高低頻補償轉換裝置及其方法

專利類型

發明

專利國別 (專利申請國家)

中華民國

專利申請案號

109115125

專利證號

I 750649

專利獲證名稱

高低頻補償轉換裝置及其方法

專利所屬機關 (申請機關)

國立清華大學

獲證日期

2021/12/21

技術說明

一種高低頻補償轉換裝置用以將直流電傳輸至交流負載模組。低頻轉換器模組受低頻開關責任比控制，第一輸入端電性連接直流電，第一輸出端輸出第一電流，且第一電流包含低頻漣波電流。高頻轉換器模組並聯於低頻轉換器模組並受高頻開關責任比控制，第二輸入端電性連接直流電，第二輸出端輸出第二電流。低頻轉換器模組依據低頻開關責任比控制而產生第一電流。高頻開關責任比依據低頻漣波電流調整，高頻轉換器模組依據高頻開關責任比控制而產生第二電流，且第二電流對第一電流進行漣波補償。藉此，可消除低頻漣波電流且提高動態響應。 A power converting device with a high frequency inverter module compensating a low frequency inverter module is for transmitting a direct current (DC) power to an alternating current load module. The low frequency inverter module is controlled by a low frequency duty ratio. A first inputting end is electrically connected to the DC power, and a first current includes a low-frequency ripple current. The high frequency inverter module is connected to the low frequency inverter module in parallel and controlled by a high frequency duty ratio. A second inputting end is electrically connected to the DC power and outputs a second current. The low frequency inverter module is controlled according to the low frequency duty ratio to generate the first current. The high frequency duty ratio is adjusted according to the low-frequency ripple current. The high frequency inverter module is controlled according to the high frequency duty ratio to generate the second current, and the second current is for compensating ripples of the first current. Therefore, it is favorable for eliminating the low-frequency ripple current and improving the dynamic response.

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