Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 16 of 16 for “"DIgSILENT PowerFactory"”.
-
New Differential Zone Protection Scheme Using Graph Partitioning for an Islanded Microgrid
… Simulink, and its impact is simulated with DIgSILENT PowerFactory software. Additionally, a comprehensive comparison was made to a comparable differential zone protection scheme.
-
Optimal sizing and placement of independent power producers on MV, HV and EHV networks for minimum power line losses using neural networks
… value is shown to be 0.05343MW (when compared to DIgSILENT Powerfactory simulations). This translates to an error of 0.1684%. The 22kV case is presented using the same network parameters as the 11kV case but uprated to nominal voltage of 22kV. The same trend is seen for the 22kV case but with …
-
Optimal sizing and placement of independent power producers on MV, HV and EHV networks for minimum power line losses using neural networks
… value is shown to be 0.05343MW (when compared to DIgSILENT Powerfactory simulations). This translates to an error of 0.1684%. The 22kV case is presented using the same network parameters as the 11kV case but uprated to nominal voltage of 22kV. The same trend is seen for the 22kV case but with …
-
Technical analysis of renewable energy integration with battery energy storage systems on the Eskom grid
… shaving (LS). Both networks were modelled using DigSilent Powerfactory and hourly load data from MV90 and the Eskom data tool. Eskom contractors' BESS models were used to simulate the future network, allowing for a comparison between the current network without BESS and the future network with …
-
Investigation into voltage and angle stability of a hybrid HVAC-HVDC power network
… The simulations for this study was done using DIgSILENT Powerfactory software version 14.0.515. This study encapsulates the three major stability problems affecting power systems network, namely, the voltage stability, transient stability and small signal stability. The voltage stability study …
-
Optimal placement of battery energy storage system for voltage profile improvement and power loss reduction
… utilizing MATLAB for optimization algorithms and DigSilent PowerFactory for load flow analyses. Initial assessments establish a baseline scenario without BESS, followed by the application of Particle Swarm Optimization (PSO) and Genetic Algorithm (GA) to identify optimal BESS locations. The study …
-
Creating additional network capacity on constrained medium voltage networks utilizing distributed generation (specifically PV technology)
… method to be utilized for network analysis in DIgSILENT Powerfactory supported by a data analytic interface in Microsoft Excel. This analysis optimally places PV to the network to maximize network capacity and is quantified by defining an objective function that relates network capacity …
-
Grid integration of distributed renewable energy sources: a network planning perspective
… models derived from power system models built in DIgSILENT Powerfactory analysis software. For a Network Planning Engineer, planning for this integration can be become quite complex in a multi-machine scenario as above. This dissertation provides network planning criteria that a planning engineer …
-
Optimal placement and effect of a wind farm on load flow and protection systems in a municipal distribution network
… These studies were conducted using the DIgSILENT PowerFactory simulation package, with the networks and protection data being modelled in this package. Network and protection performance results were recorded for each case in both networks under study. The results show that in the case …
-
Voltage stability analysis of a power system network comprising a nuclear power plant
… integrated power system are built in the Digsilent PowerFactory® software. The scenario for evaluation is based on a voltage stability event that occurred around at the Koeberg nuclear power system situated in the Western Cape province on South Africa on 15 October 2003. It is commonly …
-
Impact of solar photovoltaics on the system stability of the Zambia national grid
… and simulations in power system software (DIgSILENT PowerFactory). The highlights of the investigation results are that there was alteration of voltage levels, changes of line losses, reversal of power flows and improvement in steady state voltage stability depending on level of penetration …
-
Impact of solar photovoltaics on the system stability of the Zambia national grid
… and simulations in power system software (DIgSILENT PowerFactory). The highlights of the investigation results are that there was alteration of voltage levels, changes of line losses, reversal of power flows and improvement in steady state voltage stability depending on level of penetration …
-
Electrification of domestic heating on the island of Ireland to reduce emissions and enhance system stability
… of the “New England IEEE 39-Bus System” on DIgSILENT PowerFactory. This was adjusted twice to reflect the dynamics observed on the Ireland all-island power system, during both a large loss-of-load event and a large loss-of-generation event. The simulation was set up in such a way that it …
-
Power quality enhancement in electricity networks using grid-connected solar and wind based DGs
… case studies in this work are done using DIgSILENT PowerFactory version 14.1 as well as coding in MATLAB. The cases studies conducted are aimed at facilitating the proper planning of grid integration of wind and solar PV-based DGs by comparing their PQ improvement capabilities under …
-
Significance of battery energy storage systems in mitigating the challenges in weak grids
… called binary grey wolf optimization. Further, PowerFactory was used to model the grid and test system responses. Since BESSs are expensive assets that can be used for multiple applications, including as potential solutions for mitigating weak grid challenges, in practice decisions regarding …
-
Smart management strategies of utility-scale energy storage systems in power networks
Power systems are presently experiencing a period of rapid change driven by various interrelated issues, e.g., integration of renewables, demand management, power congestion, power quality requirements, and frequency regulation. Although the deployment of Energy Storage Systems (ESSs) has been …