Islanding Detection of Integrated System Using Hybrid Rocof and Current Injection Technique

VENKATA RAMI REDDY SAREDDY, ch RamiReddy

Abstract


Renewable distributed generation (RDG) has become prior now a days due to the insufficient availability of fossil fuels and to reach the global wide energy demand. The other side of Renewable distributed generation systems is breakdown from the power grid can be incurred later being connected to it. Islanding incurs into the system once there is abnormal electrical parameters into the system until then the RDG sustains energy flow to the added load. IEEE 1547 explains time range for the accomplishment of DG interconnection job and one of these jobs is the identifying of islanding, which must be done within two seconds of the job start. This paper gives innovative and effective islanding identifying algorithms for a hybrid DGS connected to the grid. These techniques depend on reactive power injection with positive feedback and the rate of frequency change (ROCOF). In addition, this Non Detection Zone (NDZ) is readily identified using this technique on compared with standard approaches. These techniques depicts a better improvement in their ability to categorise events into islanding and non-islanding cases. The MATLAB/Simulink tool gives a settings to the suggested methods those can be implemented.


Keywords


Islanding detection, ROCOF, Non islanding, Non detection zone

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References


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DOI (PDF): https://doi.org/10.20508/ijsmartgrid.v8i2.344.g357

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