Study on Directly Driven Wind Turbine with Permanent Magnet Synchronous Generators (D-PMSG)

2011 ◽  
Vol 383-390 ◽  
pp. 3528-3534 ◽  
Author(s):  
Zhong Yao Du ◽  
Rong Ju
Keyword(s):  
Wind Turbine ◽  
Wind Power ◽  
Mathematic Model ◽  
Module Structure ◽  
Synchronous Generators ◽  
Simulation Research ◽  
Permanent Magnet Synchronous Generators ◽  
Speed Modulation ◽  
Simulation Results ◽  
Turbine Speed

Recently, the wind power develops rapidly. In this paper, the mathematic model and vector control of D-PMSG are studied. This thesis involves in simulation research of wind turbine, speed modulation, coordinate transformation, SVPWM waves, main loop and the whole system based on module structure under the environment of MATLAB/SIMULINK. The simulation results indicate that PMSM has perfect characteristic and gives practical meanings for the studies of wind power.

scholarly journals Comparison of Flux-Switching and Interior Permanent Magnet Synchronous Generators for Direct-Driven Wind Applications Based on Nelder–Mead Optimal Designing

Mathematics ◽  
2021 ◽  
Vol 9 (7) ◽  
pp. 732
Author(s):  
Vladimir Prakht ◽  
Vladimir Dmitrievskii ◽  
Vadim Kazakbaev ◽  
Ekaterina Andriushchenko
Keyword(s):  
Wind Turbine ◽  
Permanent Magnet ◽  
Frequency Converter ◽  
Torque Ripple ◽  
Computational Time ◽  
Synchronous Generators ◽  
Advantages And Disadvantages ◽  
Permanent Magnet Synchronous Generators ◽  
Interior Permanent Magnet ◽  
Nelder Mead Algorithm

The permanent magnet flux-switching machine (PMFSM) is one of the most promising machines with magnets inserted into the stator. To determine in which applications the use of PMFSM is promising, it is essential to compare the PMFSM with machines of other types. This study provides a theoretical comparison of the PMFSM with a conventional interior permanent magnet synchronous machine (IPMSM) in the gearless generator of a low-power wind turbine (332 rpm, 51.4 Nm). To provide a fair comparison, both machines are optimized using the Nelder–Mead algorithm. The minimized optimization objectives are the required power of frequency converter, cost of active materials, torque ripple and losses of a generator averaged over the working profile of the wind turbine. In order to reduce the computational time, the substituting profile method is applied. Based on the results of the calculations, the advantages and disadvantages of the considered machines were revealed: the IPMSM has significantly lower losses and higher efficiency than the PMFSM, and the PMFSM requires much less rare-earth magnets and copper and is, therefore, cheaper in mass production.

DC-link voltage selection for a multi-MW wind turbine

2014 ◽  
Vol 33 (5) ◽  
pp. 1722-1740
Author(s):  
Poopak Roshanfekr ◽  
Torbjörn Thiringer ◽  
Sonja Lundmark ◽  
Mikael Alatalo
Keyword(s):  
Wind Turbine ◽  
Energy Efficient ◽  
Design Methodology ◽  
Synchronous Generators ◽  
Maximum Torque ◽  
Voltage Level ◽  
Content Type ◽  
Permanent Magnet Synchronous Generators ◽  
Selection For ◽  
Maximum Torque Per Ampere

Purpose – The purpose of this paper is to investigate how the dc-link voltage for the converter of a wind generator should be selected, i.e. to determine the losses in the generator and the converter when using various dc-link voltage levels. Design/methodology/approach – To presents the efficiency evaluation of 5 MW wind turbine generating systems, two 5 MW surface mounted permanent magnet synchronous generators (PMSG) with medium and low rated voltage is designed. A two-level transistor converter is considered for ac/dc conversion. Three different dc-link voltage levels are used. By using these voltage levels the PMSG is utilized in slightly different ways. Findings – It is found that the system with the lower voltage machine has slightly higher annual energy efficiency compare to the higher voltage system. Furthermore, it is shown that the best choice for the dc-link voltage level is a voltage between the minimum voltage which gives the desired torque and the voltage which gives Maximum Torque Per Ampere. Originality/value – A procedure as well as investigations with quantified results on how to find the highest complete drive system efficiency for a wind turbine application. Based on two given PMSG, the most energy-efficient dc-link voltage has been established.

A Comparative Analysis of Three-Phase, Multi-Phase and Dual Stator Axial Flux Permanent Magnet Synchronous Generator for Vertical Axis Wind Turbine

2013 ◽  
Vol 446-447 ◽  
pp. 709-715 ◽  
Author(s):  
M. Shahrukh Adnan Khan ◽  
Rajprasad K. Rajkumar ◽  
Rajparthiban K. Rajkumar ◽  
C.V. Aravind
Keyword(s):  
Wind Turbine ◽  
Permanent Magnet ◽  
Synchronous Generator ◽  
Vertical Axis ◽  
Vertical Axis Wind Turbine ◽  
Synchronous Generators ◽  
Permanent Magnet Synchronous Generators ◽  
Wind Turbine System ◽  
Three Phase ◽  
Multi Phase

In this paper, the performances of all the three kinds of Axial type Multi-Pole Permanent Magnet Synchronous Generators (PMSG) namely Three-phase, Multi-phase or Five Phase and Double Stator fixed in Vertical Axis Wind Turbine (VAWT) were investigated and compared in order to get an optimal system. MATLAB/Simulink had been used to model and simulate the wind turbine system together with all the three types Permanent Magnet Generators. It was observed from the result that with the increasing number of pole in both low and high wind speed, the five phase generator produced more power than the other two generators. In general, it was observed that the responses of the Multi-phase generator at both high and low speed wind showed promising aspect towards the system followed by Dual Stator. But with the change of the variables such as wind velocity, turbine height, radius, area together with the generator pole pairs and stator resistance, the optimum system should be chosen by considering the trade-off between different configurations which were firmly analyzed and described in this paper.

Multipolar permanent-magnet synchronous generators intended for wind power plants

2012 ◽  
Vol 59 (14) ◽  
pp. 1035-1043
Author(s):  
L. K. Kovalev ◽  
K. L. Kovalev ◽  
Ye. Ye. Tulinova ◽  
N. S. Ivanov
Keyword(s):  
Permanent Magnet ◽  
Wind Power ◽  
Power Plants ◽  
Synchronous Generators ◽  
Permanent Magnet Synchronous Generators ◽  
Wind Power Plants

Characteristic Simulation of Wind Turbine Based on an Induction Motor

2011 ◽  
Vol 347-353 ◽  
pp. 2318-2322 ◽  
Author(s):  
Hua Jiao ◽  
Shao Hua Wang ◽  
Jun Ting Ma ◽  
Yi Gong Zhang
Keyword(s):  
Power Generation ◽  
Simulation Model ◽  
Wind Turbine ◽  
Induction Motor ◽  
Wind Power ◽  
Wind Power Generation ◽  
Output Torque ◽  
Power Generation Technology ◽  
Simulation Results ◽  
Generation Technology

In order to better research wind power generation technology in the laboratory, this paper analyzes the characteristics of the wind turbine. Then on the basis of the analysis results, a wind turbine simulation model is built in MATLAB/SIMULINK and a simple torque imitation scheme is proposed. The program imitates the output torque characteristics of wind turbine, by controlling the induction motor torque current to control its output torque. The simulation results verify the feasibility of the wind turbine imitation program. It lays the foundation for the wind energy study.

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