Application of Analytic Signal and Smooth Interpolation in Pulsewidth Modulation for Conventional Matrix Converters

Szczepankowski, Pawel; Wheeler, Patrick; Bajdecki, Tomasz

doi:10.1109/tie.2019.2956391

Cited by 14 publications

(21 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The straight line between the point P 5 and P 4 constructs a geometrical change range for the y coordinate. By definition, this coordinate represents the imaginary part of the analytic signal and finally does not influence on the average fundamental output voltage [37].…”

Section: Presentation Of Ac Voltages As a Collection Of Rotating mentioning

confidence: 99%

“…The shape of the synthesis field changes in time because vectors are rotating. Therefore, the precision of the proposed synthesis scheme depends on the quadrature component extraction algorithm [37]. The reference output voltage, which strictly corresponds to the x coordinates of the analytical output voltage, can be obtained by using a proper modulating signal.…”

Section: B the Pwm Duty Cycles Computation Concept For Multiphase Symentioning

confidence: 99%

“…18. All required PWM duty cycles have been calculated using the DAV-PWM modulation method described in [37]. The Min-Mid-Max (MMM) switching strategy presented in [40] has been adopted.…”

Section: A Matrix Converter With 3 Inputs and 11 Outputsmentioning

confidence: 99%

“…Fully independent control of the input power factor, in a matrix converter, is not available because of the fundamental relation between the input and output voltages (27) and currents (37). Nevertheless, when the matrix converter does not operate with its own maximum transfer ratio (it means the maximum length of the reference output voltage trajectory inside the synthesis field), an input angle can be set to achieve a desired input power factor.…”

Section: B An Input Angle Controlmentioning

confidence: 99%

“…The paper propose the direct method variant, which can be compared to the scalar or Venturini methods. Such a comparison has been presented in [37].…”

Section: Asymmetry Of the Input Voltagesmentioning

confidence: 99%

See 4 more Smart Citations

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

2020

Self Cite

View full text Add to dashboard Cite

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.

show abstract

Section: Presentation Of Ac Voltages As a Collection Of Rotating mentioning

confidence: 99%

Section: B the Pwm Duty Cycles Computation Concept For Multiphase Symentioning

confidence: 99%

“…18. All required PWM duty cycles have been calculated using the DAV-PWM modulation method described in [37]. The Min-Mid-Max (MMM) switching strategy presented in [40] has been adopted.…”

Section: A Matrix Converter With 3 Inputs and 11 Outputsmentioning

confidence: 99%

Section: B An Input Angle Controlmentioning

confidence: 99%

“…The paper propose the direct method variant, which can be compared to the scalar or Venturini methods. Such a comparison has been presented in [37].…”

Section: Asymmetry Of the Input Voltagesmentioning

confidence: 99%

See 3 more Smart Citations