應用于電網絡試驗臺的濾波器設計

摘要：本文設計了用于電網絡試驗臺的混合有源濾波器，濾波器主電路采用二極管箝位型三電平逆變器拓撲結構，電流控制策略采用電流雙滯環控制。仿真結果表明，所設計濾波器能大大降低電網絡試驗臺系統中諧波含量。 敘詞：電網絡試驗臺 有源濾波器 電流雙滯環控制 Abstract：The paper designs hybrid active power filter for grid testing units. The main circuit of the filter adopts topology structure of diode-clamping three-level inverter, and current control strategy applies current double hysteresis control. Simulated experiments tell that the designed filter can lower greatly the harmonic in the system of the grid testing unit. Keyword：Grid Testing Unit, Active Filter, Current Double Hysteresis Control