Design, Modeling, and Control of a Novel Hybrid-Excited Flux-Bidirectional-Modulated Generator-Based Wind Power Generation System

Qingsong Wang, Shuangxia Niu

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

This paper proposes a novel hybrid excited generator, which is suitable for a variable-speed wind power generation system. Two sets of excitation sources are employed, which are permanent magnets (PMs) on the rotor and the field windings on the stator. The rotor is design with PM-iron structure, namely the PMs and iron poles are alternatively located in rotor, which can provide PM excitation and flux modulating simultaneously. Meanwhile, the adjacent stator teeth are designed with different height, which enables the stator with flux modulating effect, and, therefore, bidirectional flux modulating can be achieved. Some specific harmonics excited by the rotor PMs can be effectively adjusted by the field current, and the back electromotive force and electromagnetic torque can be regulated accordingly. Therefore, the proposed generator can achieve constant voltage control and maximum power point tracking control by controlling the field current. The design considerations and field regulating principle are analytically investigated. An improved Tabu search algorithm is used to optimize the proposed generator, and finite-element method is used to realize preliminary study of the electromagnetic performances. A prototype is manufactured and experimental tests are conducted to verify the theoretical analysis and control strategies.
Original languageEnglish
Pages (from-to)3086-3096
Number of pages11
JournalIEEE Transactions on Power Electronics
Volume33
Issue number4
Early online date15 May 2017
DOIs
Publication statusPublished - 1 Apr 2018
Externally publishedYes

Keywords

  • Bidirectional flux modulating
  • constant voltage
  • maximum power point tracking (MPPT) control
  • permanent magnet (PM)-iron structure

Fingerprint Dive into the research topics of 'Design, Modeling, and Control of a Novel Hybrid-Excited Flux-Bidirectional-Modulated Generator-Based Wind Power Generation System'. Together they form a unique fingerprint.

Cite this