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This article proposes an improved droop controller for parallel inverters based on the virtual complex impedance (VCI). The proposed process consists of the use of a PI-Fractional Order (PI-FO) control algorithm and Artificial Neural Networks (ANNs) applied for the optimization and adaptation. The proposed control aims to improve the power flow control, for the development of a performant control strategy allowing participation in the various adjustment tasks, specifically, distribution and improvement of active (P) and reactive (Q) power sharing between power inverters and the improvement of the energy quality. The obtained results prove the performance of the proposed Droop controller. An acceptable stability of the line voltage, a good active and reactive power sharing with insignificant influence between them, an ideal frequency of f ≅ 50 Hz, and, a Total Distortion Harmonic (THD) rate of the line current, equal to 1.60%, very compliant with the recommended local grid code.

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Droop Controller of Parallel Inverters Using PI-Fractional Order with Artificial Neural Networks Optimization and Adaptation

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  • 发表日期：

    2025年

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  • Issam Abadlia,
  • Fateh Abdoune,
  • Antar Beddar

摘要

This article proposes an improved droop controller for parallel inverters based on the virtual complex impedance (VCI). The proposed process consists of the use of a PI-Fractional Order (PI-FO) control algorithm and Artificial Neural Networks (ANNs) applied for the optimization and adaptation. The proposed control aims to improve the power flow control, for the development of a performant control strategy allowing participation in the various adjustment tasks, specifically, distribution and improvement of active (P) and reactive (Q) power sharing between power inverters and the improvement of the energy quality. The obtained results prove the performance of the proposed Droop controller. An acceptable stability of the line voltage, a good active and reactive power sharing with insignificant influence between them, an ideal frequency of f ≅ 50 Hz, and, a Total Distortion Harmonic (THD) rate of the line current, equal to 1.60%, very compliant with the recommended local grid code.