Voltage stability enhancement for unbalanced multiphase distribution networks

Juanuwattanakul, P.; Masoum, Mohammad A. S.

doi:10.1109/pes.2011.6039044

Cited by 10 publications

(7 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This section starts with the definition and derivation of the conventional voltage ranking index (VRI) V/Vo using the two bus balanced network of Fig. 1 and continues to extend its application to multiphase networks using symmetrical components [21].…”

Section: Bus Ranking Of Multiphase Distribution Networkmentioning

confidence: 99%

“…The method of symmetrical components will then be applied to merge the three individual PV curves into a single PV curve based on the positive-sequence voltage. Finally, MLF will be determined using the single PV curve based on the positive-sequence voltage [21]. MLF is defined as the ratio of the maximum system load (at the voltage collapse point) to the base load.…”

Section: Impact Of Dg On Mlfmentioning

confidence: 99%

“…Therefore, to determine the voltage stability margins, the method of symmetrical components has been applied to merge the three PV curves to one PV curve based on the positive-sequence voltage. In addition, to extend and generalize the conventional definition of bus voltage ranking index for multiphase networks, symmetrical components are also applied to the three-phase voltages resulting from three-phase power flow [21].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Increasing distributed generation penetration in multiphase distribution networks considering grid losses, maximum loading factor and bus voltage limits

Juanuwattanakul

Masoum

2012

IET Gener. Transm. Distrib.

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Bus Ranking Of Multiphase Distribution Networkmentioning

confidence: 99%

Section: Impact Of Dg On Mlfmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Increasing distributed generation penetration in multiphase distribution networks considering grid losses, maximum loading factor and bus voltage limits

Juanuwattanakul

Masoum

2012

IET Gener. Transm. Distrib.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Without the direct control of utilities over the sizes and locations of customer-installed rooftop PVs, improper placement of PVs will affect different phases of a feeder such as unbalanced effect of voltage rise and reverse power flow [3][4]. Unbalanced operation of three-phase distribution networks can also influence induction motors and power electronic converters [5][6]. This paper proposes a probabilistic multi-objective methodology for assessing the amount of PV power that can be injected into the three-phase distribution network and the total energy losses of the lines taking into account active network management (ANM) schemes such as coordinated voltage control (CVC) and adaptive power factor control (PFC).…”

Section: Introductionmentioning

confidence: 99%

Probabilistic method for the operation of three‐phase unbalanced active distribution networks

Mokryani

Majumdar

Pal

2016

IET Renewable Power Generation

View full text Add to dashboard Cite

show abstract

“…Without the direct control of distribution utilities over the sizes and locations of customer-installed rooftop PV units, unbalanced allocation of PV resources will produce different level of impacts on different phases of a feeder, such as unbalanced impacts of voltage rise [3] and reverse power flow [4]. Unbalanced operation of networks can also affect induction motors, power electronic converters [5], and, may also decrease network voltage stability margins [6]. Medium voltage (MV) segments of distribution networks are typically constructed with 3-wire configuration whereas low voltage (LV) segments are constructed with 4-wire configuration, where the fourth wire is the neutral wire which is grounded at multiple locations along the feeder.…”

Section: Introductionmentioning

confidence: 99%

A Three-Phase Power Flow Approach for Integrated 3-Wire MV and 4-Wire Multigrounded LV Networks With Rooftop Solar PV

Alam

Muttaqi

Sutanto

2013

IEEE Trans. Power Syst.

102

View full text Add to dashboard Cite

With increasing level of rooftop solar photovoltaic (PV) penetration into low voltage (LV) distribution networks, analysis with realistic network models is necessary for adequate capturing of network behavior. Traditional three-phase 3-wire power flow approach lacks the capability of exact analysis of 4-wire multigrounded LV networks due to the approximation of merging the neutral wire admittance into the phase wire admittances. Such an approximation may not be desirable when neutral wire and grounding effects need to be assessed, especially in the presence of single-phase solar power injection that may cause a significant level of network unbalance. This paper proposes a three-phase power flow approach for distribution networks while preserving the original 3-wire and 4-wire configurations for more accurate estimation of rooftop PV impacts on different phases and neutrals. A three-phase transformer model is developed to interface between the 3-wire medium voltage (MV) and the 4-wire LV networks. Also an integrated network model is developed for an explicit representation of different phases, neutral wires and groundings of a distribution system. A series of power flow calculations have been performed using the proposed approach to investigate the impacts of single-phase variable PV generation on an Australian distribution system and results are presented. Abstract-With increasing level of rooftop solar PV penetration into LV distribution networks, analysis with realistic network models is necessary for adequate capturing of network behavior. Traditional three-phase 3-wire power flow approach lacks the capability of exact analysis of 4-wire multigrounded LV networks due to the approximation of merging the neutral wire admittance into the phase wire admittances. Such an approximation may not be desirable when neutral wire and grounding effects need to be assessed, especially in the presence of single-phase solar power injection that may cause a significant level of network unbalance. This paper proposes a three-phase power flow approach for distribution networks while preserving the original 3-wire and 4-wire configurations for more accurate estimation of rooftop PV impacts on different phases and neutrals. A three-phase transformer model is developed to interface between the 3-wire MV and the 4-wire LV networks. Also an integrated network model is developed for an explicit representation of different phases, neutral wires and groundings of a distribution system. A series of power flow calculations have been performed using the proposed approach to investigate the impacts of single-phase variable PV generation on an Australian distribution system and results are presented.Index Terms-Thee-phase distribution networks, 3-wire and 4-wire multigrounded systems, Three-phase power flow, Rooftop solar PV impacts.

show abstract

Voltage stability enhancement for unbalanced multiphase distribution networks

Cited by 10 publications

References 18 publications

Increasing distributed generation penetration in multiphase distribution networks considering grid losses, maximum loading factor and bus voltage limits

Increasing distributed generation penetration in multiphase distribution networks considering grid losses, maximum loading factor and bus voltage limits

Probabilistic method for the operation of three‐phase unbalanced active distribution networks

A Three-Phase Power Flow Approach for Integrated 3-Wire MV and 4-Wire Multigrounded LV Networks With Rooftop Solar PV

Contact Info

Product

Resources

About