A novel control strategy of a variable-speed doubly-fed-induction-generator-based wind energy conversion system  

作　　者：Shibani Prasad Mohapatra Pradipta Kishore Dash 

机构地区：[1]Department of Electrical Engineering,Siksha O Anusandhan Deemed to be University,Bhubaneswar-751030,Odisha,India [2]Multidisciplinary Research Cell,Siksha O Anusandhan Deemed to be University,Bhubaneswar-751030,Odisha,India

出　　处：《Clean Energy》2024年第1期153-170,共18页清洁能源（英文）

摘　　要：This paper aims to address the issue of control of a variable-speed wind turbine based on doubly-fed induction generators. In this work,an effort is made to extract the maximum efficiency from a doubly-fed induction generator-based variable-speed wind turbine by controlling the rotor current. In the first step, a maximum power point tracking technique is used to extract the maximum power from theturbine. Then a stator-flux-oriented vector control strategy is employed to control the rotor-side current. Subsequently, a grid voltagevector-oriented control strategy is used to control the grid-side system of the grid-connected generator. Considering the nonlinearityand parameter uncertainty of the system, an active disturbance rejection controller with a sliding-mode-based extended-state observeris developed for the above-mentioned control strategies. Furthermore, the stability of the controller is tested and the performance of thecontroller is compared with the classical proportional-integral controller based on disturbance rejection, robustness and tracking capability in a highly non-linear wind speed variation scenario. Modelling, control and comparison are conducted in the MATLAB®/Simulink®environment. Finally, a real-time hardware set-up is presented using the dSPACE ds-1104 R&D processing board to validate the controlscheme. From the result of the experiments, it is seen that the proposed controller takes 10-15 control cycles to settle to its steady-statevalues, depending on the control loop, whereas the conventional proportional-integral controller takes 60-75 control cycles. As a result,the settling time for the proposed control scheme is shorter than that of the proportional-integral controller.

关 键 词：doubly-fed induction generator variable-speed wind turbine vector control active disturbance rejection controller stability analysis 

分 类 号：TM315[电气工程—电机]