Rotating Machine Based DG Islanding Detection Analysis Using Wavelet Transform

Mogaka, L.; Murage, David K.; Saulo, Michael Juma

doi:10.11648/j.ijepe.20150405.14

Cited by 2 publications

(1 citation statement)

References 6 publications

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“…Indeed, during grid maintenance, grid outages can lead to generator islands [1], [2]. Since the loss of the network is voluntary, the island is well known and can be closed by the staff member concerned [3], [4]. Involuntary islands associated with accidental network outages have aroused a great deal of interest.…”

Section: Introductionmentioning

confidence: 99%

A fuzzy rule based approach for islanding detection in grid connected inverter systems

Ikken¹,

Tariba²,

Bouknadel³

et al. 2021

IJECE

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Islanding is when an area of the electrical distribution system is isolated from the electrical system while being powered by distributed generators. An important condition for the interconnection of power plants and distribution systems is the ability of the power plant to detect islands. The presented and proposed method is a combination of best active sandia frequency shift (SFS) method with the intelligent fuzzy logic controller, which has been tested in distributed production using the island detection function. And the choice to improve the method by fuzzy logic control (FLC) is retained, as this process is more effective in decreasing the non-detection zone (NDZ) and in further improving the efficiency of the islanding detection system. This paper proposes a new active islanding detection technique controlled by a fuzzy logic controller, for grid connected photovoltaic (PV) inverters. In addition, the efficiency and performance of the proposed method strategy for islanding detection has been analyzed and tested in the various situations of the network. In addition, the results of the simulations with the power simulation (PSIM) software will be provided to illustrate the main conclusions and the development of the control. Thus, will be used to show the feasibility and validity of the proposed new algorithm.

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Section: Introductionmentioning

confidence: 99%

A fuzzy rule based approach for islanding detection in grid connected inverter systems

Ikken¹,

Tariba²,

Bouknadel³

et al. 2021

IJECE

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Power Optimization and Prioritization in an Island Supplied by a Rotating Machine Based Distributed Generator Using Artificial Bee Colony Algorithm

Mogaka

Murage²,

Saulo

2016

IJEPE

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Abstract:Currently the greatest threat to the power systems reliability and security is the cascading of electric system failures thus causing power blackouts. For quite some time now, the world has been encountering many power blackouts as a result of these cascading failures. The cascading power failure instances pose great risks towards the integrity of power system network. This may finally lead to the splitting of the power system into various small unintentional islands. Hence, intentional or controlled islanding is then utilized as a preventive measure to mitigate the losses caused by unintentional islanding of the power system. Thus, by doing this, the entire power system is split into controlled island regions for the purposes of easy handling and control. In such situation, each islanded region should have sufficient generation to supply its connected loads in order to remain operative and stable. It should also be pointed out that intentional islanding is very important as it can prevent the entire power system from collapsing. The distributed generators supplying the loads in these islands may not be able to maintain the voltage and frequency within desired limits in the distribution system when it is islanded within the micro grid. There may be a power deficit within the island. This eventually leads to shedding of some loads within the island for the sake of stability of the system. Hence the main challenge here is to determine the appropriate and reliable method to optimize the power supply and the load demand in the island and thus maintain the voltage and frequency within the desired limit. In this study we focused on the determination of the minimum load amount for shedding within the islanded region and the prioritization of the buses for shedding so that electricity supply to customers could be maximized using ABC algorithm. From the results obtained, the ABC algorithm can be successfully applied for solving the optimization and prioritization problems within the island being supplied by a DG. The ABC algorithm has several merits over other algorithms which makes it suitable in this application. These advantages include; it is easily implemented, flexible, has few control parameters, easily hybridized with other optimization algorithms and can be modified very easily to suit any application. This system was simulated in MATLAB and SIMULINK using IEEE fourteen bus systems.

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Rotating Machine Based DG Islanding Detection Analysis Using Wavelet Transform

Cited by 2 publications

References 6 publications

A fuzzy rule based approach for islanding detection in grid connected inverter systems

A fuzzy rule based approach for islanding detection in grid connected inverter systems

Power Optimization and Prioritization in an Island Supplied by a Rotating Machine Based Distributed Generator Using Artificial Bee Colony Algorithm

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