Asset management and maintenance: a smart grid perspective

Abstract

<p>This paper presents the importance, issues and challenges related to Smart Grid. It also evaluates various approaches for Smart Grid planning and operation. It discusses tools for asset management and their applicability to the next generation grid. Aging assets, uncertainty in load demand profile and renewable energy resources, and demand management create a challenge for the optimal operation and maintenance of electrical grid. This paper addresses the challenges and opportunities to improve transmission and distribution systems asset maintenance. This paper also presents the asset replacement alternatives. This paper also presents the cost-benefit analysis of asset management using the information/real time data from the utility company. This paper will serve a guide for doing the asset management to the electrification process, investment and recovery to sustain reliable and efficient power delivery.</p>

Developing a hybrid filter structure and a control algorithm for hybrid power supply

“…In the case of hybrid power supply mode, it is also necessary to know how the total load is distributed between the centralized source and the autonomous one. Besides, there is the case to be taken into account when the total load is connected to a busbar powered by a centralized source and an autonomous one working in parallel [38]. − The detection of connected load parameters: the correlation between linear and non-linear load, the responsibility level of each load according to the possibility of disconnection in the case of power supply shutdown [39].…”

“…− The detection of the primary source of poor power quality according to several indicators including voltage and current harmonics, voltage dips and deviations, source and load asymmetry. This stage helps to select properly the point of hybrid filter device installation when the primary reason of poor power quality is the power supply source, connected load, or network elements [38]. Also, all the stages indicated above may be considered as a methodology to select the structure and parameters of multifunctional hybrid filter devices under variations in power source and connected load characteristics.…”

Study on the performance indicators for smart grids: a comprehensive review

“…Fuzzy logic can also be used for locating short circuit faults, which is used for vulnerability contours. This method is useful both for online and offline applications [20]. Fault resistance is also taken into account.…”

The assesement of the shunt active filter efficiency under varied power supply source and load parameters

“…It is undeniable that ensuring power quality improvement and electromagnetic compatibility is critical in centralized power supply systems, distributed generation systems, and combined power supply systems [1][2][3][4]. The main negative influences of the poor power quality level on electrical equipment and power supply systems are well-known and have been studied in detail [5][6][7][8][9][10].…”