Proceedings ArticleDOI
Determination of maximum PV solar system connectivity in a utility distribution feeder
Rajiv K. Varma,Jon Berge,Iurie Axente,Vinay Sharma,Ken Walsh +4 more
- pp 1-8
TLDR
In this article, the maximum amount of PV solar generation that can be connected in a 27.6 kV feeder of a distribution utility - London Hydro -was investigated for various factors such as steady state voltage rise, Temporary Over Voltage (TOV), short circuit current and harmonic contributions, that could potentially constrain DG connectivity.Abstract:
This paper presents a study for determining the maximum amount of PV solar generation that can be connected in a 27.6 kV feeder of a distribution utility - London Hydro. Various factors such as steady state voltage rise, Temporary Over Voltage (TOV), short circuit current and harmonic contributions, that could potentially constrain DG connectivity are investigated. Load flow studies with PSS/E and electromagnetic transient simulation studies with EMTDC/PSCAD software are utilized for performing the above investigations. It is shown that harmonic amplification due to network resonance could potentially be the limiting factor for PV solar connectivity in this distribution feeder. This paper also makes a case that the conventional Connection Impact Assessment (CIA) studies for DG connections need to be made broader to include such harmonic aspects.read more
Citations
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Journal ArticleDOI
Harmonic Impact of a 20-MW PV Solar Farm on a Utility Distribution Network
TL;DR: In this paper, the harmonic impact of a large PV solar farm of 20MW in a utility distribution system is analyzed using the commercial grade PSCAD/EMTDC software, which is validated through load flow studies conducted by CYME software and correlated with SCADA measurements.
Journal ArticleDOI
Method for Determining a PV Generation Limit on Low Voltage Feeders for Evenly Distributed PV and Load
TL;DR: In this paper, a method for assessing the maximum allowable PV generation on low voltage feeders is presented, which identifies a relationship between load, total feeder impedance, terminal count and PV generation at which the upper voltage limit for the line is breached.
Proceedings ArticleDOI
Characterization of harmonics in a utility feeder with PV distributed generation
TL;DR: In this article, a thorough analysis of the harmonic characteristics of a feeder in the London Hydro distribution system is presented, which interconnects several solar photovoltaic (PV) arrays as well as two shunt capacitor banks.
Journal ArticleDOI
Variable frequency response testbed to validate protective relays up to 20 kHz
TL;DR: A frequency response method and testbed for high-frequency currents of up to 20.16 kHz for two overcurrent relays was developed and tested and validated the variable frequency testbed and methodology.
References
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Journal ArticleDOI
Summary of Distributed Resources Impact on Power Delivery Systems
TL;DR: Several system issues which may be encountered as DR penetrates into distribution systems are discussed, including vulnerability and overvoltages due to islanding and coordination with reclosing, system restoration and network issues.
Journal ArticleDOI
Solar PV Integration Challenges
K F Katiraei,Julio Romero Aguero +1 more
TL;DR: In this article, the authors describe the deployment of large PV plants with capacities in the order of several megavoltamperes (MVAs) that are owned either by the utility or by private power producers.
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Impact of widespread photovoltaics generation on distribution systems
Murray Thomson,David Infield +1 more
TL;DR: In this paper, the authors performed unbalanced three-phase load-flow analysis on an entire feeder within a time-domain simulation framework using load and generation data at 1 minute intervals.
Proceedings ArticleDOI
Distributed energy sources: technical challenges
TL;DR: In this article, the main related technical issues are discussed together with the DGs modelling requirements for their analysis, and the main technical issues of the micro-grid are discussed and discussed in detail.
Proceedings ArticleDOI
Harmonic impact of small photovoltaic systems connected to the LV distribution network
Ioulia T. Papaioannou,Aggelos S. Bouhouras,Antonios Marinopoulos,Minas C. Alexiadis,Charis S. Demoulias,Dimitris P. Labridis +5 more
TL;DR: In this paper, the harmonic impact of a 20 kWp photovoltaic (PV) system connected to the low voltage (LV) distribution network in Greece is investigated. But the analysis is limited to the case of a single PV plant, and the level of penetration of PV systems in the LV distribution network has not been investigated.