Dynamic behavior of transformerless PV system on the short-term voltage stability of distribution network

Monirul Islam; Mithulananthan Nadarajah; M. J. Hossain

doi:10.1109/PESGM.2017.8274009

Dynamic behavior of transformerless PV system on the short-term voltage stability of distribution network

Monirul Islam, Mithulananthan Nadarajah, M. J. Hossain

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

10 Citations (Scopus)

Abstract

Recently, transformerless (TL) inverters are being extensively used in small-scale photovoltaic (PV) systems due to their compact size, lighter weight and higher efficiency. However, the growing penetrations of inverter-based distributed generation to low-voltage distribution networks (DNs) can cause short-term voltage instability. This paper investigates the effect of dynamic behaviors of TL-PV inverters on the short-term voltage stability (STVS) of DNs with high-penetration of TL-PV units. Firstly, the detail-modelling of the TL inverter is derived, and control strategies for low voltage ride through (LVRT) and dynamic voltage support (DVS) are developed. Next, the impacts of LVRT capability of TL-PV inverter on the STVS are explored. It is observed that LVRT capability of TL-PV inverters can prevent voltage collapse in distribution systems. Moreover, two countermeasures are applied to the TL-PV system to analyze the STVS. One of them is its DVS capability and the other is the different level of reactive power injection by the TL inverter. Several case studies are carried out on an IEEE 4 bus system for different scenarios. The results show that DVS can further improve STVS in low-voltage DNs. On the other hand, different level of reactive power injections might have less impact on the STVS.

Original language	English
Title of host publication	2017 IEEE Power and Energy Society General Meeting
Place of Publication	Piscataway, NJ
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	1-5
Number of pages	5
ISBN (Electronic)	9781538622124, 9781538622117
ISBN (Print)	9781538622131
DOIs	https://doi.org/10.1109/PESGM.2017.8274009
Publication status	Published - 2017
Event	2017 IEEE Power and Energy Society General Meeting, PESGM 2017 - Chicago, United States Duration: 16 Jul 2017 → 20 Jul 2017

Conference

Conference	2017 IEEE Power and Energy Society General Meeting, PESGM 2017
Country/Territory	United States
City	Chicago
Period	16/07/17 → 20/07/17

Access to Document

10.1109/PESGM.2017.8274009

Cite this

@inproceedings{026852827d3e40af8002983f234e7259,

title = "Dynamic behavior of transformerless PV system on the short-term voltage stability of distribution network",

abstract = "Recently, transformerless (TL) inverters are being extensively used in small-scale photovoltaic (PV) systems due to their compact size, lighter weight and higher efficiency. However, the growing penetrations of inverter-based distributed generation to low-voltage distribution networks (DNs) can cause short-term voltage instability. This paper investigates the effect of dynamic behaviors of TL-PV inverters on the short-term voltage stability (STVS) of DNs with high-penetration of TL-PV units. Firstly, the detail-modelling of the TL inverter is derived, and control strategies for low voltage ride through (LVRT) and dynamic voltage support (DVS) are developed. Next, the impacts of LVRT capability of TL-PV inverter on the STVS are explored. It is observed that LVRT capability of TL-PV inverters can prevent voltage collapse in distribution systems. Moreover, two countermeasures are applied to the TL-PV system to analyze the STVS. One of them is its DVS capability and the other is the different level of reactive power injection by the TL inverter. Several case studies are carried out on an IEEE 4 bus system for different scenarios. The results show that DVS can further improve STVS in low-voltage DNs. On the other hand, different level of reactive power injections might have less impact on the STVS.",

author = "Monirul Islam and Mithulananthan Nadarajah and Hossain, {M. J.}",

year = "2017",

doi = "10.1109/PESGM.2017.8274009",

language = "English",

isbn = "9781538622131",

pages = "1--5",

booktitle = "2017 IEEE Power and Energy Society General Meeting",

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

address = "United States",

note = "2017 IEEE Power and Energy Society General Meeting, PESGM 2017 ; Conference date: 16-07-2017 Through 20-07-2017",

}

Islam, M, Nadarajah, M & Hossain, MJ 2017, Dynamic behavior of transformerless PV system on the short-term voltage stability of distribution network. in 2017 IEEE Power and Energy Society General Meeting. Institute of Electrical and Electronics Engineers (IEEE), Piscataway, NJ, pp. 1-5, 2017 IEEE Power and Energy Society General Meeting, PESGM 2017, Chicago, United States, 16/07/17. https://doi.org/10.1109/PESGM.2017.8274009

Dynamic behavior of transformerless PV system on the short-term voltage stability of distribution network. / Islam, Monirul; Nadarajah, Mithulananthan; Hossain, M. J.
2017 IEEE Power and Energy Society General Meeting. Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE), 2017. p. 1-5.

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

TY - GEN

T1 - Dynamic behavior of transformerless PV system on the short-term voltage stability of distribution network

AU - Islam, Monirul

AU - Nadarajah, Mithulananthan

AU - Hossain, M. J.

PY - 2017

Y1 - 2017

N2 - Recently, transformerless (TL) inverters are being extensively used in small-scale photovoltaic (PV) systems due to their compact size, lighter weight and higher efficiency. However, the growing penetrations of inverter-based distributed generation to low-voltage distribution networks (DNs) can cause short-term voltage instability. This paper investigates the effect of dynamic behaviors of TL-PV inverters on the short-term voltage stability (STVS) of DNs with high-penetration of TL-PV units. Firstly, the detail-modelling of the TL inverter is derived, and control strategies for low voltage ride through (LVRT) and dynamic voltage support (DVS) are developed. Next, the impacts of LVRT capability of TL-PV inverter on the STVS are explored. It is observed that LVRT capability of TL-PV inverters can prevent voltage collapse in distribution systems. Moreover, two countermeasures are applied to the TL-PV system to analyze the STVS. One of them is its DVS capability and the other is the different level of reactive power injection by the TL inverter. Several case studies are carried out on an IEEE 4 bus system for different scenarios. The results show that DVS can further improve STVS in low-voltage DNs. On the other hand, different level of reactive power injections might have less impact on the STVS.

AB - Recently, transformerless (TL) inverters are being extensively used in small-scale photovoltaic (PV) systems due to their compact size, lighter weight and higher efficiency. However, the growing penetrations of inverter-based distributed generation to low-voltage distribution networks (DNs) can cause short-term voltage instability. This paper investigates the effect of dynamic behaviors of TL-PV inverters on the short-term voltage stability (STVS) of DNs with high-penetration of TL-PV units. Firstly, the detail-modelling of the TL inverter is derived, and control strategies for low voltage ride through (LVRT) and dynamic voltage support (DVS) are developed. Next, the impacts of LVRT capability of TL-PV inverter on the STVS are explored. It is observed that LVRT capability of TL-PV inverters can prevent voltage collapse in distribution systems. Moreover, two countermeasures are applied to the TL-PV system to analyze the STVS. One of them is its DVS capability and the other is the different level of reactive power injection by the TL inverter. Several case studies are carried out on an IEEE 4 bus system for different scenarios. The results show that DVS can further improve STVS in low-voltage DNs. On the other hand, different level of reactive power injections might have less impact on the STVS.

UR - http://www.scopus.com/inward/record.url?scp=85046349646&partnerID=8YFLogxK

U2 - 10.1109/PESGM.2017.8274009

DO - 10.1109/PESGM.2017.8274009

M3 - Conference proceeding contribution

AN - SCOPUS:85046349646

SN - 9781538622131

SP - 1

EP - 5

BT - 2017 IEEE Power and Energy Society General Meeting

PB - Institute of Electrical and Electronics Engineers (IEEE)

CY - Piscataway, NJ

T2 - 2017 IEEE Power and Energy Society General Meeting, PESGM 2017

Y2 - 16 July 2017 through 20 July 2017

ER -

Dynamic behavior of transformerless PV system on the short-term voltage stability of distribution network

Abstract

Conference

Access to Document

Other files and links

Fingerprint

Cite this