Advanced soft-switching sinewave PWM high-frequency inverter-link cycloconverter incorporating voltage-clamped quasi-resonant and capacitive snubber techniques

Yonemori, H.; Nakaoka, Mutsuo

doi:10.1109/ias.1991.178330

Cited by 6 publications

(2 citation statements)

References 7 publications

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“…For example, PDM for a three-phase cycloconverter was analyzed, modeled, and simulated in [4]. Others such as [5], [6] and [7] made revisions to the threephase PDM cycloconverter, such as using various resonant converters as the input to the cycloconverter. Additional variant on the soft cycloconverter was reported in [1] which uses an isolated input to the cycloconverter.…”

Section: Introductionmentioning

confidence: 99%

Pulse density modulated soft-switching single-phase cycloconverter

Taufik

Adamson

Prabuwono

2011

2011 IEEE Applied Power Electronics Colloquium (IAPEC)

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Abstract-Single stage cycloconverters generally incorporate hard-switching at turn on and soft-switching at turn off which limit limits their use in lower frequency applications. This paper presents a proposed solution to this problem using a pulse density modulated soft-switching cycloconverter or abbreviated PDMSS cycloconverter. Unlike standard cycloconverters, the controller in PDMSS cycloconverter lets only complete half cycles of the input waveform through to the output. This requires a much greater frequency step down from the input to the output. The analysis and design of the PDMSS cycloconverter will be described using a simulink model whose results demonstrate the ability of PDMSS to produce the sinusoidal waveforms.

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Section: Introductionmentioning

confidence: 99%

Pulse density modulated soft-switching single-phase cycloconverter

Taufik

Adamson

Prabuwono

2011

2011 IEEE Applied Power Electronics Colloquium (IAPEC)

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“…Kobe University, Japan dating back to 1991 [6], [7], [8], that utilize a PDM soft switching cycloconverter as well. These papers also use various resonant converters as the input to the cycloconverter.…”

Section: Chapter 2 Backgroundmentioning

confidence: 99%

Pulse Density Modulated Soft Switching Cycloconverter

Adamson¹

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This thesis explores the analysis and design of a pulse density modulated (PDM), soft switching cycloconverter. Unlike standard cycloconverters, the controller in this converter does not adjust thyristor firing angles. It lets only complete half cycles of the input waveform through to the output. This allows and requires a much greater frequency step down from the input to the output. The advantages, shortcomings and tradeoffs of this topology are explored as this converter is designed, built and tested.The resulting cycloconverter has many deficiencies, but proves the concept of the PDM soft switching technique. Cases for further improvement and study are outlined. In the end, this converter shows much promise for applications requiring a high step down in frequency, as well as where the lower electromagnetic interference (EMI) of soft switching may be beneficial.v

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A zero-current-switching based three-phase PWM inverter having resonant circuits on AC-side

Fujita

Akagi

Kohata

Conference Record of the 1993 IEEE Industry Applications Conference Twenty-Eighth IAS Annual Meeting

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Abstmct -This paper presents a zero current switching based three-phase PWM inverter having small resonant circuits on the ac side, the resonant frequency of which is 60kHz. The zero current switching inverter can greatly reduce the switching losses and electromagnetic noises. In this paper, the principle of zero current switching operation, the design of the resonant circuits and the control sequence are described from a theoretical and practical point of view. Moreover, experimental results obtained from a zero current switching PWM inverter which is driving an induction motor of 2.2kW are shown to verify the practicability.

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Advanced soft-switching sinewave PWM high-frequency inverter-link cycloconverter incorporating voltage-clamped quasi-resonant and capacitive snubber techniques

Cited by 6 publications

References 7 publications

Pulse density modulated soft-switching single-phase cycloconverter

Pulse density modulated soft-switching single-phase cycloconverter

Pulse Density Modulated Soft Switching Cycloconverter

A zero-current-switching based three-phase PWM inverter having resonant circuits on AC-side

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