Direct Virtual Torque Control for Doubly Fed Induction Generator Grid Connection

作者：Arbi Jihen^*; Ghorbal Manel Jebali Ben; Slama Belkhodja Ilhem; Charaabi Lotfi

来源：IEEE Transactions on Industrial Electronics, 2009, 56(10): 4163-4173.

DOI：10.1109/TIE.2009.2021590

• Direct torque control (DTC)
• doubly fed induction generator (DFIG)
• field-programmable gate array (FPGA)
• grid connection
• virtual torque
• wind energy

This paper presents a grid-connection control strategy of doubly fed induction generator wind system based on the direct control of both a virtual torque and rotor flux of the generator. This control is achieved with no proportional-integral regulator and requires the measurement of only grid voltages, rotor currents, and rotor position. The same switching table is used for grid synchronization and for running process. A field-programmable-gate-array-based design of the proposed control is developed and tested on a 4-kW experimental prototype. Experimental results are provided to show the effectiveness of the fast and soft grid-connection method developed.

• 出版日期2009-10