Protection of distributed generation connected distribution system

Vijeta, K.; Sarma, D. V. S. S. Siva

doi:10.1109/apcet.2012.6302064

Cited by 12 publications

(7 citation statements)

References 4 publications

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“…Where, Q Lj is the reactive power absorbed by the load at bus j, Q Loss, i is the downstream loss of the bus i, Q DGj is the reactive power absorbed or injected by the DGs at bus j [7]. (5) and (6) shows the expression for power losses. ( (10) Where I j (max) is the maximum branch current restriction of line section between buses i and j [8].…”

Section: (4)mentioning

confidence: 99%

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Penetration effects of various kinds of distributed generation systems on the distribution system

Amandeep¹,

Yadav²,

Singh³

2019

IJITEE

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Distributed generation system penetration in the existing distribution system is done for minimizing the losses and improving the voltage profile. There are total five types of distributed generation systems exist based on their power delivery like distributed generation system injecting real and reactive power, supplying real power only, supplying reactive power only, absorbing reactive power only , supplying real power and absorbing reactive power. All these five types of distributed generation systems have different penetration effects on the radial distribution system. We get different voltage profiles and power losses for different types of distributed generation systems. The testing of these five types of distributed generation systems will be done on IEEE 33 bus radial distribution system. For computing, the line parameters and power losses of the above testing system the forward-backward sweep load flow method will be applied

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Section: (4)mentioning

confidence: 99%

“…DG IV will be working on zero PF and its example is synchronous compensators. DG V will be working on zero PF and its example is a synchronous condenser [6]. Power expressions for various kinds of DGs are shown in table 1.…”

Section: Introductionmentioning

confidence: 99%

Penetration effects of various kinds of distributed generation systems on the distribution system

Amandeep¹,

Yadav²,

Singh³

2019

IJITEE

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“…The protection challenges and solutions for distributed generation penetration in distribution system are studied in many kinds of literatures [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]. The relays using overcurrent relays and fuses for re-coordination are extensively well-discussed and covered.…”

Section: Introductionmentioning

confidence: 99%

Developing three‐dimensional‐phase surface‐based wide area protection centre in a smart grid with renewable resources

Eissa

2019

IET Energy Systems Integration

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The complexity of interconnection modern power systems has made them more subject to wide area disturbances that have contributed to several failures of system protection that operate as a standalone and with the multi-zones operation. The high penetration of doubly-fed-induction-generator wind farms in power grid has a negative impact on the operation of the modern system protection while the sensing components of the current signals decay rapidly due to the high crowbar resistance during fault events. Such cases can drop the relays that operate in standalone mode and depend on the current magnitude only. Standalone relays are not a proper solution for the future of protecting large-scale interconnected grid. Wide area monitoring has been developed to enhance the protection schemes but unfortunately it is limited to backup protection application and also work in standalone mode. More than 70% of the wide area disturbances are caused by relay mal-operation due to protection settings and miss-coordination. The concept of the idea does not depend on the short-circuit current magnitude and operates as one-zone. The developed idea is based on describing the dynamic operation of the lines before and after the faults using differential-equations. The differential equations are solved through orbits movement in a phase-diagram.

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“…A distribution network using NEPLAN® software with wind turbines as sources of DG has been simulated in [66]. The authors modeled wind turbines using induction generators.…”

Section: Overcurrent Protectionmentioning

confidence: 99%

A Comprehensive Review of Protection Schemes for Distributed Generation

Shahzad¹,

Asgarpoor²

2017

EPE

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Due to the increasing demand of energy and the need for nonconventional energy sources, distributed generation (DG) has come into play. The trend of unidirectional power flow has been gradually shifting. With new technology comes new challenges, the introduction of DG into the conventional power system brings various challenges; one of the major challenges is system protection under DG sources. These sources pose a significant challenge due to bidirectional flows from DGs as well as lower fault current contribution from inverter interfaced DGs. This paper reviews existing protection schemes that have been suggested for active distribution networks. Most of these protection strategies apply only to smaller distribution systems implying that they may need to be extended to larger systems with a much higher penetration of distributed generation. In the end, a potential protection scheme has also been recommended as a future work.

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Protection of distributed generation connected distribution system

Cited by 12 publications

References 4 publications

Penetration effects of various kinds of distributed generation systems on the distribution system

Penetration effects of various kinds of distributed generation systems on the distribution system

Developing three‐dimensional‐phase surface‐based wide area protection centre in a smart grid with renewable resources

A Comprehensive Review of Protection Schemes for Distributed Generation

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