An efficient method for speed control of induction wind turbine generator with dual AC-DC-AC converter

2021 ◽  
pp. 0309524X2110635
Author(s):  
Nikola D Pesut ◽  
Rade M Ciric
Keyword(s):  
Wind Speed ◽  
Wind Power ◽  
Poor Performance ◽  
Speed Control ◽  
Power Converter ◽  
Advantages And Disadvantages ◽  
Ac Power ◽  
Control Concept ◽  
Asynchronous Generator ◽  
Turbine Speed

One of the key issues in the efficient conversion of wind kinetic energy into electricity is the regulation of turbine speed to achieve maximum electrical power generation. The asynchronous generator with full load double AC-DC-AC power converter has not been widely used due to its poor performance in low wind speed. In this paper a method for turbine speed control of induction generator with full-scale double AC-DC-AC power converter to maximize absorbed wind power in the wide wind speed range, using the calculated maximum turbine power as a reference, is proposed. The configuration of an AC-DC-AC converter for connecting an asynchronous generator to the grid, as well as modeling of Pulse Width Modulation converter is presented in detail. Performance of the proposed control concept to maximize the absorbed wind power is verified through the simulation in MATLAB®. Finally, the advantages and disadvantages of the proposed control concept are discussed.

Wind Turbine Speed Control with Maximum Power Extracting Based on Fuzzy Logic

2014 ◽  
Vol 698 ◽  
pp. 168-172 ◽  
Author(s):  
Vadim Z. Manusov ◽  
Sherzod K. Khaldarov
Keyword(s):  
Fuzzy Logic ◽  
Wind Speed ◽  
Wind Turbine ◽  
Speed Control ◽  
Maximum Power ◽  
Continuous Control ◽  
Control Scheme ◽  
Fuzzy Logic Approach ◽  
Logic Approach ◽  
Turbine Speed

In this paper, an adapted control scheme based on fuzzy logic approach to adjusting turbine speed so as to track the maximum power points is proposed. This scheme facilitates continuous control of wind turbine speed, adapting to the changing wind speed.

scholarly journals A Sensorless Wind Speed and Rotor Position Control of PMSG in Wind Power Generation Systems

2020 ◽  
Vol 12 (20) ◽  
pp. 8481
Author(s):  
Ahmed G. Abo-Khalil ◽  
Ali M. Eltamaly ◽  
Praveen R.P. ◽  
Ali S. Alghamdi ◽  
Iskander Tlili
Keyword(s):  
Wind Speed ◽  
Wind Power ◽  
Permanent Magnets ◽  
Position Control ◽  
Synchronous Generator ◽  
Power Converter ◽  
Support Vector ◽  
Rotor Position ◽  
Wide Range ◽  
Full Power

Currently, among the topologies of wind energy conversion systems, those based on full power converters are growing. The permanent magnet synchronous generator (PMSG) uses full power converter to allow wide speed ranges to extract the maximum power from the wind. In order to obtain efficient vector control in a synchronous generator with permanent magnets, it is necessary to know the position of the rotor. The PMSGs work over a wide range of speed, and it is mandatory to measure or estimate their speed and position. Usually, the position of the rotor is obtained through Resolver or Encoder. However, the presence of these sensor elements increases the cost, in addition to reducing the system’s reliability. Moreover, in high wind power turbine, the measured wind speed by the anemometer is taken at the level of the blades which makes the measurement of the wind speed at a single point inaccurate. This paper is a study on the sensorless control that removes the rotor position, speed sensors and anemometer from the speed control. The estimation of the rotor position is based on the output of a rotor current controller and the wind speed estimator is based on the opposition-based learning (OBL), particle swarm optimization and support vector regression.

scholarly journals The main types of wind turbines-generators in the power supply system

2022 ◽  
Vol 23 (5) ◽  
pp. 24-33
Author(s):  
S. K. Sheryazov ◽  
S. S. Issenov ◽  
R. M. Iskakov ◽  
A. B. Kaidar
Keyword(s):  
Wind Energy ◽  
Wind Power ◽  
Wind Turbines ◽  
Smart Grids ◽  
Power Plants ◽  
Power Conversion ◽  
Power Converter ◽  
Wind Energy Conversion ◽  
Wind Power Plants ◽  
Asynchronous Generator

PURPOSE. Conduct a detailed analysis of existing wind turbines. Analyze the role, place and features of the functioning of wind power plants. Provide various options for generators and schemes for converting wind energy into electricity. Provide recommendations for improving the reliability of wind turbines in smart grids.METHODS. The article was prepared using analytical methods, statistical, theoretical, factorial and technical methods.RESULTS. A fixed speed asynchronous generator used in a wind power conversion system (WECS) without a power converter interface draws a significant portion of the reactive power from the grid. This configuration features simple, reliable operation. Wind turbine asynchronous generator with dual power supply. can improve overall power conversion efficiency by performing maximum power point tracking (MPPT), and an increase in speed of about 30% can improve dynamic performance and increase resilience to system disturbances that are not available for turbine types 1 and 2. The use of full-scale 100% power converters will significantly increase the productivity of SPEV wind energy conversion systems, but will slightly increase the cost of the power converter, up to 7% - 12% of the total equipment cost. By using a large number of pole pairs for all types of permanent magnet synchronous generator (PMG), the turbine gearbox can be removed. This type of wind energy conversion system is more resilient to grid disruptions compared to type 1, 2 and 3 wind systems. The review shows that types 3 and 4 technologies are used to most efficiently sell and recycle wind turbines in electricity markets.CONCLUSION. The article analyzes the features of the functioning of wind power plants operating on the grid. Various options for generators and schemes for converting wind energy into electricity are presented. A detailed analysis of existing wind turbines is provided. Recommendations are given for improving the reliability and efficiency of wind power plants in smart grids.

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