Reducing common mode voltage and bearing currents in quasi - resonant DC - link inverter - Publikacja - MOST Wiedzy

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Reducing common mode voltage and bearing currents in quasi - resonant DC - link inverter

Abstrakt

In the paper, a concept of separation of an inverter-fed induction motor drive from its mains supply by two transistor switches inserted in the dc-link circuit is reexamined based on the proposed parallel quasi-resonant dc-link inverter (PQRDCLI). The objective of the paper is to show an advantage of the proposed topology in limiting high frequency common mode voltage and bearing currents. In the laboratory setup, an induction machine was equipped with hybrid ceramic bearings and an insulated clutch to measure the shaft-to-frame bearing voltage and the shaft-grounding current. Experimental tests of the PQRDCLI confirm significant reduction of common mode voltage and shaft-to-frame bearing voltage at dc-link zero voltage notches. By controlling the output voltage slopes, the shaft-grounding brush current and the ground leakage current are also reduced. The efficiency measurement and evaluation of the proposed topology, as compared with a two-level hard switched inverter, reveal comparable efficiency of around 95% and indicate loss distributions in both inverters

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Kategoria:
Publikacja w czasopiśmie
Typ:
artykuły w czasopismach
Opublikowano w:
IEEE TRANSACTIONS ON POWER ELECTRONICS nr 35, strony 9553 - 9562,
ISSN: 0885-8993
Język:
angielski
Rok wydania:
2020
Opis bibliograficzny:
Turzyński M., Chrzan P.: Reducing common mode voltage and bearing currents in quasi - resonant DC - link inverter// IEEE TRANSACTIONS ON POWER ELECTRONICS -Vol. 35,iss. 9 (2020), s.9553-9562
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1109/tpel.2020.2969495
Weryfikacja:
Politechnika Gdańska

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