Modern line current differential protection solutions

Miller, H.; Burger, John Robert; Fischer, Normann; Kasztenny, B.

doi:10.1109/cpre.2010.5469504

Cited by 74 publications

(39 citation statements)

References 1 publication

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“…In particular, we find that in the wide area, as Fuloria et al found within substations, that public-key based message authentication is too costly for too little benefit for almost all use cases. Indeed, they increase end-to-end delivery latencies to rule out some of the very fast applications such as Line Current Differential Protection [26] and the faster of system integrity protection schemes [19].…”

Section: Recommendations and Conclusionmentioning

confidence: 99%

Evaluating Multicast Message Authentication Protocols for Use in Wide Area Power Grid Data Delivery Services

Hauser

Manivannan

Bakken

2012

2012 45th Hawaii International Conference on System Sciences

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Modern computer communication technologies make it possible to create very flexible Data delivery service (DDS) design that can efficiently meet the quality-of-service needs of a wide variety of power system control and monitoring applications, some which only become possible with better communications. One aspect of the smart grid is that multiple applications will use data from each location. Furthermore, the use of the data for important power grid control functions requires each message's source be authenticated, leading to the need for multicast message authentication. All known multicast message authentication approaches carry trade-offs between quality-of-service (QoS) aspects such as added latency, computational cost, and the precise authentication guarantees they afford. This paper surveys several multicast authentication approaches for use in a power grid DDS based on an experimental evaluation of their latency and computational costs and an assessment of the appropriateness of their authentication guarantees for use in power grid applications.

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Section: Recommendations and Conclusionmentioning

confidence: 99%

Evaluating Multicast Message Authentication Protocols for Use in Wide Area Power Grid Data Delivery Services

Hauser

Manivannan

Bakken

2012

2012 45th Hawaii International Conference on System Sciences

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“…The requirements that a particular type of protection scheme imposes on the communications channel depend on its principal of operation. Channel performance criteria for 87L applications in the context of TDM based SONET/SDH communication networks are well understood and covered extensively in [2], [3]. In this section we focus on PSN communications channel characteristics as applicable to 87L applications.…”

Section: Packet Switched Network Characteristics Impacting 87l Amentioning

confidence: 99%

“…The converters convert the optical signal with vendor specific framing into a standard G.703 E1 signal at a speed of 512kbps as configured on the relays. The data is encoded on preconfigured time-slots 3,7,11,14,18,22,26, 30 corresponding to 8xDS0. The routers Ra and Rb groom the corresponding time slots from the E1 attachment circuit and cross-connect them to the other side using Circuit Emulation Service over Packet Switched Network (CESoPSN) pseudowire transport over the MPLS network [4].…”

Section: Test Setupmentioning

confidence: 99%

Proving viability of line current differential over packet switched networks

Roesler¹,

Lobo

2014

2014 67th Annual Conference for Protective Relay Engineers

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Deploying line current differential protection over Ethernet packet switched transport is more than just making the connections, as the application demands certain deterministic characteristics from the communication channel. Packet switched traffic by its very nature of statistical multiplexing is subject to variances in propagation time due to queuing delays, which can impact the performance of line current differential schemes that are dependent on channelbased synchronization. This paper details the results of testing a line current differential system on a Multiprotocol Label Switching (MPLS) based Ethernet packet switched network. A variety of simulations were performed in order to determine if reliable protection could be achieved in such a network. Protection times were measured and reliability assessed. Impacts of a number of potential threats were established and overall protection performance was evaluated. Details on engineering the network to meet the Reliability, Selectivity, Coordination, Sensitivity, and Speed requirements of a line current differential system are provided.

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“…In a system where reaction time needs to be measured in milliseconds and consequences can be severe the analyses of whole communication chain from substation to WAMPAC system and back is very important, as has been discussed in the literature [20][21][22]. As a prerequisite for successful functioning of the proposed advanced protection algorithms testing of time delay issues in communications infrastructure being used was conducted.…”

Section: Developing and Designing The Triping Procedures Of The Wampacmentioning

confidence: 99%

Algorithm for Fast and Efficient Detection and Reaction to Angle Instability Conditions Using Phasor Measurement Unit Data

Ivanković¹,

Kuzle

Holjevac

2018

Energies

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Abstract:In wide area monitoring, protection, and control (WAMPAC) systems, angle stability of transmission network is monitored using data from phasor measurement units (PMU) placed on transmission lines. Based on this PMU data stream advanced algorithm for out-of-step condition detection and early warning issuing is developed. The algorithm based on theoretical background described in this paper is backed up by the data and results from corresponding simulations done in Matlab environment. Presented results aim to provide the insights of the potential benefits, such as fast and efficient detection and reaction to angle instability, this algorithm can have on the improvement of the power system protection. Accordingly, suggestion is given how the developed algorithm can be implemented in protection segments of the WAMPAC systems in the transmission system operator control centers.

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Modern line current differential protection solutions

Cited by 74 publications

References 1 publication

Evaluating Multicast Message Authentication Protocols for Use in Wide Area Power Grid Data Delivery Services

Evaluating Multicast Message Authentication Protocols for Use in Wide Area Power Grid Data Delivery Services

Proving viability of line current differential over packet switched networks

Algorithm for Fast and Efficient Detection and Reaction to Angle Instability Conditions Using Phasor Measurement Unit Data

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