Study of asymmetrical regimes in matrix converters for multi-phase high speed generators

Sobczyk, Tadeusz; Sieńko, Tomasz; Danilewicz, J.B.

doi:10.1109/ptc.2005.4524351

Cited by 4 publications

(1 citation statement)

References 3 publications

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“…The presented method of computing the PWM duty cycles for a five-phase input converter can be successfully extended to the other matrix converters with a greater number of inputs. A new concept of power flow control in a power system transmission line by a new Flexible AC Transmission Systems (FACTS) device, which contains two power transformers and a multiphase matrix converter as an active control unit was proposed in papers [55], [56]. However, the authors did not propose a technique of the voltage modulation than the control for the cycloconverter.…”

Section: A Computation Of the Pwm Duty Cycles Adopting The Nearest Tmentioning

confidence: 99%

Direct Modulation for Conventional Matrix Converters Using Analytical Signals and Barycentric Coordinates

2020

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This paper proposes the generalized direct modulation for Conventional Matrix Converters (CMC) using the concept of analytical signals and barycentric coordinates. The paper proposes a novel approach to the Pulse Width Modulation (PWM) duty cycle computing, which allows faster prototyping of direct control algorithms. The explanation of the new idea using analytical considerations demonstrating the principles of direct voltage synthesis has been presented in the article. The study concerns mainly the CMC3 × 3 but solutions for 3 × n, 5 × 5, and 5 × 3 topologies have also been discussed. The transformation of instantaneous input voltages to analytic signals great permits for simple presenting of real input voltage conditions such as waveform type, asymmetry or other deformation like higher-order harmonics. The proposed interpolation methods allow for determining the values of PWM duty cycles using simple formulas based on the determinants of the 2nd-degree matrices. Therefore, the proposed method, which based on the barycentric coordinates, frees an algorithm from trigonometry and angles.

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Section: A Computation Of the Pwm Duty Cycles Adopting The Nearest Tmentioning

confidence: 99%