Open AccessMulti‐branch current sensing technique for three‐phase current reconstruction with non‐contact‐type current sensor
Author(s) -
Cho Younghoon,
Byen ByengJoo,
Choe GyuHa
Publication year - 2014
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2013.4132
Subject(s) - current (fluid) , current sensor , current mirror , phase (matter) , electronic engineering , computer science , inverter , voltage , engineering , electrical engineering , physics , transistor , quantum mechanics
A multi‐branch current sensing technique for three‐phase current reconstruction with a non‐contact‐type current sensor is introduced. In the proposed method, the non‐contact‐type current sensor measures two branches’ current simultaneously in a three‐phase inverter, and all phases’ current information is obtained in a single switching cycle. The proposed method completely takes the advantages of the previous multi‐branch current sensing technique, and even further accuracy improvement is achieved. The proposed method is verified through experiments.