Stability issues of Z+Z or Y+Y type cascade system

Liu Fangcheng; Liu Jinjun; Zhang Haodong; Xue Danhong; Hasan Saad Ul; Zhou Linyuan

doi:10.1109/ECCE.2013.6646734

Stability issues of Z+Z or Y+Y type cascade system

Liu Fangcheng, Liu Jinjun, Zhang Haodong, Xue Danhong, Hasan Saad Ul, Zhou Linyuan

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

9 Citations (Scopus)

Abstract

The stability issues of cascade systems have been studied for many years. Impedance ratio type criterions in the form of Z_o/Z_i or Z_i/Z_o have been proposed to solve these stability issues. However, existing ratio type criterions still have problems in some cascade systems. Terminal characteristic of single module is studied and the different types of cascade system are defined in this paper. It can be seen that the validity of conventional impedance ratio type criterion would be influenced by the right half plane zeros (RHZ) in terminal impedance of each module in the Z+Z type cascade system. Two improved criteria are proposed for the Z+Z type cascade system: one is improved ratio type criterion considering the RHZ in terminal impedance of each module; another one is sum type criterion which doesn't need the information about RHZ in terminal impedance of each module. The experiment results prove the validity of these two improved criterions.

Original language	English
Title of host publication	2013 IEEE Energy Conversion Congress and Exposition
Place of Publication	Piscataway, NJ
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	434-441
Number of pages	8
ISBN (Electronic)	9781479903368
ISBN (Print)	9781479903351
DOIs	https://doi.org/10.1109/ECCE.2013.6646734
Publication status	Published - 2013
Externally published	Yes
Event	5th Annual IEEE Energy Conversion Congress and Exhibition, ECCE 2013 - Denver, CO, United States Duration: 15 Sep 2013 → 19 Sep 2013

Other

Other	5th Annual IEEE Energy Conversion Congress and Exhibition, ECCE 2013
Country/Territory	United States
City	Denver, CO
Period	15/09/13 → 19/09/13

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10.1109/ECCE.2013.6646734

Cite this

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title = "Stability issues of Z+Z or Y+Y type cascade system",

abstract = "The stability issues of cascade systems have been studied for many years. Impedance ratio type criterions in the form of Zo/Zi or Zi/Zo have been proposed to solve these stability issues. However, existing ratio type criterions still have problems in some cascade systems. Terminal characteristic of single module is studied and the different types of cascade system are defined in this paper. It can be seen that the validity of conventional impedance ratio type criterion would be influenced by the right half plane zeros (RHZ) in terminal impedance of each module in the Z+Z type cascade system. Two improved criteria are proposed for the Z+Z type cascade system: one is improved ratio type criterion considering the RHZ in terminal impedance of each module; another one is sum type criterion which doesn't need the information about RHZ in terminal impedance of each module. The experiment results prove the validity of these two improved criterions.",

author = "Liu Fangcheng and Liu Jinjun and Zhang Haodong and Xue Danhong and Ul, {Hasan Saad} and Zhou Linyuan",

year = "2013",

doi = "10.1109/ECCE.2013.6646734",

language = "English",

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pages = "434--441",

booktitle = "2013 IEEE Energy Conversion Congress and Exposition",

publisher = "Institute of Electrical and Electronics Engineers (IEEE)",

address = "United States",

note = "5th Annual IEEE Energy Conversion Congress and Exhibition, ECCE 2013 ; Conference date: 15-09-2013 Through 19-09-2013",

}

Fangcheng, L, Jinjun, L, Haodong, Z, Danhong, X, Ul, HS & Linyuan, Z 2013, Stability issues of Z+Z or Y+Y type cascade system. in 2013 IEEE Energy Conversion Congress and Exposition., 6646734, Institute of Electrical and Electronics Engineers (IEEE), Piscataway, NJ, pp. 434-441, 5th Annual IEEE Energy Conversion Congress and Exhibition, ECCE 2013, Denver, CO, United States, 15/09/13. https://doi.org/10.1109/ECCE.2013.6646734

Stability issues of Z+Z or Y+Y type cascade system. / Fangcheng, Liu; Jinjun, Liu; Haodong, Zhang et al.

2013 IEEE Energy Conversion Congress and Exposition. Piscataway, NJ : Institute of Electrical and Electronics Engineers (IEEE), 2013. p. 434-441 6646734.

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

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T1 - Stability issues of Z+Z or Y+Y type cascade system

AU - Fangcheng, Liu

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AU - Haodong, Zhang

AU - Danhong, Xue

AU - Ul, Hasan Saad

AU - Linyuan, Zhou

PY - 2013

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N2 - The stability issues of cascade systems have been studied for many years. Impedance ratio type criterions in the form of Zo/Zi or Zi/Zo have been proposed to solve these stability issues. However, existing ratio type criterions still have problems in some cascade systems. Terminal characteristic of single module is studied and the different types of cascade system are defined in this paper. It can be seen that the validity of conventional impedance ratio type criterion would be influenced by the right half plane zeros (RHZ) in terminal impedance of each module in the Z+Z type cascade system. Two improved criteria are proposed for the Z+Z type cascade system: one is improved ratio type criterion considering the RHZ in terminal impedance of each module; another one is sum type criterion which doesn't need the information about RHZ in terminal impedance of each module. The experiment results prove the validity of these two improved criterions.

AB - The stability issues of cascade systems have been studied for many years. Impedance ratio type criterions in the form of Zo/Zi or Zi/Zo have been proposed to solve these stability issues. However, existing ratio type criterions still have problems in some cascade systems. Terminal characteristic of single module is studied and the different types of cascade system are defined in this paper. It can be seen that the validity of conventional impedance ratio type criterion would be influenced by the right half plane zeros (RHZ) in terminal impedance of each module in the Z+Z type cascade system. Two improved criteria are proposed for the Z+Z type cascade system: one is improved ratio type criterion considering the RHZ in terminal impedance of each module; another one is sum type criterion which doesn't need the information about RHZ in terminal impedance of each module. The experiment results prove the validity of these two improved criterions.

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Stability issues of Z+Z or Y+Y type cascade system

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