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專利授權區
專利名稱(英)	Method of Current Control for Three-Phase Modular Multilevel Inverter with Inductance Change Allowed
專利家族	中華民國：I530082 美國：9,413,260
專利權人	國立清華大學 100%
發明人	林力群,于心宇,吳財福
技術領域	電子電機

專利摘要(英)
Current of a three-phase multilevel modular converter (MMC) is controlled. The control is a division-summation (D-.SIGMA.) method yet uses integration to replace the two steps of division and summation. Common D-.SIGMA. characteristic equations are used for all areas. Inductance changes are considered in the characteristic equations. Current source is used to control converter. Therefore, the current of the converter can be traced to sinusoidal reference current even when the inductance changes become big. The modulation method and the capacitor-voltage balancing method are submodule unified pulse width modulation (SUPWM) and sorted voltage-balancing method, respectively. The current control directly obtains a law of the current change on each conducting module of an arm. It does not need complex sector judgments and table look-ups. Thus, the amount of computation and memory for a processor can be relatively reduced.

專利摘要(英)

Current of a three-phase multilevel modular converter (MMC) is controlled. The control is a division-summation (D-.SIGMA.) method yet uses integration to replace the two steps of division and summation. Common D-.SIGMA. characteristic equations are used for all areas. Inductance changes are considered in the characteristic equations. Current source is used to control converter. Therefore, the current of the converter can be traced to sinusoidal reference current even when the inductance changes become big. The modulation method and the capacitor-voltage balancing method are submodule unified pulse width modulation (SUPWM) and sorted voltage-balancing method, respectively. The current control directly obtains a law of the current change on each conducting module of an arm. It does not need complex sector judgments and table look-ups. Thus, the amount of computation and memory for a processor can be relatively reduced.

聯絡資訊
承辦人姓名	李曉琪
承辦人電話	03-5715131 #31061
承辦人Email	hsiaochi@mx.nthu.edu.tw