Abstract
The evolving multiphase induction generators (MPIGs) with more than three phases are receiving prominence in high power generation systems. This paper aims at the development of a comprehensive model of the wind turbine driven seven-phase induction generator (7PIG) along with the necessary power electronic converters and the controller for grid interface. The dynamic model of the system is developed in MATLAB/Simulink (R2015b, The MathWorks, Inc., Natick, MA, USA). A synchronous reference frame phase-locked loop (SRFPLL) system is incorporated for grid synchronization. The modeling aspects are detailed and the system response is observed for various wind velocities. The effectiveness of the seven phase induction generator is demonstrated with the fault tolerant capability and high output power with reduced phase current when compared to the conventional 3-phase wind generation scheme. The response of the PLL is analysed and the results are presented.
Highlights
Electric power generation gained by exploring the use of renewable energy sources is a viable solution for reducing the dependency on fast depleting fossil fuels and to adhere to environmentally friendly conditions [1]
A seven phase wind electric generator is integrated integrated using the individual system components and the performance of the seven phase wind using the individual system components and the performance of the seven phase wind electric electric generator is analysed for varying wind speed [46]
A synchronous reference frame phase-locked loop (PLL) incorporated incorporated for the grid interface is simulated and analysed
Summary
Electric power generation gained by exploring the use of renewable energy sources is a viable solution for reducing the dependency on fast depleting fossil fuels and to adhere to environmentally friendly conditions [1]. Self-excited induction generators (SEIGs) are usually deployed for wind energy conversion systems in standalone applications with their inherent characteristics as mentioned in [3,4] Later they operated in a grid connected mode for distributed power generation in hybrid micro grids [5]. Dynamic analysis of the six phase induction generator for standalone wind power generation was investigated in [28], while steady state performance analysis of the machine, and its experimental validation have been carried out in [29,30,31]. The PLL response analyses various grid conditions such as unbalanced grid voltages, voltage sags, line to line (LL) faults, and line to line ground faults (LLG), and the results are explored
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