Voltage impacts from distributed photovoltaics on two distribution feeders

Rylander, Matthew; Smith, Jeff; Lewis, Dexter; Steffel, Steve

doi:10.1109/pesmg.2013.6672320

Cited by 30 publications

(14 citation statements)

References 2 publications

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“…Moreover, general aspects of the hosting capacity calculations have also been discussed, such as performance indices, limits, and calculation methods. Those aspects are discussed in relation to other phenomena as well (overcurrent, voltage unbalance, harmonic, among others) [4,10,11,13,14,[18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37].…”

Section: Introductionmentioning

confidence: 99%

The Concept of Dynamic Hosting Capacity for Distributed Energy Resources: Analytics and Practical Considerations

et al. 2019

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The hosting capacity approach is presented as a planning, improving, and communication tool for electrical distribution systems operating under specific uncertainties, such as power quality issues, power stabilities, and reliability, among others. In other words, it is an important technique, when renewable sources are present, to answer the amount of power that is possible to supply to the system without trespassing power performance limits. However, the power flow in a distribution system, for instance, can change throughout time due to the penetration of distributed generation, as well as load consumption. Based on the dynamic nature existing in distribution grids nowadays, it is important to highlight that the hosting capacity should not be calculated in a specifically chosen time only, but must be analyzed throughout a period of time. Thus, this paper introduces an extended concept of hosting capacity in relation to an integrated impact of harmonic voltage distortion and voltage rise as a function of time for daily, weekly, monthly, or even yearly periods. This extended concept is named as Dynamic Hosting Capacity (DHC(t)). General aspects of DHC(t) are demonstrated via measured data on a photovoltaic system (PV) connected at a low-voltage (LV) side of a university building.

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Section: Introductionmentioning

confidence: 99%

The Concept of Dynamic Hosting Capacity for Distributed Energy Resources: Analytics and Practical Considerations

et al. 2019

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“…Maximum PV capacity limits varying from 5% to 50% of the peak load of the feeder have been suggested in the literature (Whitaker et al 2008). The hosting capacity limits of two feeders of similar voltage class and peak load can range from 3% to 62.5% (Rylander et al 2013). Also, the hosting capacity limits vary with regard to size and placement of PV in the distribution grid (Reno et al 2014).…”

Section: Reactive Power (Var Kvar Mvar)mentioning

confidence: 99%

“…Also, the hosting capacity limits vary with regard to size and placement of PV in the distribution grid (Reno et al 2014). Therefore, it is speculated that fixing a limit universally on the hosting capacity limit of feeders can over-or underestimate the capacity of a feeder (Rylander et al 2013).…”

Section: Reactive Power (Var Kvar Mvar)mentioning

confidence: 99%

“…Although critical inferences can be derived from the field study, detailed analyses of the implications of future PV deployments in the grid have been obtained from advanced simulation studies (McGranaghan et al 2008;Liu et al 2008;Quiroz, Reno, and Broderick 2013;Rylander et al 2013;Aramizu and Vieira 2013;Ravindra et al 2012). Various impacts on the grid due to high PV penetration are brought out in (McGranaghan et al 2008).…”

Section: Regulatormentioning

confidence: 99%

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On the Path to SunShot - Emerging Issues and Challenges with Integrating High Levels of Solar into the Distribution System

Palminitier¹,

Broderick²,

Mather³

et al. 2016

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The U.S. Department of Energy launched the SunShot Initiative in 2011 with the goal of making solar electricity cost-competitive with conventionally generated electricity by 2020. At the time this meant reducing photovoltaic and concentrating solar power prices by approximately 75%relative to 2010 costs-across the residential, commercial, and utility-scale sectors. To examine the implications of this ambitious goal, the Department of Energy's Solar Energy Technologies Office (SETO) published the SunShot Vision Study in 2012. The study projected that achieving the SunShot price-reduction targets could result in solar meeting roughly 14% of U.S. electricity demand by 2030 and 27% by 2050-while reducing fossil fuel use, cutting emissions of greenhouse gases and other pollutants, creating solar-related jobs, and lowering consumer electricity bills. The SunShot Vision Study also acknowledged, however, that realizing the solar price and deployment targets would face a number of challenges. Both evolutionary and revolutionary technological changes would be required to hit the cost targets, as well as the capacity to manufacture these improved technologies at scale in the U.S. Additionally, operating the U.S. transmission and distribution grids with increasing quantities of solar energy would require advances in grid-integration technologies and techniques. Serious consideration would also have to be given to solar siting, regulation, and water use. Finally, substantial new financial resources and strategies would need to be directed toward solar deployment of this magnitude in a relatively short period of time. Still the study suggested that the resources required to overcome these challenges were well within the capabilities of the public and private sectors. SunShot-level price reductions, the study concluded, could accelerate the evolution toward a cleaner, more costeffective and more secure U.S. energy system. That was the assessment in 2012. Today, at the halfway mark to the SunShot Initiative's 2020 target date, it is a good time to take stock: How much progress has been made? What have we learned? What barriers and opportunities must still be addressed to ensure that solar technologies achieve cost parity in 2020 and realize their full potential in the decades beyond? To answer these questions, SETO launched the On the Path to SunShot series in early 2015 in collaboration with the National Renewable Energy Laboratory (NREL) and with contributions from Lawrence Berkeley National Laboratory (LBNL), Sandia National Laboratories (SNL), and Argonne National Laboratory (ANL). The series of technical reports focuses on the areas of grid integration, technology improvements, finance and policy evolution, and environment impacts and benefits. The resulting reports examine key topics that must be addressed to achieve the SunShot Initiative's price-reduction and deployment goals. The On the Path to SunShot series includes the following reports: • Emerging Issues and Challenges with Integrating High Levels of Solar into the ...

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“…1. These detailed PV studies have been performed at the Electric Power Research Institute (EPRI) for over 30 unique feeders [5,6]. Each feeder has been modelled from the substation down to the end-user.…”

Section: Introductionmentioning

confidence: 99%

Streamlined Method for Determining Distribution System Hosting Capacity

Rylander

Smith

Sunderman

2015

2015 IEEE Rural Electric Power Conference

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This document outlines the methodology of a streamlined analysis to determine the amount of photovoltaics that can be accommodated on a distribution feeder before adverse impacts occur (commonly termed hosting capacity). The solution can effectively be used in screening new interconnection requests as well as to estimate how much and where PV can be located such that grid upgrades are minimized. The method is being implemented in commercial distribution system analysis tools where it can be applied system-wide or on individual feeders. The streamlined analysis of an individual feeder would take in the order of minutes compared to hours for a detailed analysis. Application of the results include improved screening tools, visualization of hosting capacity constrained feeders, and identification of problematic locations within a feeder. Speed and accuracy are mandatory, thus the methodology has been compared and validated to detailed analyses.

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Voltage impacts from distributed photovoltaics on two distribution feeders

Cited by 30 publications

References 2 publications

The Concept of Dynamic Hosting Capacity for Distributed Energy Resources: Analytics and Practical Considerations

The Concept of Dynamic Hosting Capacity for Distributed Energy Resources: Analytics and Practical Considerations

On the Path to SunShot - Emerging Issues and Challenges with Integrating High Levels of Solar into the Distribution System

Streamlined Method for Determining Distribution System Hosting Capacity

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