Design and implementation of current based vector control model of brushless doubly fed induction generator

This paper is aimed at proposing a current based vector control model of the brushless doubly fed induction generator, modelling the presented control method, as well as implementing the proposed algorithm by DSP. In order to achieve the purpose, by presenting a detailed coupled circuit model of BDFIG, the vector model and then the current based vector control algorithm of the mentioned machine are acquired. The way of independent control of torque and power, and also the structure of speed controller amongst the proposed control model are discussed. Additionally, the concepts behind the proposed structure of the speed control system and the way of determining the model parameters are explained. Then the general model is simulated in Matlab/Simulink environment. In continue, in order to get the simulation results in the real drive system, an efficient BDFIG´s driver with the purpose of attaining the acquired results of simulation is built. The implementation process, including the design and selection of the driver components, and the implementation of the algorithm on DSP is presented with details. The evaluation of implementation results reveals that the designed controller, based on the proposed algorithm, meets drive requirements sufficiently with an appropriate dynamic performance and a stable operation in the duration of working in generator mode.