TY - JOUR
T1 - A randomized voltage vector switching scheme for three-level power inverters
AU - Lee, C. K.
AU - Hui, S. Y R
AU - Chung, H. Shu-Hung
AU - Shrivastava, Yash
PY - 2002/1
Y1 - 2002/1
N2 - In this paper, a feasibility study of a randomized space vector switching scheme for three-level inverters is reported. Based on the traditional space vector concept for pulse width modulation (PWM) inverter, the sequence of the space vector is randomized in this scheme. The overall vector, resulting from the randomization, is mathematically identical to that of the traditional space vector. It has been found that the randomized scheme can effectively spread the switching noise over a wide frequency range and at the same time keep the steady-state link capacitor voltage balanced. The proposed scheme has been implemented in real time in a digital controller and its features have been experimentally confirmed.
AB - In this paper, a feasibility study of a randomized space vector switching scheme for three-level inverters is reported. Based on the traditional space vector concept for pulse width modulation (PWM) inverter, the sequence of the space vector is randomized in this scheme. The overall vector, resulting from the randomization, is mathematically identical to that of the traditional space vector. It has been found that the randomized scheme can effectively spread the switching noise over a wide frequency range and at the same time keep the steady-state link capacitor voltage balanced. The proposed scheme has been implemented in real time in a digital controller and its features have been experimentally confirmed.
KW - Random PWM methods
KW - Space vector control
KW - Three-level inverters
UR - http://www.scopus.com/inward/record.url?scp=0036223077&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-0036223077&origin=recordpage
U2 - 10.1109/63.988674
DO - 10.1109/63.988674
M3 - RGC 21 - Publication in refereed journal
SN - 0885-8993
VL - 17
SP - 94
EP - 100
JO - IEEE Transactions on Power Electronics
JF - IEEE Transactions on Power Electronics
IS - 1
ER -