish
Title of host publicationECCE 2016 - IEEE Energy Conversion Congress and Exposition, Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509007370
DOIs
Publication statusPublished - 13 Feb 2017
Externally publishedYes
Event2016 IEEE Energy Conversion Congress and Exposition, ECCE 2016 - Milwaukee, United States
Duration: 18 Sep 201622 Sep 2016

Other

Other2016 IEEE Energy Conversion Congress and Exposition, ECCE 2016
CountryUnited States
CityMilwaukee
Period18/9/1622/9/16

Fingerprint

Electric commutation
Inverter
Pulse width modulation
Modulation
Voltage
Electric potential
Polarity
Converter
Output
Topology
Rectification
Simulink
Networks (circuits)
D-space
Transformer
Isolation
Triangular
Switch
Time-varying
Eliminate

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Energy Engineering and Power Technology
  • Control and Optimization

Cite this

Kim, M., Mosa, M., & Balog, R. (2017). PWM methods for high frequency voltage link inverter commutation. In ECCE 2016 - IEEE Energy Conversion Congress and Exposition, Proceedings [7855372] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ECCE.2016.7855372

PWM methods for high frequency voltage link inverter commutation. / Kim, Minjeong; Mosa, Mostafa; Balog, Robert.

ECCE 2016 - IEEE Energy Conversion Congress and Exposition, Proceedings. Institute of Electrical and Electronics Engineers Inc., 2017. 7855372.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Kim, M, Mosa, M & Balog, R 2017, PWM methods for high frequency voltage link inverter commutation. in ECCE 2016 - IEEE Energy Conversion Congress and Exposition, Proceedings., 7855372, Institute of Electrical and Electronics Engineers Inc., 2016 IEEE Energy Conversion Congress and Exposition, ECCE 2016, Milwaukee, United States, 18/9/16. https://doi.org/10.1109/ECCE.2016.7855372
Kim M, Mosa M, Balog R. PWM methods for high frequency voltage link inverter commutation. In ECCE 2016 - IEEE Energy Conversion Congress and Exposition, Proceedings. Institute of Electrical and Electronics Engineers Inc. 2017. 7855372 https://doi.org/10.1109/ECCE.2016.7855372
Kim, Minjeong ; Mosa, Mostafa ; Balog, Robert. / PWM methods for high frequency voltage link inverter commutation. ECCE 2016 - IEEE Energy Conversion Congress and Exposition, Proceedings. Institute of Electrical and Electronics Engineers Inc., 2017.
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