Technical grid connection guides for distributed electricity generation systems: a new DERlab database has come alive

Purviņš, Artūrs; Klebow, Birthe

doi:10.1049/iet-rpg.2015.0057

Cited by 9 publications

(4 citation statements)

References 11 publications

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“…The maximum rated power of single load P maxone in all RNCs is 0.3MW with power factor 0.85. Based on formula (7), the operating current of RTUs can be obtained as I set = 0.117kA. The grounding mode of neutral point in this simulation model is via a small resistor (R G = 10Ω).…”

Section: Simulation and Analysismentioning

confidence: 99%

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Current-phase-comparison-based pilot protection for normally closed-loop distribution network with underground cable

Tian

Zhao

Zhang

et al. 2018

Int Trans Electr Energ Syst

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Summary Closed‐loop operation of distribution network has attracted more attention recently to improve supply reliability and adopt distributed energy resources friendly. But its protection is usually independent of distribution automation system (DAS). This article presents a pilot protection method for closed‐loop distribution network with underground cable by comparing current phase, which can be accomplished by remote terminal units (RTUs) in DAS. Firstly, operation value of RTUs is designed on the current variation after fault and the RTUs are synchronized automatically based on fault signal. Secondly, the current phase characteristic of positive‐sequence fault component is analyzed when various short circuit fault occurs at different locations. Based on the current phase difference, the state of ring network cabinet is classified into four types, and uniform fault location rule by adjacent RTUs is designed. The fault can be located and isolated directly by cooperation of adjacent RTUs. The setting principle and the operation logic for the pilot protection are given, and its performance is analyzed. Finally, simulation model based on PSCAD is constructed. The simulation results prove that this protection can locate and isolate faults timely on the premise of high sensitivity. It has strong ability of enduring fault resistance, and it can fit closed and open operation mode.

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Section: Simulation and Analysismentioning

confidence: 99%

“…Meanwhile, the distributed energy resource (DER) has been researched and applied widely. But conventional radical network structure with existing protection technology cannot adopt DERs friendly …”

Section: Introductionmentioning

confidence: 99%

Current-phase-comparison-based pilot protection for normally closed-loop distribution network with underground cable

Tian

Zhao

Zhang

et al. 2018

Int Trans Electr Energ Syst

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“…ϕ is 0.10 MW. According to (7), I set1 can be calculated as 2.92 kA based on N = 3, K rel = 1.1, K SS = 7, cosφ = 0.85, U N = 0.38 kV and P max = 0.3 MW. According to (8), I set2 can be calculated as 0.97 kA based on N = 3, K rel = 1.1, K SS = 7, cosφ = 0.85, U N = 0.38 kV and P max .…”

Section: Simulation and Analysismentioning

confidence: 99%

“…However most DERs operate with random and intermittent output and the conventional distribution network cannot adopt DERs friendly. High supply reliability and friendly integration of DERs is the developing trend of future distribution system [5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Sequence current component and its power direction‐based improved protection for spot network with DERs

Zhang

Crossley²,

et al. 2017

IET Generation, Transmission & Distribution

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A comprehensive review of standards and best practices for utility grid integration with electric vehicle charging stations

Sachan

Deb

Singh

et al. 2021

WIREs Energy & Environment

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The present work presents a comprehensive state-of-the-art bibliographical review of standards related to utility grid integration and best practices of the electric vehicle (EV) charging stations. The presence of a robust tuning method is essential for successful utility grid integration with the charging stations. The lack of system standardization may hamper the EV uptake as well as successful utility grid integration with the charging stations. The distributed energy resources (DER) and vehicle to grid (V2G) are going to play a vital role in the power system operation and control. The applicability of criterions within the utility grid integration with charging station area is important to the grid operators, charging service providers, manufacturers, fleet operators, and so forth to ensure safety, dependability, and interoperability. Hence, this work tries to deliver a comprehensive and systematic review of standards and best practices for utility grid interaction with charging stations. It will help the specialists of power as well as transport sectors to track down every one of the norms and best practices, which are accessible at one stage to compare different guidelines.

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Technical grid connection guides for distributed electricity generation systems: a new DERlab database has come alive

Cited by 9 publications

References 11 publications

Current-phase-comparison-based pilot protection for normally closed-loop distribution network with underground cable

Current-phase-comparison-based pilot protection for normally closed-loop distribution network with underground cable

Sequence current component and its power direction‐based improved protection for spot network with DERs

A comprehensive review of standards and best practices for utility grid integration with electric vehicle charging stations

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