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Rotor Position Synchronization in Central-Converter Multi-Motor Electric Actuation Systems

Author

Listed:
  • Cláudio de Andrade Lima

    (Electrical and Computer Engineering Department, Colorado State University, 200 W Lake Street, Fort Collins, CO 80523, USA)

  • James Cale

    (Electrical and Computer Engineering Department, Colorado State University, 200 W Lake Street, Fort Collins, CO 80523, USA
    Systems Engineering Department, Colorado State University, 200 W Lake Street, Fort Collins, CO 80523, USA)

  • Kamran Eftekhari Shahroudi

    (Systems Engineering Department, Colorado State University, 200 W Lake Street, Fort Collins, CO 80523, USA
    Woodward, Inc., 1081 Woodward Way Fort Collins, Colorado, CO 80524, USA)

Abstract

The aerospace industry is increasingly transitioning from hydraulic and pneumatic drives to power-electronic based drive systems for reduced weight and maintenance. Electromechanical thrust reverse actuation systems (EM-TRAS) are currently being considered as a replacement for mechanical based TRAS for future aircraft. An EM-TRAS consists of one or more power-electronic drives, electrical motors, and gear-trains that extend/retract mechanical members to produce a drag force that decelerates the aircraft upon landing. The use of a single (“central”) power electronic converter to simultaneously control a set of parallel induction machines is a potentially inexpensive and robust method for implementing EM-TRAS. However, because the electrical motors may experience different shaft torques—arising from differences in wind forces and a flexible nacelle—a method to implement rotor position synchronization in central-converter multi-motor (CCMM) architectures is needed. This paper introduces a novel method for achieving position synchronization within CCMM architecture by using closed-loop feedback of variable stator resistances in parallel induction machines. The feasibility of the method is demonstrated in several case studies using electromagnetic transient simulation on a set of parallel induction machines experiencing different load torque conditions, with the central converter implementing both voltage-based and current-based primary control strategies. The key result of the paper is that the CCMM architecture with proposed feedback control strategy is shown in these case studies to dynamically drive the position synchronization error to zero. The initial findings indicate that the CCMM architecture with induction motors may be a viable option for implementing EM-TRAS in future aircraft.

Suggested Citation

  • Cláudio de Andrade Lima & James Cale & Kamran Eftekhari Shahroudi, 2021. "Rotor Position Synchronization in Central-Converter Multi-Motor Electric Actuation Systems," Energies, MDPI, vol. 14(22), pages 1-25, November.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:22:p:7485-:d:675489
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    References listed on IDEAS

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    1. Jannati, Mohammad & Anbaran, Sajad Abdollahzadeh & Asgari, Seyed Hesam & Goh, Wee Yen & Monadi, Ali & Aziz, Mohd Junaidi Abdul & Idris, Nik Rumzi Nik, 2017. "A review on Variable Speed Control techniques for efficient control of Single-Phase Induction Motors: Evolution, classification, comparison," Renewable and Sustainable Energy Reviews, Elsevier, vol. 75(C), pages 1306-1319.
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