THREE-PHASE VOLTAGE-TYPE INVERTER AND METHOD FOR COMPENSATING FOR LOSS VOLTAGE THEREOF

A three-phase voltage-type inverter is disclosed. The three-phase voltage-type inverter comprises: a conversion unit for converting a three-phase AC current to a two-phase DC current; a calculation unit for detecting the angle between a reference axis of the three-phase AC current and a reference ax...

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Bibliographische Detailangaben
Hauptverfasser:	KIM, Tae-woong, SIM, Dong-jun, CHO, Choon-ho
Format:	Patent
Sprache:	eng ; fre ; kor
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROL OR REGULATION THEREOF CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION
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Beschreibung
Zusammenfassung:	A three-phase voltage-type inverter is disclosed. The three-phase voltage-type inverter comprises: a conversion unit for converting a three-phase AC current to a two-phase DC current; a calculation unit for detecting the angle between a reference axis of the three-phase AC current and a reference axis of the two-phase DC current, adding the detected angle and the phase difference of the two-phase DC current together, thereby calculating a current polarity angle, and calculating a three-phase current polarity value using a value obtained by evenly dividing the calculated current polarity angle by six; and a voltage compensation unit for compensating for a loss voltage using the calculated three-phase current polarity value. La présente invention concerne un onduleur du type à tension triphasée. L'onduleur du type à tension triphasée comprend : une unité de conversion permettant de convertir un courant alternatif triphasé en un courant continu biphasé ; une unité de calcul permettant de détecter l'angle entre un axe de référence du courant alternatif triphasé et un axe de référence du courant continu biphasé, d'additionner entre eux l'angle détecté et la différence de phase du courant continu biphasé, ce qui permet de calculer un angle de polarité de courant, et de calculer une valeur de polarité de courant triphasé à l'aide d'une valeur obtenue en divisant de manière uniforme par six l'angle de polarité de courant calculé ; et une unité de compensation de tension permettant de compenser une perte de tension à l'aide de la valeur de polarité de courant triphasé calculée. 3상 전압형 인버터가 개시된다. 본 3상 전압형 인버터는, 3상 교류 전류를 2상 직류 전류로 변환하는 변환부, 3상 교류 전류의 기준 축과 2상 직류 전류의 기준 축 간의 각도를 검출하고, 검출된 각도와 2상 직류 전류의 위상차를 합산하여 전류 극성 각도를 산출하고, 산출된 전류 극성 각도를 6 등분한 값을 이용하여 3상 전류 극성 값을 산출하는 연산부 및 산출된 3상 전류 극성 값을 이용하여 손실 전압을 보상하는 전압 보상부를 포함한다.