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http://dx.doi.org/10.6113/TKPE.2017.22.2.175

Three Phase Current Reconstruction Method of Three Shunt Sensing 3-Phase Inverter by Predictive Current Technique  

Choo, Kyoung-Min (College of Information and Communication Eng. Sungkyunkwan University)
Hong, Sung-Woo (College of Information and Communication Eng. Sungkyunkwan University)
Jang, Young-Hee (College of Information and Communication Eng. Sungkyunkwan University)
Won, Il-Kuen (College of Information and Communication Eng. Sungkyunkwan University)
Kim, Do-Yun (College of Information and Communication Eng. Sungkyunkwan University)
Wo, Chung-Yuen (College of Information and Communication Eng. Sungkyunkwan University)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.22, no.2, 2017 , pp. 175-180 More about this Journal
Abstract
The measurement of three-phase current is important to control the instantaneous torque of a interior permanent magnet synchronous motor(IPMSM) using a three-phase inverter. Therefore, shunt resistors are used in low-cost motor-driving systems to measure three-phase current instead of additional current sensors that are too expensive for these systems. However, in certain regions of a space vector plane, shunt resistors cannot reconstruct three-phase current in high-speed driving mode. In this paper, predictive current control is used to compensate for the three-phase current in those regions, which results in a reduction of current ripple in a three-shunt sensing inverter(TSSI) and torque ripple in IPMSM.
Keywords
Current reconstruction; Predictive current technique; IPMSM; TSSI(Three Shunt Sensing Inverter);
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  • Reference
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