ANALYSIS OF EXCHANGE PROCESSES IN PARALLEL WORK OF TWO THREE-PHASE WIND TURBINES

• Datum: 2018
• Hauptverfasser: Denysiuk, S., Horenko, D.
• Format: Artikel
• Sprache: Ukrainian
• Veröffentlicht: Institute of Renewable Energy National Academy of Sciences of Ukraine 2018
• Schlagworte: Smart Grid; autonomous power systems; wind power installations; electromagnetic сompatibility; three-phase power supply systems; exchange processes; exchange power
• Online Zugang: https://ve.org.ua/index.php/journal/article/view/148
• Назва журналу: Vidnovluvana energetika

An extended analysis of electromagnetic compatibility problems in the Smart Grid and the use of wind turbines in them is carried out. A comparative analysis of different types of electric AC machines, which are part of wind turbines, is carried out. The purpose of the study is to analyze the exchange processes in autonomous three-phase power supply systems based on wind power plants of different capacities. The authors set forth the following tasks: construction of analytical dependencies of own and mutual influences of separate elements of the autonomous power supply system model with two wind turbines in an arbitrary intersection, analysis of exchange processes in parallel operation of two wind turbines of the same power included non-synchronously and analysis of exchange processes in parallel operation of two wind turbines of different power included synchronously, feeding the asymmetric load. The analytical dependences have been constructed and the formulas for determining the exchange power of many generator systems characterizing the own and mutual influences of separate elements of the autonomous power supply system on the basis of parallel operating wind turbines at an arbitrary section of the system have been able to determine the influence of any element of the system (consumer, converter, generator etc.) to other elements of the system. These dependencies can be used to quantify the flows in three-phase autonomous systems with two generators and to reproduce the given formula for n generators connected to one user. It was carried out to evaluate the exchange processes in parallel operation of two wind turbines of the same power included non-synchronously with different loading. This allowed us to choose the optimal moment of switching on or off the generators and to evaluate the likely mutual influence of the wind turbines when combined to feed one load at a specific time. The analysis of exchange processes during the parallel work of two wind turbines of different power, feeding the asymmetric load is carried out. The linearity of the exchange power depends on the power generators' difference, which in turn allows us to predict the behavior of a system powered by several wind turbines, taking into account the difference in conditions of their operation.