Simulacija in analiza vetrnih elektrarn v okolju Simulink ob motnjah

Turk, Janže (author), Ažbe, Valentin (mentor)

Diplomska naloga obravnava odziv vetrne elektrarne na različne ekstremne pojave v elektroenergetskem omrežju, s poudarkom na analizi obnašanja vetrne turbine med kratkimi stiki. Obravnavani problem je razumevanje odziva sistema in vloga regulacije pri zagotavljanju stabilnega delovanja med motnjo v omrežju. Za analizo sta bila uporabljena dva že izdelana simulacijska modela vetrne elektrarne, ki vključujeta možnosti nastavljanja, vnaprej pripravljene podsisteme in regulacijo. Posebna prednost drugega modela je, da predstavlja turbino tipa 4, ki omogoča popoln nadzor nad tokovi in napetostmi ter s tem realističnejšo analizo obratovanja med omrežnimi motnjami. Izvedeno je bilo več simulacij različnih vrst kratkih stikov, pri čemer je bil poseben poudarek namenjen vplivu regulacijskega parametra Imax, ki omejuje velikost kratkostičnih tokov. Rezultati so pokazali, da na dinamični odziv vetrne turbine pri motnjah odločilno vpliva uporabljena regulacija. Ni mogoče podati enotne rešitve odziva, saj se ta razlikuje glede na proizvajalca in način, kako je regulacija vgrajena in nastavljena. Analiza na drugem modelu je potrdila, da parameter Imax pomembno določa dinamiko in stabilnost toka. S spreminjanjem tega parametra se privede do različnih rezultatov simulacij. Glavni zaključek naloge je, da razumevanje delovanja regulacije in njenega vpliva na odziv vetrne turbine predstavlja ključen dejavnik pri načrtovanju vključevanja vetrnih elektrarn v elektroenergetski sistem.

• Language: Slovenian
• Keywords: vetrna elektrarna, kratki stik, regulacija, simulacijski model, Imax
• Work type: Bachelor thesis/paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: FE - Faculty of Electrical Engineering
• Year: 2025
• PID: 20.500.12556/RUL-172679
• COBISS.SI-ID: 263612163
• Publication date in RUL: 10.09.2025

Secondary language

• Language: English
• Title: Analysis of Simulink wind farm model performance during disturbances

Abstract

This thesis examines the response of a wind power plant to various extreme events in the power system, with a focus on analyzing the behavior of a wind turbine during short circuits. The problem addressed is the understanding of the system response and the role of control in ensuring stable operation during a grid disturbance. For the analysis, two predeveloped simulation models of a wind power plant were used, both including adjustable parameters, preprepared subsystems, and control structures. A particular advantage of the second model is that it represents a type 4 wind turbine, which allows complete control over currents and voltages and thus enables a more realistic analysis of operation during grid disturbances. Several simulations of different types of short circuits were performed, with special emphasis placed on the influence of the control parameter Imax, which limits the magnitude of the short-circuit currents. The results showed that the dynamic response of the wind turbine during disturbances is strongly dependent on the applied control. A unified solution of the response cannot be provided, as it varies depending on the manufacturer and the way the control is implemented and tuned. The analysis on the second model confirmed that the parameter Imax significantly influences the dynamics and stability of the current. By adjusting this parameter, different simulation outcomes are obtained. The main conclusion of the thesis is that understanding the functioning of control and its impact on the wind turbine response is a key factor in planning the integration of wind power plants into the power system.

• Keywords: wind power plant, short circuit, control, simulation model, Imax