VECTOR CONTROL OF PMSG FOR GRID-CONNECTED WIND TURBINE APPLICATIONS
Authors
Mehrzad, Daryoush ; Luque, Javier ; Capella, Marc
Term
4. term
Education
Publication year
2009
Abstract
Wind power is expanding and must meet grid interconnection requirements (grid codes). This thesis examines how to control the grid-side converter (the power electronics that connect a wind turbine to the grid) to keep the DC-link voltage stable and to regulate reactive power (power that supports grid voltage). We implement and compare two common approaches: control in a synchronous reference frame and in a stationary reference frame (two ways of mathematically representing currents and voltages for control). We model and simulate the grid-side part of the turbine in MATLAB/Simulink and run a series of tests. We also build a small-scale laboratory setup to validate the models. The two strategies are compared, and the simulation results are confirmed by lab measurements.
Vindenergi er i vækst og skal leve op til krav for tilslutning til elnettet (grid codes). Denne afhandling undersøger styringen af netside-omformeren (effektelektronikken, der forbinder en vindmølle med elnettet) for at holde DC-link-spændingen stabil og regulere reaktiv effekt (effekt, der understøtter netspændingen). Vi implementerer og sammenligner to udbredte tilgange: styring i en synkron referenceramme og i en stationær referenceramme (to måder at beskrive strømme og spændinger matematisk til styring). Vi modellerer og simulerer netsiden af vindmøllesystemet i MATLAB/Simulink og gennemfører en række tests. Derudover bygger vi en småskala laboratorieopsætning for at validere modellerne. De to strategier sammenlignes, og resultaterne bekræftes i laboratoriet.
[This apstract has been rewritten with the help of AI based on the project's original abstract]