Optimum Message Transfer Rate for Distribution Feeder Protection Operating over Switched Telephone Networks

Li, H. Y.; Crossley, P.A.

doi:10.1109/mper.2002.4312077

Cited by 4 publications

(2 citation statements)

References 4 publications

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“…In addition, the leased communication line channels provide a cost-effective alternative. 20 Hence, the protection of the distribution system can be further developed based on the communication technologies.…”

Section: Such As the Lelystadmentioning

confidence: 99%

A two-step protection algorithm for smart distribution systems with DGs

Liu²,

et al. 2018

Int Trans Electr Energ Syst

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Summary Increasing penetration of distributed generators (DGs) is gradually changing distribution networks from a radial structure into a multi‐source one. In addition, some distribution systems are in slightly meshed structures for the interest of smart grids. The traditional protection philosophy is being challenged because the coordination among protection devices is affected by the bi‐directional power flow and the intermittent nature of DGs. This paper proposes a communication‐based protection algorithm considering the impact of bi‐directional power flow in distribution networks with DGs. The proposed algorithm detects and isolates fault sections by a 2‐step search procedure. In step 1, an injected power calculation, in conjunction with a tabu search algorithm, is used to narrow down the fault‐section search region by using the voltage measurements. Step 2 precisely detects the fault section by comparing current phase angle changes. A typical distribution network in Beijing, China and the IEEE 30‐node system are used to illustrate and validate the proposed method.

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Section: Such As the Lelystadmentioning

confidence: 99%

A two-step protection algorithm for smart distribution systems with DGs

Liu²,

et al. 2018

Int Trans Electr Energ Syst

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“…Assuming a linear investment cost is a function of the number of channels which may be expressed by (7) where is the system investment cost and is per channel investment cost, is the number of channels used by the DSE. Based on (7) and the data in Table III, the investment costs of three communication systems are calculated and listed in Table IV.…”

Section: ) System Availability Investment Costsmentioning

confidence: 99%

Assessment of Switched Communication Network Availability for State Estimation of Distribution Networks With Generation

Yunus

2007

IEEE Trans. Power Delivery

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Active management of complex distribution networks with distributed generation requires state estimation. As complete supervisory control and data acquisition systems are seldom available on 11-kV or lower voltage distribution networks, real-time measurements at remote points on 11-kV distribution networks are expensive. Therefore, the economical selection of a communication system for active management of distribution networks with distributed generation becomes an important issue. This paper presents the investigations into a leased communication system made of public-switched communication network channels for a distribution network state estimation application. It analyzes the effects of a different number of primary channels for real-time measurements on the distribution network state estimation accuracy. The leased communication system availability performance has also been analyzed and used to identify a number of reserve channels required to improve the leased system availability. The overall cost for improving the leased communication system availability has been calculated and compared with both a fiber-optic communication system and a power-line carrier communication system. The results show that the leased communication system is able to provide the lowest overall cost performance for the distribution network state estimation application.Index Terms-Active distribution network management, communication system availability, communication system cost assessment, state estimation.

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Positive sequence current differential protection based on least square method for distribution network with distribution generation

Xiong

Chen

2021

2021 IEEE 4th International Electrical and Energy Conference (CIEEC)

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Optimum Message Transfer Rate for Distribution Feeder Protection Operating over Switched Telephone Networks

Cited by 4 publications

References 4 publications

A two-step protection algorithm for smart distribution systems with DGs

A two-step protection algorithm for smart distribution systems with DGs

Assessment of Switched Communication Network Availability for State Estimation of Distribution Networks With Generation

Positive sequence current differential protection based on least square method for distribution network with distribution generation

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