Identification of intentional and unintentional islanding situations of dispersed generators (DGs) is one of the most important protection concerns in power systems. Considering safety and reliability problems of distribution networks, an exact diagnosis index is required to discriminate the loss of the main network from the existing parallel operation. Hence, this paper introduces a new island...

The resilient operation of microgrids (MGs) relies strongly on their ability to operate in islanded mode, autonomously from the bulk grid, whilst adhering secure requirements. Catastrophic events transmission grid can lead abrupt MG islanding accommodated by large frequency and voltage excursions due power imbalances within MG. It is vital that scheduling algorithms incorporate both static tran...

In this paper, a mathematical formulation for the islanding of power networks is presented. Given an area of uncertainty in the network, the proposed approach uses mixed integer linear programming to isolate unhealthy components of the network and create islands, by (i) cutting lines, (ii) shedding loads and (iii) switching generators, while maximizing load supply. A key feature of the new meth...

• High power quality MPPT based-islanding detection method is presented. Accurate islanding within the 137 ms observed. Acceptable total demand distortion and harmonic spectra are met in compliance with existing standards under various penetrations. The efficiency drops by 0.52% whilst disturbance stimulated once a minut. Islanding condition when distributed generators (DGs) disconnected electr...

In this article, a risk-constrained stochastic framework is presented for joint energy and reserve scheduling of resilient microgrid considering demand side management. The optimization problem formulated to schedule the system operation in both normal islanding modes by addressing prevailing uncertainties duration as well prediction errors loads, renewable power generation, electricity price. ...

In order to prevent the potential frequency instability due high Power Electronics (PE) penetration under an unintentional islanding event, this paper presents a novel microgrid scheduling approach which includes system dynamics as well uncertainty associated with renewable energy resources and load. Synthetic Inertia (SI) control is applied regulating active power output of Inverter-Based Gene...

Active distributed generations (ADGs) are more prevalent near consumer premises. However, the ADG penetration contribute a lot of dynamic changes in power distribution networks which cause different protection and control issues. Islanding is one crucial problems related to such ADGs; on other hand, islanding detection also challenging aspect. Therefore, an extensive review real-time depiction ...

The main contribution of this paper is the development of a novel load shedding methodology so as to regulate unacceptable frequency deviations, with least disruption of service, in the case of controlled islanding. To achieve this, an abstracted model of each islanded area, consisting of one lumped generator and turbine model, is used. Since in the controlled islanding the bounds of the areas ...