Electric Distribution Protection Problems Associated with the Interconnection of Small Dispersed Generation Devices

Dugan,; Rizy,

doi:10.1109/mper.1984.5526073

Cited by 9 publications

(12 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The ground relay/recloser settings are derived by solving the above formulated optimization problem in (4)(5)(6)(7)(8)(9)(10)(11)(12), based on the ground fault cases stored in the fault case packages. The results of the ground relay/recloser settings are listed in Table V.…”

Section: Saving Schemementioning

confidence: 99%

See 1 more Smart Citation

Methodology of Automated Protection Analysis for Large Distribution Feeders With High Penetration of Photovoltaic Systems

Tang

2017

IEEE Power Energy Technol. Syst. J.

View full text Add to dashboard Cite

This paper presents highly automated methods to study the protective device coordination in large distribution systems with high penetration of distributed photovoltaic (PV) generation. A real distribution feeder with large-scale distributed PV generation has been modeled and verified using the analysis tool OpenDSS and utilizing extensive field measurements. With the accurate and validated feeder model, thorough protection coordination of the system is investigated by applying all the possible phase and ground faults under various scenarios. Under varying PV penetration levels and with different PV interface transformer connections, settings for the phase and ground relay and recloser are verified/defined such that proper coordination is achieved for the entire feeder under all operating conditions, corresponding to both fuse-clearing and fuse-saving schemes. An optimization-based design of protective devices is introduced that ensures proper protection coordination under thousands of possible fault cases. The automated protection analysis has been implemented using OpenDSS with MATLAB COM interface, and this approach and tools can be extended to analyze and design protection coordination of any large distribution feeder, as well as to use as a screening tool while evaluating large scale PV on distribution feeders.

show abstract

Section: Saving Schemementioning

confidence: 99%

“…Topics on the potential loss of the protection coordination due to PV impacts have been frequently visited in literature [4][5][6]. For the existing coordinated fuses, fault contributions from upstream PV systems could increase the minimum and maximum fault currents seen by the fuses.…”

Section: Introductionmentioning

confidence: 99%

Methodology of Automated Protection Analysis for Large Distribution Feeders With High Penetration of Photovoltaic Systems

Tang

2017

IEEE Power Energy Technol. Syst. J.

View full text Add to dashboard Cite

show abstract

“…It is important to remember that the utility objective is to maintain the load supply as long as possible, but the independent generator aims to protect its equipment from damage caused by the external system, so they must reach an agreement in questions related to low frequency/load curtailment situations or reclosing operations. The simulator described in the section III makes the simulation of several fault conditions and the verification of the coordination among overcurrent relays and/or fuses easier [7], [8].…”

Section: Protection Coordination Fundamentalmentioning

confidence: 99%

Protective Relaying Scheme of Distributed Generation Connected Radial Distribution System

Matcha¹,

Papani²,

Killamsetti³

2013

IJEPE

View full text Add to dashboard Cite

This paper discusses some aspects related to the connection of distributed generators to radial distribution systems, especially their impact on the protection coordination. Penetration of a DG into an existing distribution system has many impacts on the system, with the power system protection being one of the major issues. The relays in the power system have to be coordinated so as to avoid mal-operation and unnecessary outage of healthy part of the system. In this paper, Overcurrent relay coordination of simple radial industrial power plant is presented using NEPLAN Software. It presents the short circuit analysis of radial industrial power plant. This paper shows the star view of relays which is unique feature of NEPLAN for coordinating them correctly based upon recorded data of industrial distribution plant for calculating short circuit currents in industrial power system. Results obtained are verified by manual calculation.

show abstract

“…These may reflect adversely to critical operational factors in the electric grid such as frequency, voltage [5][6][7][8][9][10][11][12][13][14][15][16], and reactive power control [17]. Power production close to the end user may affect the power systems' quality, reliability, efficiency, and operational reliability in different ways.…”

Section: Introductionmentioning

confidence: 99%

Alternative ways for voltage control in smart grids with distributed electricity generation

Niemi

Lund

2011

Int. J. Energy Res.

View full text Add to dashboard Cite

SUMMARY In this paper, we have studied different strategies for managing voltage fluctuations in distribution networks originating from decentralized electricity generation systems (DEGS) or increased loads, which are highly important issues in the smart grid context. A starting point for system design when increasing load or local power production could be to limit the voltage fluctuations to ±5% from nominal voltage. Strategies to regulate voltage include cable improvement, transformer management, Demand side management, storage, and line interconnection. We present a mathematical model applicable for both a static and dynamic analysis to quantify effects from these measures, though the best solution will depend on local conditions and needs to be determined case by case. Combining several voltage control options simultaneously may lead to further positive effects. Strategies when doubling the load and increasing DEGS production to twice the electricity demand were analyzed here in detail. It also needs to be pointed out that other factors related to power quality besides voltage may need consideration when large amounts of DEGS are integrated to distribution networks. Copyright © 2011 John Wiley & Sons, Ltd.

show abstract

Electric Distribution Protection Problems Associated with the Interconnection of Small Dispersed Generation Devices

Cited by 9 publications

References 1 publication

Methodology of Automated Protection Analysis for Large Distribution Feeders With High Penetration of Photovoltaic Systems

Methodology of Automated Protection Analysis for Large Distribution Feeders With High Penetration of Photovoltaic Systems

Protective Relaying Scheme of Distributed Generation Connected Radial Distribution System

Alternative ways for voltage control in smart grids with distributed electricity generation

Contact Info

Product

Resources

About