An approach for assessing high-penetration PV impact on distribution feeders

Ebad, Mehdi; Grady, W.M.

doi:10.1016/j.epsr.2015.12.026

Cited by 67 publications

(34 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…There is no PVGs at bus 2 as its voltage is nearly constant and the voltage drop between bus 2 and the substation transformer is acceptable. The PV penetration 31 in this study approaches the value of 82%. The distribution system is simulated at different test cases as listed in Table 2 to check the proposed control method and to validate the model with the given load flow results.…”

Section: Simulation Of the Test Feedermentioning

confidence: 52%

Voltage control of unbalanced three-phase networks using reactive power capability of distributed single-phase PV generators

Eid

Abdel‐Akher

2017

Int Trans Electr Energ Syst

View full text Add to dashboard Cite

Summary In this paper, a developed voltage control method for distributed single‐phase photovoltaic (PV) generators in unbalanced distribution networks is proposed. The reactive power capability of the PV inverters has been used to regulate bus voltages during irradiance or load variations. The amount of the reactive power required to optimize phase voltages is calculated using fuzzy logic control function, and hence, the power factor is precisely determined. The proposed control for the PV inverters is based on the dq‐current control to regulate the DC bus voltage and the amount of the reactive power. A hysteresis current control is used as a pulse width modulation gate generator. The proposed control precisely determines the amount of the required reactive power to regulate the system bus voltages to lie within standard limits. The efficiency of the proposed control is evaluated with a 10‐node, 5 kV/phase unbalanced three phase distribution system. The analysis includes different test cases under transient and steady state operations to ensure accurate representation of the actual system. The obtained results assess the quality of the network voltages of the studied system regarding voltage levels and the degree of the unbalance. Moreover, the proposed control is capable of operation under different power factors of the PV inverter.

show abstract

Section: Simulation Of the Test Feedermentioning

confidence: 52%

Voltage control of unbalanced three-phase networks using reactive power capability of distributed single-phase PV generators

Eid

Abdel‐Akher

2017

Int Trans Electr Energ Syst

View full text Add to dashboard Cite

show abstract

“…We also define an irradiance proxy measurement as φt. 1 We assume there are N households with solar generation and we define the customer load at each household i time t as L i t . We model the solar generation S i t using the irradiance proxy measurement φt.…”

Section: Methodsmentioning

confidence: 99%

“…The location of loads and generation within a distribution network plays a crucial role [1]. The effect of PV generation on feeder operations vary widely, and can be either positive or negative depending on feeder topology, climate, and the timing of other connected loads [2,3].…”

Section: Introductionmentioning

confidence: 99%

Estimating Behind-the-meter Solar Generation with Existing Measurement Infrastructure

Kara

Tabone

Roberts

et al. 2016

Proceedings of the 3rd ACM International Conference on Systems for Energy-Efficient Built Environments

View full text Add to dashboard Cite

Real-time PV generation information is crucial for distribution system operations, in particular for switching operations, state-estimation, and management of the voltage at the point of provision. However, most behind-the-meter solar installations are not monitored. Typically, the only information available to the distribution system operator is the installed capacity. Our main purpose in this study is to estimate behind-the-meter PV generation using data from smart meters.

show abstract

“…e opposite is true when the sky shows transitions from cloudy to sunny conditions. e authors have explained this phenomenon by associating it with ambient temperature, i.e., as the sky shows transitions [59, 74-76, 78, 81, 84, 86-88, 94, 96, 99, 100, 107, 109, 110, 122, 123, 128, 129, 153, 155, 168, 171, 174, 176, 183, 187, 188, 200, 213, 214, 230, 235] Effect of system strength (R/X ratio) [155,177,234] Impact of PV on voltage swell/sag [145,169,170,194,211] Effects of cloud movements, cloud pattern, or shading [19,27,59,61,64,67,75,86,96,99,100,107,109,131,146,160,178,215,218,224,240,242,243,258] from sunny to cloudy, both solar irradiance and temperature decrease. A decrease in irradiance decreases the output power of PVs, but temperature drop has an inverse effect.…”

Section: Fast Changes In Powermentioning

confidence: 99%

Impact of Rooftop Photovoltaics on the Distribution System

Alboaouh

Mohagheghi

2020

Journal of Renewable Energy

View full text Add to dashboard Cite

This paper presents a review of the impact of rooftop photovoltaic (PV) panels on the distribution grid. This includes how rooftop PVs affect voltage quality, power losses, and the operation of other voltage-regulating devices in the system. A historical background and a classification of the most relevant publications are presented along with the review of the important lessons learned. It has been widely believed that high penetration levels of PVs in the distribution grid can potentially cause problems for node voltages or overhead line flows. However, it is shown in the literature that proper control of the PV resource using smart inverters can alleviate many of those issues, hence paving the way for higher PV penetration levels in the grid.

show abstract

An approach for assessing high-penetration PV impact on distribution feeders

Cited by 67 publications

References 13 publications

Voltage control of unbalanced three-phase networks using reactive power capability of distributed single-phase PV generators

Voltage control of unbalanced three-phase networks using reactive power capability of distributed single-phase PV generators

Estimating Behind-the-meter Solar Generation with Existing Measurement Infrastructure

Impact of Rooftop Photovoltaics on the Distribution System

Contact Info

Product

Resources

About