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Identification of system disturbances and detection of them guarantee smart grids power quality system reliability and long lasting life of the power system. The key goal of this study is to generate non — time consuming features for CPU, for recognizing different types of non-stationary and non-linear smart grid faults based on signal processing techniques. This paper proposes a new solution for...
This paper presents the study of impacts on power quality because of a Distributed Generation (DG). A Rayong-based distribution feeder which is integrating with the 0.996MW of solar Photovoltaic (PV) rooftop system is utilized as the case study. Moreover, an additional DG is modeled and simulated to consider power quality based on size and location of the new DG. The DIgSILENT PowerFactory is used...
Distribution power system has poor power quality and dynamic performance due to insufficient reactive power support during disturbances. Distribution Static Compensator (DSTATCOM) can improve the power quality and dynamic performance of distribution power system. Proportional and Integral (PI) controllers are often used to control the operation of the DSTATCOM for the distribution power system. However,...
Realization of future low-voltage (LV) microgrids requires that all technical issues, such as power and energy balance, power quality and protection, are solved. One of the most crucial one is the protection of LV microgrid during normal and island operation. In this paper, protection issues of LV microgrids are presented and extensions to the novel LV-microgrid-protection concept has been developed...
It is necessary to monitor and analyze the power quality firstly in order to solve the power quality problems in power system, and then the possible reforming project can be put forward for improving power supply quality. According to the actual situation in the region, a system approach to voltage sag monitoring and analyzing has been designed and developed. The system and its composition, software...
Most of FACTS devices and grid connected converters need the information about the frequency and phase of the grid for synchronization and control. In some cases, the value to be measured that is used as synchronization signal is at remote bus or at a different voltage potential, which would require expensive high voltage measurements or high bandwidth communication. A new synchronization method for...
Many types of microgeneration technologies are interfaced with the low-voltage distribution network through power electronic converters. The converter provides conversion of the microsource frequency to the conventional power system frequency of 50/60 Hz, and controls the power exchange between the generator and the load/utility system. A power factor control strategy is presented, which demonstrates...
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