On impedance modeling of single-phase voltage source converters

2016 ◽  
Author(s):  
Shahil Shah ◽  
Leila Parsa
Keyword(s):  
Single Phase ◽  
Voltage Source ◽  
Voltage Source Converters ◽  
Phase Voltage ◽  
Impedance Modeling

Recursive SISO Impedance Modeling of Single-Phase Voltage Source Rectifiers

2021 ◽  
Author(s):  
Jianheng Lin
Keyword(s):  
Transfer Function ◽  
Single Phase ◽  
Analytical Form ◽  
Voltage Source ◽  
Phase Voltage ◽  
Modeling Framework ◽  
Single Input Single Output ◽  
Impedance Model ◽  
Impedance Modeling ◽  
Frequency Coupling

<p>This paper proposes a recursive single-input single-output (SISO) impedance modeling framework for single-phase voltage source rectifiers, which can greatly simplify both the modeling procedure and the resulting impedance model. During the modeling process, frequency-coupling effects are modeled by the reduced-order transfer function vector rather than the transfer function matrix, so the modeling complexity is reduced. Moreover, the recursive SISO impedance model has an analytical form. And the recursive SISO impedance model can characterize the frequency-coupling dynamics of arbitrary order with a low computation burden. Experiments validate the accuracy of the recursive SISO impedance modeling.<br></p>

Recursive SISO Impedance Modeling of Single-Phase Voltage Source Rectifiers

2021 ◽  
pp. 1-1
Author(s):  
Jianheng Lin ◽  
Mei Su ◽  
Yao Sun ◽  
Dongsheng Yang ◽  
Shiming Xie
Keyword(s):  
Single Phase ◽  
Voltage Source ◽  
Phase Voltage ◽  
Impedance Modeling

Input Impedance Modeling of Single-Phase Voltage Source Rectifier With Consideration of FrequencyCoupling Effect

2020 ◽  
Author(s):  
Jianheng Lin ◽  
Mei Su ◽  
Yao Sun ◽  
Shiming Xie
Keyword(s):  
Input Impedance ◽  
Single Phase ◽  
Coupling Effect ◽  
Voltage Source ◽  
Phase Voltage ◽  
Impedance Model ◽  
Grid Impedance ◽  
Impedance Modeling ◽  
Frequency Coupling ◽  
Time Periodicity

Time-periodicity and non-linearity pose a challenge to the precise input impedance modeling of single-phase power converters. In this study, a precise input impedance model with measurability of the single-phase voltage source rectifier (VSR), which considers the frequency-coupling effect (FCE), is established. Meanwhile, it is revealed that the rectifier input impedance is dependent of the grid impedance. In the proposed modeling approach, only Laplace transform and frequencyshifting operation are required, which avoids the complicated convolution calculation in the frequency domain. In addition, the influence of grid impedance on the input impedance is studied. Simulations are conducted to verify the effectiveness of the proposed method. <br>

scholarly journals Recursive SISO Impedance Modeling of Single-Phase Voltage Source Rectifiers

2021 ◽  
Author(s):  
Jianheng Lin
Keyword(s):  
Transfer Function ◽  
Single Phase ◽  
Analytical Form ◽  
Voltage Source ◽  
Phase Voltage ◽  
Modeling Framework ◽  
Single Input Single Output ◽  
Impedance Model ◽  
Impedance Modeling ◽  
Frequency Coupling

<p>This paper proposes a recursive single-input single-output (SISO) impedance modeling framework for single-phase voltage source rectifiers, which can greatly simplify both the modeling procedure and the resulting impedance model. During the modeling process, frequency-coupling effects are modeled by the reduced-order transfer function vector rather than the transfer function matrix, so the modeling complexity is reduced. Moreover, the recursive SISO impedance model has an analytical form. And the recursive SISO impedance model can characterize the frequency-coupling dynamics of arbitrary order with a low computation burden. Experiments validate the accuracy of the recursive SISO impedance modeling.<br></p>

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