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Research on grid-connected stability control of full-power conversion wind turbine controlled by grid-side converter coupling voltage
- Source :
- International Conference on Mechanical Engineering, Measurement Control, and Instrumentation.
- Publication Year :
- 2021
- Publisher :
- SPIE, 2021.
-
Abstract
- In the context of high proportion of wind power access, the stability of wind power as a power source has always been paid attention to, and the voltage stability of full-power conversion wind turbines is closely related to the control strategy of its converter control system. This paper proposes a new grid-side converter control strategy to maintain the stability of the grid-connected wind turbines. The contributions of this paper are: 1) Analyse the grid-side converter and establish its mathematical model to study the control of the wind turbine; 2) Add a voltage coupling controller to maintain the stability of the DC bus voltage; 3) Analyze the difference between the grid-connected voltage, current, active and reactive state variables before and after the wind turbine failure. The proposed control scheme for grid-side converter voltage coupling control will be tested in the full power conversion wind turbine set up in MATLAB/SIMULINK. The simulation results show the effectiveness and good dynamic performance of the scheme. The voltage oscillation has been alleviated to a large extent, and the DC bus voltage can basically be restored to its rated value.
Details
- Database :
- OpenAIRE
- Journal :
- International Conference on Mechanical Engineering, Measurement Control, and Instrumentation
- Accession number :
- edsair.doi...........0851a33eecd795ae469ee94e202c1f16