デッドビート制御によるアクティブフィルタの高性能電流制御

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タイトル別名
  • A Novel Method for Active Filter Current Regulation using Dead-beat Control
  • デッド ビート セイギョ ニ ヨル アクティブ フィルタ ノ コウセイノウ デンリュウ セイギョ

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The shunt-type active filter (AF), which is widely used due to the protection capability, is installed in parallel to the loads. It is considered as the ideal current source and it compensates the harmonic current of the load. However, the AF is practically realized by the current regulator using the voltage source type inverter, and it is very difficult to realize the AF current as an ideal current source, especially when it is controlled by the digital equipments.<br>A new control scheme for the line current detection type AF is proposed to improve the current regulation capability based on the digital dead-beat control. The current control scheme is achieved by controlling the intermediate voltage of the inverter output filter so that the AF output current is regulated using the dead-beat control law for the calculation of the pulse width of the PWM inverter. In the proposed scheme, the current regulation performance is improved much better than the conventional one.<br>The control method, mathematical analysis, the simulation results and the experimental results are presented in this paper.

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