Performance of Loss-Of-Mains Detection in Multi-Generator Power Islands

Tzelepis, Dimitrios; Booth, Campbell

doi:10.1049/cp.2016.0066

Cited by 18 publications

(11 citation statements)

References 14 publications

(12 reference statements)

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“…To date, research has proposed both passive, active and remote islanding detection methods for AC systems [7]. Unlike AC MG systems, DC MGs have limited islanding detection methods.…”

Section: Islanding Detection Methodsmentioning

confidence: 99%

Assessment of Passive Islanding Detection Methods for DC Microgrids

Aḥmad

Florida-James

Tzelepis

et al. 2019

15th IET International Conference on AC and DC Power Transmission (ACDC 2019)

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This paper provides an assessment of passive islanding detection methods in DC microgrids. In order to analyse the response of a DC microgrid to an islanding event, DC voltage and current signatures are captured locally at the terminals of Distributed Energy Resources (DERs). Further analysis on DC voltage and current measurements is carried out to derive the Rate of Change of Voltage (ROCOV) and the Rate of Change of Current (ROCOC), to distinguish between genuine islanding events and other disturbances. A detailed DC microgrid has been developed in MATLAB/Simulink to analyse the response of the DERs within a DC microgrid during intentional or unintentional islanding events. The results show that these approaches cannot be used to classify and characterise between islanding and non-islanding events caused by high resistive faults for DC microgrids, as the response of the DERs are dependent on the technology and associated control systems, which influences post event analysis in distinguishing between events.

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“…To date, research has proposed both passive, active and remote islanding detection methods for AC systems [7]. Unlike AC MG systems, DC MGs have limited islanding detection methods.…”

Section: Islanding Detection Methodsmentioning

confidence: 99%

Assessment of Passive Islanding Detection Methods for DC Microgrids

Aḥmad

Florida-James

Tzelepis

et al. 2019

15th IET International Conference on AC and DC Power Transmission (ACDC 2019)

Self Cite

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“…LOM protection is required when embedded generation (e.g., renewable generation) is used in power systems [1], [2]. Areas of a power network will occasionally become isolated from the wider network either deliberately for maintenance or accidently due to a fault.…”

Section: A Loss-of-mains Protectionmentioning

confidence: 99%

“…I. INTRODUCTION P OWER system frequency and rate-of-change-offrequency (ROCOF) are important metrics in the context of increasing levels of distributed generation; they are used as inputs to control systems for protection, power balance management, and provision of system inertia of electricity grids [1]- [4].…”

mentioning

confidence: 99%

Reliable Rate-of-Change-of-Frequency Measurements: Use Cases and Test Conditions

Rietveld

Wright

Roscoe

2020

IEEE Trans. Instrum. Meas.

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Based on user expectations and requirements, this article discusses three use cases (UCs) for measurements of power system frequency and rate-of-change-of-frequency (ROCOF) measurements, specifying accuracy and latency requirement for each UC. Furthermore, a set of realistic test conditions are proposed, extending those of the present IEC/IEEE 60255-118-1 standard, to ensure ROCOF measuring instruments are adequately tested on their suitability for reliable ROCOF measurements in power systems. Target worst case ROCOF errors (RFEs) are given for each test waveform and UC. Several published ROCOF algorithms are tested using the proposed test conditions. A selection of the test results is reported and compared against the target RFEs. The results show that the defined tests are indeed helpful in evaluating the ROCOF algorithms, and furthermore that the algorithms can be designed to meet all the requirements on RFEs for the tests proposed in this article.

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“…As such, any large kinetic energy is decoupled from the network resulting in a low inertia. When large transients occur in low-inertia networks, voltage and frequency are expected to deviate significantly from nominal values, which affects the common anti-islanding methods such as Rate of Change of Frequency (RoCoF) and Vector Shift (VS), and the performance of islanding detection methods [9] [10].…”

Section: Islanding Detectionmentioning

confidence: 99%

Islanding of Distribution Networks: Challenges and Potential Solutions

Yan

Tzelepis

2018

2018 53rd International Universities Power Engineering Conference (UPEC)

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The concept of generating electricity from renewable sources has been developed to solve the problems raised by environmental pollution and diminishing fossil fuel resources. Integration of clean renewable generation into existing electrical systems has been proven to benefit both power system operators and customers. However, a number of technical and economic challenges still exist with regards to effective integration and optimal utilization of such sources. One of the issues much debated recently is the provision for islanded operation in distribution networks utilizing the locally available generation. There are many obstacles and challenges concerning technical, economic and regulatory aspects of islanded operation which attract a significant amount of research worldwide. This review paper covers the stateof-the-art in research on islanded systems, specifically concerning: generation control, islanding detection, protection, and other functions such as power-sharing and black start capability.

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Performance of Loss-Of-Mains Detection in Multi-Generator Power Islands

Cited by 18 publications

References 14 publications

Assessment of Passive Islanding Detection Methods for DC Microgrids

Assessment of Passive Islanding Detection Methods for DC Microgrids

Reliable Rate-of-Change-of-Frequency Measurements: Use Cases and Test Conditions

Islanding of Distribution Networks: Challenges and Potential Solutions

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