Frequency and voltage stability assessment of a power system during emergency service states

Muzik, Vaclav; Vajnar, Vladimir

doi:10.1109/eiconrus.2018.8317192

Cited by 2 publications

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“…Rate of change of frequency (ROCOF) [25], [35], the rate of change of active power (ROCOAP) [26], phase angle difference [27], the rate of change of voltage (ROCOV) [28], the rate of change of reactive power ROCORP [29], over under voltage / over under frequency (OUV/OUF) [30] are some passive methods, they are suffering with the large NDZ, and fails to detect islanding at low or zero power imbalance conditions. The combination of any two passive parameters is used to reduce the NDZ, like ROCOF and output power [31], ROCOV and THD [32], ROCOV and power factor [6], [28], ROCOV and ROCOF [33], ROCOAP combination with ROCORP [34]. These methods will reduce the NDZ to less compare to single parameter passive techniques.…”

Section: Introductionmentioning

confidence: 99%

Improved ROCOF relay for islanding detection of solar distributed generation

Reddy

Pandian

2019

IJEECS

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<p>In recent years to meet the energy consumption demand of the world, all are working on renewable distributed generation (RDG) due to shortage of fossil fuels. The RDG systems after integrating with grid, has a disadvantage of islanding in the power system. Islanding is caused, if the RDG is supplying power to load connected due to failures in the grid. As per IEEE 1547 distributed generation (DG) interconnection standards, the islanding should be detected within 2 seconds after islanding. In this paper a hybrid islanding detection scheme is presented with rate of change of frequency (ROCOF) and reactive power injection with positive feedback. It will reduce the non detection zone (NDZ) of passive ROCOF relay to zero and can detect balanced islanding. The computer simulations are performed on MATLAB-2016. The simulations results show the effective performance of the proposed method.</p>

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Section: Introductionmentioning

confidence: 99%

Improved ROCOF relay for islanding detection of solar distributed generation

Reddy

Pandian

2019

IJEECS

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“…Rate of change of frequency (ROCOF) [25], [47], the rate of change of active power (ROCOAP) [26], phase angle difference [27], the rate of change of voltage (ROCOV) [28], the rate of change of reactive power ROCORP [29], over under voltage / over under frequency (OUV/OUF) [30] are some passive methods, they are suffering with the large NDZ, and fails to detect islanding at low or zero power imbalance conditions. The combination of any two passive parameters is used to reduce the NDZ, like ROCOF and output power [31], ROCOV and THD [32], ROCOV and power factor [6], [28], ROCOV and ROCOF [33], ROCOAP combination with ROCORP [34]. These methods will reduce the NDZ to less compare to single parameter passive techniques.…”

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confidence: 99%

Passive Islanding Detection Technique for Integrated Distributed Generation at Zero Power Balanced Islanding

Reddy

Reddy²

2019

IJIE

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Frequency and voltage stability assessment of a power system during emergency service states

Cited by 2 publications

References 0 publications

Improved ROCOF relay for islanding detection of solar distributed generation

Improved ROCOF relay for islanding detection of solar distributed generation

Passive Islanding Detection Technique for Integrated Distributed Generation at Zero Power Balanced Islanding

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