New sinusoidal pulsewidth-modulated invertor

Bowes, S.R.

doi:10.1049/piee.1975.0312

Cited by 192 publications

(63 citation statements)

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“…less than 200W is found to be much lower. This is to be expected as power converters, in general, tend to have a lower efficiency when operated at low power [27]. The efficiency drops slightly beyond 500W due to the increase in ohmic losses in the circuit.…”

Section: Resultsmentioning

confidence: 93%

Analysis and Design of a Bidirectional Cycloconverter-Type High Frequency Link Inverter with Natural Commutated Phase Angle Control

Salam¹,

Lim²,

Ayob³

2011

Journal of Power Electronics

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In this paper a cycloconverter-type high frequency transformer link inverter with a reduced switch count is analyzed and designed. The proposed topology consists of an H-bridge inverter at the transformer's primary side and a cycloconverter with three bidirectional switches at the secondary. All of the switches of the cycloconverter operate in non-resonant zero voltage and zero current switching modes. To overcome a high voltage surge problem resulting from the transformer leakage inductance, phase angle control based on natural commutation is employed. The effectiveness of the proposed inverter is verified by constructing s 750W prototype. Experimentally, the inverter is able to supply a near sinusoidal output voltage with a total harmonic distortion of less than 1%. For comparison, a PSpice simulation of the inverter is also carried out. It was found that the experimental results are in very close agreement with the simulation.

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Section: Resultsmentioning

confidence: 93%

Analysis and Design of a Bidirectional Cycloconverter-Type High Frequency Link Inverter with Natural Commutated Phase Angle Control

Salam¹,

Lim²,

Ayob³

2011

Journal of Power Electronics

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“…represent an output voltage obtained by sampling a harmonic input voltage e iω0t over the window t 3 < t < t 4 . Let the output be connected to a load described by the impedance Z(ω), so that in the frequency domain the output current iŝ…”

Section: Loading the Outputmentioning

confidence: 99%

“…This will describe an output current that switches on at t = t 3 , is driven harmonically in the window t 3 < t < t 4 , and decays as a transient thereafter, when t 4 < t < ∞. If a given input line connects to the output in question during the window t 1 < t < t 2 , then we denote the corresponding contribution to that input current by…”

Section: Loading the Outputmentioning

confidence: 99%

“…Case 1. Window t 1 , t 2 precedes window t 3 , t 4 . In this case, where t 1 < t 2 < t 3 < t 4 , every term in the expanded numerator…”

Section: Frequency Domain Calculation For Series Resistor/inductor Lomentioning

confidence: 99%

“…In the engineering literature, spectra for switching devices are generally computed by a multiple Fourier series method usually ascribed to Black [3], but acknowledged to go at least as far back as Bennett [2] (see, for example, [4]). The method involves introducing separate independent variables representing time scaled by each of the input, output, and switching frequencies, then writing the required quantities as multiple Fourier series, in terms of each of these variables separately.…”

Section: Introductionmentioning

confidence: 99%

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Voltage and Current Spectra for Matrix Power Converters

Cox¹,

Creagh²

2009

SIAM J. Appl. Math.

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A note on versions:The version presented here may differ from the published version or from the version of record. If you wish to cite this item you are advised to consult the publisher's version. Please see the repository url above for details on accessing the published version and note that access may require a subscription. Abstract. Matrix power converters are used for transforming one alternating-current power supply to another, with different peak voltage and frequency. There are three input lines, with sinusoidally varying voltages which are 120 • out of phase one from another, and the output is to be delivered as a similar three-phase supply. The matrix converter switches rapidly, to connect each output line in sequence to each of the input lines in an attempt to synthesize the prescribed output voltages. The switching is carried out at high frequency and it is of practical importance to know the frequency spectra of the output voltages and of the input and output currents. We determine in this paper these spectra using a new method, which has significant advantages over the prior default method (a multiple Fourier series technique), leading to a considerably more direct calculation. In particular, the determination of the input current spectrum is feasible here, whereas it would be a significantly more daunting procedure using the prior method instead.

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Pulse Width Modulation for Electronic Power Converters

Holtz¹

1996

Power Electronics and Variable Frequency Drives

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New sinusoidal pulsewidth-modulated invertor

Cited by 192 publications

References 1 publication

Analysis and Design of a Bidirectional Cycloconverter-Type High Frequency Link Inverter with Natural Commutated Phase Angle Control

Analysis and Design of a Bidirectional Cycloconverter-Type High Frequency Link Inverter with Natural Commutated Phase Angle Control

Voltage and Current Spectra for Matrix Power Converters

Pulse Width Modulation for Electronic Power Converters

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