Ultra‐high‐speed travelling wave directional protection based on electronic transformers

Wang, Dong; Gao, Houlei; Zou, Guibin; Luo, Sibei

doi:10.1049/iet-gtd.2016.1694

Cited by 20 publications

(7 citation statements)

References 20 publications

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“…Figure 1 shows the difference between smart grid and conventional grid [1]. In Figure 1, the advanced metering infrastructure (AMI) mainly corresponds to the AMR (automatic meter reading) of smart meters.…”

Section: Basic Structure and Working Principlementioning

confidence: 99%

Power Electronic Transformer Device Model Based on DSP Protection

2019

IJOMAM

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Space Vector Pulse Width Modulation (SVPWM) technology has higher voltage utilization, lower instantaneous rate of change and smaller total harmonic distortion than Sinewave Pulse Width Modulation (SPWM), and is more suitable for digitization To achieve, so more and more attention. SVPWM technology can be applied to cascaded multilevel converters to achieve lower voltage fluctuation and smaller harmonic distortion. It can be seen from the simulation and experiment that SVPWM technology can be applied to cascade Multi-level converter, the output voltage fluctuation rate is small, the overall utilization rate is higher.

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Section: Basic Structure and Working Principlementioning

confidence: 99%

Power Electronic Transformer Device Model Based on DSP Protection

2019

IJOMAM

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“…Second, if a fault occurs at a voltage inception angle close to 0°, there will be no appearance of a travelling wave. In [22], similar drawbacks were detailed. Therefore, these methods might not be good candidates when practicality is considered.…”

Section: State‐of‐the‐art Directional Elementsmentioning

confidence: 99%

Protection of inverter‐based microgrids from ground faults by an innovative directional element

Mahamedi

Zhu²,

Eskandari

et al. 2018

IET Generation, Transmission & Distribution

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“…A directional protection using Rogowski coil is presented in Ref. and the method proposed in Ref. using the first arrival time of travelling waves at each terminal is applicable only in multiterminal DC network.…”

Section: Introductionmentioning

confidence: 99%

Fault location in multilateral distribution network with electric vehicle charging load

Kumar¹,

Saxena

2019

Energy Storage

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In a multilateral distribution network, faults at different locations can generate the same voltage and current at the substation; hence, the calculated fault location can correspond to several places in the network. To avoid this major problem, a two‐terminal travelling wave‐based fault location method is presented in this article, which at first identifies the faulted lateral in the distribution network and then estimates the exact fault location. The proposed fault location scheme uses wavelet energy entropy of the recorded three‐phase current signals and the magnitude of ground mode component wavelet modulus maxima (WMM) for fault detection and fault type identification in the network. After that, the faulted lateral identification followed by the exact fault location is performed using the aerial mode component WMM of the fault‐generated current transients. Since the integration of electric vehicle (EV) charging load is increasing day by day to the distribution network, the performance of the proposed algorithm is tested with EV charging load along with distributed generation integrated into the distribution network. Modeling and simulation of the distribution network and EV load are performed in MATLAB/SIMULINK. The simulation results show that the proposed method can accurately locate fault under different operating conditions.

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Ultra‐high‐speed travelling wave directional protection based on electronic transformers

Cited by 20 publications

References 20 publications

Power Electronic Transformer Device Model Based on DSP Protection

Power Electronic Transformer Device Model Based on DSP Protection

Protection of inverter‐based microgrids from ground faults by an innovative directional element

Fault location in multilateral distribution network with electric vehicle charging load

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