Effects of wide-area control on the protection and operation of distribution networks

Allen, Will

doi:10.1109/psamp.2009.5262330

Cited by 12 publications

(9 citation statements)

References 1 publication

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“…This has introduced a number of threats to distribution system protection including reverse power flows and the contribution of DG to fault currents. The nature of the threat varies with the relative position of the fault, the relay and the DG, but can include false tripping, and a loss of sensitivity or selectivity [57,58]. Also, high fault levels at the distribution level could allow fault currents to exceed those that can be safely interrupted by the available protection.…”

Section: Application Of Wap To Distribution Networkmentioning

confidence: 99%

“…automatic network reconfiguration that reduces the frequency and length of customer interruptions, manages circuit loading, and limits the fault level [57]. Adaptive control of the distribution network is becoming increasingly necessary to reduce barriers to DG, make best use of the installed DG and through this help to deliver a low carbon future.…”

Section: Application Of Wap To Distribution Networkmentioning

confidence: 99%

“…Adaptive control of the distribution network is becoming increasingly necessary to reduce barriers to DG, make best use of the installed DG and through this help to deliver a low carbon future. This adaptive control and other measures form part of a move toward the creation of active distribution networks [64] and existing protection is not compatible with many of these adaptive control measures [57].…”

Section: Application Of Wap To Distribution Networkmentioning

confidence: 99%

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Improving the performance of power system protection using wide area monitoring systems

Phadke

Wall

Ding

et al. 2016

J. Mod. Power Syst. Clean Energy

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Wide area monitoring (WAM) offers many opportunities to improve the performance of power system protection. This paper presents some of these opportunities and the motivation for their development. This methods include monitoring the suitability of relay characteristics, supervisory control of backup protection, more adaptive and intelligent system protection and the creation of novel system integrity protection scheme. The speed of response required for primary protection means that the role WAM in enhancing protection is limited to backup and system protection. The opportunities offered by WAM for enhancing protection are attractive because of the emerging challenges faced by the modern power system protection. The increasingly variable operating conditions of power systems are making it ever more difficult to select relay characteristics that will be a suitable compromise for all loading conditions and contingencies. The maloperation of relays has contributed to the inception and evolution of 70 % of blackouts, thus the supervision of the backup protection may prove a valuable tool for preventing or limiting the scale of blackouts. The increasing interconnection and complexity of modern power systems has made them more vulnerable to wide area disturbances and this has contributed to several recent blackouts. The proper management of these wide area disturbances is beyond the scope of most of the existing protection and new, adaptive system integrity protection schemes are needed to protect power system security.

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Section: Application Of Wap To Distribution Networkmentioning

confidence: 99%

Section: Application Of Wap To Distribution Networkmentioning

confidence: 99%

Section: Application Of Wap To Distribution Networkmentioning

confidence: 99%

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Improving the performance of power system protection using wide area monitoring systems

Phadke

Wall

Ding

et al. 2016

J. Mod. Power Syst. Clean Energy

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“…HE increasing penetration of distributed energy resources in power distribution networks will involve a substantial evolution in the operational practice of this part of the power network infrastructure (i.e., [1], [2]). The above issues will certainly call for a massive use of advanced and smarter monitoring tools capable of increasing, in principle, the operation reliability of these networks.…”

Section: Introductionmentioning

confidence: 99%

State estimation of Active Distribution Networks: Comparison between WLS and iterated kalman-filter algorithm integrating PMUs

Sarri

Paolone

Cherkaoui

et al. 2012

2012 3rd IEEE PES Innovative Smart Grid Technologies Europe (ISGT Europe)

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“…Paper [6] presented automatic network reconfiguration in recovering from electrical faults, providing load balancing, and assisting with voltage/V AR optimization. Paper [7] proposed a faulted element identification algorithm based on multisource information fusion for wide-area protection, and a fault identification encoding method based upon grid topology.…”

mentioning

confidence: 99%

Design and development of wide area protection and emergency control for application in distribution networks of embeded generation

Zhao

Huang

et al. 2015

2015 IEEE Power &Amp; Energy Society General Meeting

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The design and development of a wide area protection and emergency control system for application in distribution networks of embedded generation is presented in this paper. The system developed consists of a central unit, and one local unit at each substation of a distribution network. It integrates the functions of monitoring, protection and control. The main control function of the system is to detect whether there is any distribution network islanded from main grid after a power system fault. If it is islanded, as there are embedded generations in the islanded area, the frequency will shift from 50Hz. The system can shed load or trip excess generations to maintain the frequency near 50 Hz to keep the islanded area running, also to meet the synch check criteria for auto-closing an alternative grid stand by supply. The system monitors the real time information of currents, voltage and power of each circuit in the distribution network, also the topology of the network, it can make optimum decision for load shedding or generation tripping based on real time information of power flow of each circuit. With this system, the CB of the alternative standby grid supply can be auto-closed and grid supply can be restored to the islanded area quickly (less than 10s). Compared to the traditional control schemes (10 or 20 minutes restoration time), the new system will improve the supply reliability significantly. The system was installed in a distribution network of six 110 kV substations in October 2013, so far its performance is satisfactory.

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Effects of wide-area control on the protection and operation of distribution networks

Cited by 12 publications

References 1 publication

Improving the performance of power system protection using wide area monitoring systems

Improving the performance of power system protection using wide area monitoring systems

State estimation of Active Distribution Networks: Comparison between WLS and iterated kalman-filter algorithm integrating PMUs

Design and development of wide area protection and emergency control for application in distribution networks of embeded generation

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