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This paper presents a novel seven-phase open-end winding drive system supplied by the dual non-square matrix converter. The input to each of the matrix converter is three phase utility grid system and the output is seven phase voltages with variable voltage and frequency. The two matrix converters feeding a seven-phase load are supplied from a common single three-phase utility source of 50 Hz. Space...
This paper presents a novel switching scheme named as Switched Rectifier Inverter (SRI) modulation scheme for three phase to single phase (3×1) Matrix converter based isolated AC-DC converter. The proposed SRI modulation scheme incorporates symmetrical Space Vector Modulation (SVM) with inverter logic for switching the twelve switches of Matrix based AC-DC converter. The operation of proposed SRI...
This paper proposes three overmodulation schemes in the three-to-five phase indirect matrix converter. The first scheme uses only the adjacent large vectors to produce the reference output voltages. The second scheme improves on that by reducing vector elimination in the d2-q2 vector space based on the requirements of the output. The third scheme reduces the overmodulation requirements of the inverter...
Aiming at the large instantaneous common-mode voltage in traditional space vector modulation strategy for two-stage matrix converter (TSMC), on the basis of analyzing the laws of common-mode voltage, an improved modulation strategy to reduce common-mode voltage was proposed. To suppress common-mode voltage effectively, the sector of rectifier stage was doubled into twelve sectors from six sectors,...
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