Preprint Article Version 1 This version is not peer-reviewed

Grid Synchronization of Seven-Phase Wind Electric Generator Using d-q PLL

Version 1 : Received: 10 May 2017 / Approved: 11 May 2017 / Online: 11 May 2017 (08:01:17 CEST)

A peer-reviewed article of this Preprint also exists.

Chandramohan, K.; Padmanaban, S.; Kalyanasundaram, R.; Bhaskar, M.S.; Mihet-Popa, L. Grid Synchronization of a Seven-Phase Wind Electric Generator Using d-q PLL. Energies 2017, 10, 926. Chandramohan, K.; Padmanaban, S.; Kalyanasundaram, R.; Bhaskar, M.S.; Mihet-Popa, L. Grid Synchronization of a Seven-Phase Wind Electric Generator Using d-q PLL. Energies 2017, 10, 926.

Journal reference: Energies 2017, 10, 926
DOI: 10.3390/en10070926

Abstract

The evolving multiphase induction generators (MPIG) 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 necessary the power electronic converters and controller for grid interface. The dynamic model of the system is developed in Maltlab/Simulink. 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 seven phase induction generator is demonstrated with the fault tolerant capability and high output power with reduced phase current when compared to conventional 3-phase wind generation scheme. The response of the PLL is analyzed and the results are presented.

Subject Areas

multi-phase; synchronous frame; induction generator; PWM inverter; seven phase rectifier; PLL; grid

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