In aerospace starter/generator systems based on switched reluctance generators (SRG), the motor operates at very high speed, often exceeding tens of thousands of revolutions per minute, and the system runs in single-pulse mode, which generally results in limited dynamic performance. Due to the inherent nonlinearity of the motor, modeling and control are challenging. This paper proposes a method to improve dynamic performance using load current feedforward compensation. By analyzing the relationship between the phase current reference and the load current at different speeds through simulation, a two-dimensional lookup table is used to provide a feedforward term for the phase current reference. This enhances the system's dynamic response during transitions between different operating conditions. The effectiveness of the proposed control strategy is validated through simulation.

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Dynamic Performance Optimization of Switched Reluctance Generator Based on Feedforward Compensation

  • Zhelin Li,
  • Chuang Liu,
  • Zhiyuan Chai,
  • Tao Wang

摘要

In aerospace starter/generator systems based on switched reluctance generators (SRG), the motor operates at very high speed, often exceeding tens of thousands of revolutions per minute, and the system runs in single-pulse mode, which generally results in limited dynamic performance. Due to the inherent nonlinearity of the motor, modeling and control are challenging. This paper proposes a method to improve dynamic performance using load current feedforward compensation. By analyzing the relationship between the phase current reference and the load current at different speeds through simulation, a two-dimensional lookup table is used to provide a feedforward term for the phase current reference. This enhances the system's dynamic response during transitions between different operating conditions. The effectiveness of the proposed control strategy is validated through simulation.