離散化双線形モデルに基づくブーストコンバータ平均出力電圧の非線形出力フィードバック制御

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  • Nonlinear Output Feedback Control for Average Output Voltage of Boost Converters Based on their Discretized Bilinear Model
  • リサンカソウセンケイ モデル ニ モトズク ブーストコンバータ ヘイキン シュツリョク デンアツ ノ ヒセンケイ シュツリョク フィードバック セイギョ

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<p>This paper is concerned with nonlinear output feedback control for the average output voltage of boost converters through their discretized bilinear models. We first propose a bilinear observer synthesis method for the discretized bilinear model by effectively using the fact that the control input corresponds to the duty ratio and hence has upper and lower bounds whose values can be exploited in the synthesis. We next employ a kind of Lyapunov method for the synthesis of state-feedback controllers with integral compensation. Here, the integral compensation aims at making the (approximate) average output voltage track its reference input and is introduced with its implementability taken into account under limited data acquisition performance and operational speed of digital signal processors. Finally, we carry out control experiments with the combined use of the designed state feedback and bilinear observer and verify the effectiveness of the overall control strategy.</p>

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