Please use this identifier to cite or link to this item: http://localhost/handle/Hannan/212052
Title: A Numerical Matrix-Based Method for Stability and Power Quality Studies Based on Harmonic Transfer Functions
Authors: Mohammad Kazem Bakhshizadeh;Frede Blaabjerg;Jesper Hjerrild;Xiongfei Wang;&x0141;ukasz Kocewiak;Claus Leth Bak
Year: 2017
Publisher: IEEE
Abstract: Some couplings exist between the positive- and negative-sequence impedances of a voltage-sourced power converter especially in the low frequency range due to the nonlinearities and low-bandwidth control loops such as the phase-locked loop. In this paper, a new numerical method based on the harmonic transfer function for analysis of the linear time periodic systems is presented, which is able to handle these couplings. In a balanced three-phase system, there is only one coupling term, but in an unbalanced (asymmetrical) system, there are more couplings, and therefore, in order to study the interactions between these couplings a matrix-based method should be used. No information about the structure of the converter is needed and elements are modeled as black boxes with known terminal characteristics. The proposed method is applicable for both power quality (harmonic and interharmonic emissions) and stability studies, which is verified by simulations in this paper.
URI: http://localhost/handle/Hannan/212052
volume: 5
issue: 4
More Information: 1542,
1552
Appears in Collections:2017

Files in This Item:
File SizeFormat 
8013682.pdf3.75 MBAdobe PDF
Title: A Numerical Matrix-Based Method for Stability and Power Quality Studies Based on Harmonic Transfer Functions
Authors: Mohammad Kazem Bakhshizadeh;Frede Blaabjerg;Jesper Hjerrild;Xiongfei Wang;&x0141;ukasz Kocewiak;Claus Leth Bak
Year: 2017
Publisher: IEEE
Abstract: Some couplings exist between the positive- and negative-sequence impedances of a voltage-sourced power converter especially in the low frequency range due to the nonlinearities and low-bandwidth control loops such as the phase-locked loop. In this paper, a new numerical method based on the harmonic transfer function for analysis of the linear time periodic systems is presented, which is able to handle these couplings. In a balanced three-phase system, there is only one coupling term, but in an unbalanced (asymmetrical) system, there are more couplings, and therefore, in order to study the interactions between these couplings a matrix-based method should be used. No information about the structure of the converter is needed and elements are modeled as black boxes with known terminal characteristics. The proposed method is applicable for both power quality (harmonic and interharmonic emissions) and stability studies, which is verified by simulations in this paper.
URI: http://localhost/handle/Hannan/212052
volume: 5
issue: 4
More Information: 1542,
1552
Appears in Collections:2017

Files in This Item:
File SizeFormat 
8013682.pdf3.75 MBAdobe PDF
Title: A Numerical Matrix-Based Method for Stability and Power Quality Studies Based on Harmonic Transfer Functions
Authors: Mohammad Kazem Bakhshizadeh;Frede Blaabjerg;Jesper Hjerrild;Xiongfei Wang;&x0141;ukasz Kocewiak;Claus Leth Bak
Year: 2017
Publisher: IEEE
Abstract: Some couplings exist between the positive- and negative-sequence impedances of a voltage-sourced power converter especially in the low frequency range due to the nonlinearities and low-bandwidth control loops such as the phase-locked loop. In this paper, a new numerical method based on the harmonic transfer function for analysis of the linear time periodic systems is presented, which is able to handle these couplings. In a balanced three-phase system, there is only one coupling term, but in an unbalanced (asymmetrical) system, there are more couplings, and therefore, in order to study the interactions between these couplings a matrix-based method should be used. No information about the structure of the converter is needed and elements are modeled as black boxes with known terminal characteristics. The proposed method is applicable for both power quality (harmonic and interharmonic emissions) and stability studies, which is verified by simulations in this paper.
URI: http://localhost/handle/Hannan/212052
volume: 5
issue: 4
More Information: 1542,
1552
Appears in Collections:2017

Files in This Item:
File SizeFormat 
8013682.pdf3.75 MBAdobe PDF