Modeling of a Centralized Microgrid Protection System and Distributed Energy Resources According to IEC 61850-7-420

Ustun, Taha Selim; Ozansoy, Cagil; Zayegh, Aladin

doi:10.1109/tpwrs.2012.2185072

Cited by 282 publications

(129 citation statements)

References 23 publications

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“…This means that there are restricted locations where DGs can be placed in the network. A protection scheme based on a microgrid central protection unit using an Ethernet communication network is suggested in [50]. In this scheme, the micro grid central protection unit (MGCPU) receives interrupts to calculate and update the operating fault currents in the relays.…”

Section: Adaptive 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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Section: Adaptive Protectionmentioning

confidence: 99%

A Comprehensive Review of Protection Schemes for Distributed Generation

Shahzad¹,

Asgarpoor²

2017

EPE

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“…Excepting for the protective relays mentioned in Table 1, other available fault protection solutions of AC microgrids not using the above relays are reviewed in Table 2. Centralized/decentralized protection systems [32], [48], [49];…”

Section: 1mentioning

confidence: 99%

Available Fault Protection Methods of Ungrounded AC Microgrids Evaluated by Transient Simulation Results

Lien¹,

Bùi²,

Chang³

et al. 2016

IJCEE

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This paper evaluates fault protection methods of ungrounded low-voltage (LV) AC microgrids (MGs) based on transient simulation results of a typical ungrounded LVAC microgrid. By considering operation characteristics of ungrounded MGs and a literature review on existing MG fault protection solutions in recent years, possible fault protection methods are proposed for an ungrounded AC MG. Transient simulation results of an ungrounded AC MG are obtained by line-to-line (LL) and line-to-ground (LG) faults, and operation transition tests of the microgrid between autonomous and grid-connected operation modes. Based on the simulation results, advantages and disadvantages of each ungrounded microgrid protection solution are highlighted. In order to get the optimal fault protection, combinations among some or all of possible fault protection solutions of an ungrounded LVAC microgrid are found out. As a result, main contributions of the paper contain: (i) proposing and analysing available fault protection solutions of ungrounded LVAC MGs, (ii) doing the transient simulations of a typical ungrounded microgrid under different disturbance cases, and (iii) suggesting the necessary combinations among proposed fault protection solutions of ungrounded MGs.

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“…IEC 61850 was originally developed for implementing interoperability among different devices and systems of different vendors in substation, and it currently has been extended and applied in various fields of power system [28][29][30][31][32]. The necessity of implementing HAM based on IEC 61850 is described as follows: (1) with the performance and security, enabling integration of protection, control, measurement and other functions.…”

Section: Analysis On Necessity and Feasibilitymentioning

confidence: 99%

Hybrid Multi-Agent Control in Microgrids: Framework, Models and Implementations Based on IEC 61850

Dou

Quan

et al. 2014

Energies

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Operation control is a vital and complex issue for microgrids. The objective of this paper is to explore the practical means of applying decentralized control by using a multi agent system in actual microgrids and devices. This paper presents a hierarchical control framework (HCF) consisting of local reaction control (LRC) level, local decision control (LDC) level, horizontal cooperation control (HCC) level and vertical cooperation control (VCC) level to meet different control requirements of a microgrid. Then, a hybrid multi-agent control model (HAM) is proposed to implement HCF, and the properties, functionalities and operating rules of HAM are described. Furthermore, the paper elaborates on the implementation of HAM based on the IEC 61850 Standard, and proposes some new implementation methods, such as extended information models of IEC 61850 with agent communication language and bidirectional interaction mechanism of generic object oriented substation event (GOOSE) communication. A hardware design and software system are proposed and the results of simulation and laboratory tests verify the effectiveness of the proposed strategies, models and implementations. OPEN ACCESSEnergies 2015, 8 32

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Modeling of a Centralized Microgrid Protection System and Distributed Energy Resources According to IEC 61850-7-420

Cited by 282 publications

References 23 publications

A Comprehensive Review of Protection Schemes for Distributed Generation

A Comprehensive Review of Protection Schemes for Distributed Generation

Available Fault Protection Methods of Ungrounded AC Microgrids Evaluated by Transient Simulation Results

Hybrid Multi-Agent Control in Microgrids: Framework, Models and Implementations Based on IEC 61850

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