scholarly journals Designing and Modeling of Control Strategies Based on Multi-Objective Optimization for a Permanent-Magnet Synchronous Generator Wind Turbine: A Study Based on the Grid Errors and Wind Speed

2019 ◽  
Vol 13 (4) ◽  
pp. 60-69
Author(s):  
Ehsan Ganji ◽  
Mehdi Mahdavian ◽  
Iman Eshaghpour ◽  
Mojtaba Janghorban
2021 ◽  
Vol 3 (1) ◽  
pp. 29-49
Author(s):  
Asif Khan ◽  
Saim Memon ◽  
Zafar Said

Integration of small-scale wind energy system to residential buildings for a target to achieve net-zero CO2 emissions is a revolutionary step to reduce the dependency on the national grid. In this paper, a predictive 20 kVA permanent magnet synchronous generator (PMSG) based small scale wind turbine is investigated at dynamic wind speed with a sensing control system to manage and monitor the power flow for a supply to a typical residential building. A control system is applied that regulates the power from the wind turbine. Results indicate that the proposed control system maximizes the power efficiency within the system. The maximum power generation capacity of the wind turbine is 20 kWh with 415 VAC and 50 Hz frequency. A storage system of 19.2 kWh that supplies the energy to the load side. The applied control unit improves the energy management and protects the power equipment during the faults. The research is conducted using MATLAB/SIMULINK and mathematical formulations.


2013 ◽  
Vol 446-447 ◽  
pp. 704-708 ◽  
Author(s):  
M. Shahrukh Adnan Khan ◽  
Rajprasad K. Rajkumar ◽  
Rajparthiban K. Rajkumar ◽  
C.V. Aravind

This paper focuses on developing an optimal system of Vertical Axis Wind Turbine (VAWT) for low wind speed. After studying the performance analysis of the turbine parameters for speeds less than 5 m/s, a realistic model was designed in Matlab/ Simulink that could produce suitable torque for low wind condition. The Multi-pole Axial Flux Permanent Magnet Synchronous Generator (PMSG) had been proven to be a good choice for this optimal design as it performed well enough to generate sufficient amount of voltage and power. The turbine design parameters such as the radius, height and wind speed were varied to observe the change in generator output voltage and power and based on that an optimal design for Permanent Magnet Synchronous Generator was proposed in this paper. The simulation results were tested with an actual Permanent Magnet Synchronous Generator in laboratory applying the optimized turbine parameters and were compared accordingly for error calculation. Lastly, future possibility of improvement and the limitations had been proposed to develop the system further.


Inventions ◽  
2020 ◽  
Vol 6 (1) ◽  
pp. 3
Author(s):  
Wenping Cao ◽  
Ning Xing ◽  
Yan Wen ◽  
Xiangping Chen ◽  
Dong Wang

Wind energy conversion systems have become a key technology to harvest wind energy worldwide. In permanent magnet synchronous generator-based wind turbine systems, the rotor position is needed for variable speed control and it uses an encoder or a speed sensor. However, these sensors lead to some obstacles, such as additional weight and cost, increased noise, complexity and reliability issues. For these reasons, the development of new sensorless control methods has become critically important for wind turbine generators. This paper aims to develop a new sensorless and adaptive control method for a surface-mounted permanent magnet synchronous generator. The proposed method includes a new model reference adaptive system, which is used to estimate the rotor position and speed as an observer. Adaptive control is implemented in the pulse-width modulated current source converter. In the conventional model reference adaptive system, the proportional-integral controller is used in the adaptation mechanism. Moreover, the proportional-integral controller is generally tuned by the trial and error method, which is tedious and inaccurate. In contrast, the proposed method is based on model predictive control which eliminates the use of speed and position sensors and also improves the performance of model reference adaptive control systems. In this paper, the proposed predictive controller is modelled in MATLAB/SIMULINK and validated experimentally on a 6-kW wind turbine generator. Test results prove the effectiveness of the control strategy in terms of energy efficiency and dynamical adaptation to the wind turbine operational conditions. The experimental results also show that the control method has good dynamic response to parameter variations and external disturbances. Therefore, the developed technique will help increase the uptake of permanent magnet synchronous generators and model predictive control methods in the wind power industry.


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