Results 161 to 170 of about 55,732 (202)
Some of the next articles are maybe not open access.
A Methodology for Optimization of Unbalanced Distribution Systems
IEEE Latin America Transactions, 2013A method for the optimization of three-phase electrical systems is proposed in this paper, the proposed method can be used in transmission, distribution and joint studies of transmission-distribution systems. The proposed methodology is based on the three-phase currents injection method and primal dual interior point method. This document presented the
L. R. Araujo +3 more
openaire +1 more source
Probabilistic evaluation of harmonic impedances in unbalanced distribution systems
2003 IEEE Bologna Power Tech Conference Proceedings,, 2004This paper presents a technique to obtain the probability density functions of network harmonic impedances in an unbalanced three-phase distribution system. In these systems the impedances can significantly vary as a function of time due to the presence of single and multi-phase capacitors, generators and filters which can be switched on and off and ...
A. ABUR +3 more
openaire +2 more sources
Unbalanced distribution system voltage optimisation
2016 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT-Europe), 2016Conservation voltage reduction (CVR), the theory that reducing distribution feeder voltages will result in a reduction in demand, has recently been reintroduced with the aim of improving overall energy efficiency. Although CVR is a simple and cost-effective scheme, reducing voltages may not always be the most beneficial decision in terms of reducing ...
openaire +1 more source
Analysis of unbalanced radial distribution system with SSVR
2014 Recent Advances in Engineering and Computational Sciences (RAECS), 2014This paper presents modeling of Static Series Voltage Restorer (SSVR) unbalanced radial distribution system (RDS) load flow. To incorporate this approach, an accurate model for SSVR is derived to use in load flow calculations. SSVR reactive power rating as well as direction of required reactive power injection to compensate voltage of a particular node
Deepmala Wadhwa, Ashwani Kumar
openaire +1 more source
Current Compensators for Unbalanced Electric Distribution Systems
2018 IEEE Electronic Power Grid (eGrid), 2018Inherent current imbalances are often present in electric distribution systems due to the increase of single-phase generation in the form of renewables and the existence of single-phase loads. The continued expansion of non-linear load usage is also increasing the levels of harmonics through the power transformers servicing these distribution systems ...
Vinson Jones +2 more
openaire +1 more source
A Fault Analysis Algorithm for Unbalanced Distribution Systems
IEEE Latin America Transactions, 2015This paper describes a new methodology for the fault analysis of a distribution electrical system, in which the phase imbalances, different types of loads, neutral cables, groundings and other inherent characteristics of distribution systems are taken into account.
Debora Rosana Ribeiro Penido +2 more
openaire +1 more source
Optimal capacitor control for unbalanced distribution systems with distributed generations
2008 IEEE International Conference on Sustainable Energy Technologies, 2008An unbalanced three-phase optimal capacitor control algorithm taking the mathematical models of Distributed Generations (DGs) into account is proposed in the paper. The formulations and solution procedures of the optimal capacitor planning and real-time capacitor control are both derived. The special topological characteristics of distribution networks
null Jen-Hao Teng +3 more
openaire +1 more source
Distributed generation in Unbalanced Mesh Distribution System with different unbalances
2014 6th IEEE Power India International Conference (PIICON), 2014Distributed Generation (DG) is an electric power source connected directly to the distribution network or on the customer site of the meter. The penetration of DG may impact the operation of a distribution network in both beneficial and detrimental ways. Some of the positive impacts of DG are: voltage support, power loss reduction, support of ancillary
Ravi Teja Bhimarasetti, Ashwani Kumar
openaire +1 more source
Distributed Optimal Voltage Control for Three Phase Unbalanced Distribution Systems with DERs
2020 IEEE Industry Applications Society Annual Meeting, 2020Traditionally, electric utilities have used local (non-optimal) or centralized (optimal) approaches for voltage control in electric distribution grids. However, with increased penetration of distributed energy resources (DERs), voltage control has become increasingly challenging for distribution grid operators.
Niloy Patari +3 more
openaire +2 more sources
Capacitor Allocation in Unbalanced Distribution System under Unbalances and Loading Conditions [PDF]
Energy Procedia, 2014 It is well known fact that distribution systems can operate under unbalanced loading conditions, means that the distribution system planner have to account for any unbalances in the system for reliable operation of the system. In this paper optimal sizes
Ashwani Kumar
exaly +2 more sources