New Adaptive Control Strategy for a Wind Turbine Permanent Magnet Synchronous Generator (PMSG)

被引：5
|
作者：
Cao, Wenping [1 ]
Xing, Ning [2 ]
Wen, Yan [1 ]
Chen, Xiangping [3 ]
Wang, Dong [4 ]
机构：
[1] Anhui Univ, Sch Elect Engn & Automat, Hefei 230610, Peoples R China
[2] Aston Univ, Coll Engn & Appl Sci, Birmingham B4 7ET, W Midlands, England
[3] Guizhou Univ, Sch Elect Engn, Guiyang 550025, Peoples R China
[4] Goldwind Sci Technol Co Ltd, Beijing 100176, Peoples R China
来源：
INVENTIONS | 2021年 / 6卷 / 01期
关键词：
current-source converter (CSC); model predictive control (MPC); pulse-width modulation (PWM); voltage source converter (VSC); model reference adaptive system (MRAS); FIELD-ORIENTED CONTROL; BACK-EMF; SENSORLESS CONTROL; CONVERTER; INVERTER; OBSERVER;
D O I：
10.3390/inventions6010003
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
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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页码：1 / 16
页数：16
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