This project applies coherency methods for dynamic analysis of power systems. It has been observed that in case of disturbances machines swing together, forming groups of coherent generators. In [1], a dynamic network reduction is described based on a slow-coherency method, aggregating coherent generators into one equivalent machine. In [2] it is demonstrated that such methods can also be used ...

The increasing demand of electric power is giving an emphasis on the need for the maximum utilization of renewable energy sources. On the other hand maintaining power quality to satisfaction of utility is an essential requirement. In this paper the design aspects of a Unified Power Quality Conditioner integrated with photovoltaic system in a distributed generation is presented. The proposed sys...

The quality of power in modern-day system is polluted with increased penetration converter-based distributed generations such as wind farm, solar PV system. In scenarios detection islanding and disturbances well the removal these from quite crucial for equipment maintenance personnel safety. Here, a down-sampling empirical mode decomposition (DEMD) optimized random forest (RF) machine learning ...

Intentional islanding is a corrective procedure that aims to protect the stability of power system during an emergency, by dividing grid into several partitions and isolating elements would cause cascading failures. This paper proposes deep learning method solve problem intentional in end-to-end manner. Two types loss functions are examined for graph partitioning task, function added on model, ...

Micro Grid is a contracted distributed AC or DC network. Micro Grid resources are connected to the distributed linear as well as nonlinear loads through power electronics converter to provide an efficient, more reliable and quality power to the distributed loads with reduced co2 emission. Consequently makes full use of low cost generation resources and reduce waste. Interconnected Mode in the M...

In order to investigate power system security and design appropriate control strategies, power systems can be conceptually classified into five operational states: Normal, Alert, Emergency, In Extremis, and Restorative. Various preventive and corrective control strategies have been studied to cope with power systems in the different operational states. Our approach primarily focuses on the corr...

This paper proposes the improved hierarchical- based control of Microgrid on proportional and multi-resonance controllers to compensate for harmonic distortion nonlinear loads. Moreover, probable transition MG, especially from grid-connected unplanned islanding unintentional MG resources outage are studied. In current voltage three-phase VSIs which located in inner level, multi-resonant impleme...

This paper presents the results of a research project dealing with the development of an adjustable converter for the injection of power generated by low voltage energy sources (primarily fuel cells used for decentral cogeneration of electric and thermal energy) into the public grid. The converters principle of operation is explained; measurements demonstrate the performance of the converter in...