TY - JOUR
T1 - A new active zero state PWM algorithm for reducing the number of switchings
AU - Yun, Sang Won
AU - Baik, Jae Hyuk
AU - Kim, Dong Sik
AU - Yoo, Ji Yoon
N1 - Funding Information:
This work was supported by ?Human Resources program in Energy Technology? of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) granted financial resource from the Ministry of Trade, Industry & Energy, Republic of Korea (No.20134030200340)
Publisher Copyright:
© 2017 KIPE.
PY - 2017
Y1 - 2017
N2 - To reduce common-mode voltage (CMV), various reduced CMV pulse width modulation (RCMV-PWM) algorithms have been proposed, including active zero state PWM (AZSPWM) algorithms, remote state PWM (RSPWM) algorithms, and near state PWM (NSPWM) algorithms. Among these algorithms, AZSPWM algorithms can reduce CMV, but they increase the number of switchings compared to the conventional space vector PWM (CSVPWM). This paper presents a new AZSPWM algorithm for reductions in both the CMV and total number of switchings in BLAC motor drives. Since the proposed AZSPWM algorithm uses only active voltage vectors for motor control, it reduces CMV by 1/3 compared to CSVPWM. The proposed AZSPWM algorithm also reduces the total number of switchings compared to existing AZSPWM algorithms by eliminating the switchings required from one sector to the next. The performance of the proposed algorithm is verified by analyses, simulations, and experimental results.
AB - To reduce common-mode voltage (CMV), various reduced CMV pulse width modulation (RCMV-PWM) algorithms have been proposed, including active zero state PWM (AZSPWM) algorithms, remote state PWM (RSPWM) algorithms, and near state PWM (NSPWM) algorithms. Among these algorithms, AZSPWM algorithms can reduce CMV, but they increase the number of switchings compared to the conventional space vector PWM (CSVPWM). This paper presents a new AZSPWM algorithm for reductions in both the CMV and total number of switchings in BLAC motor drives. Since the proposed AZSPWM algorithm uses only active voltage vectors for motor control, it reduces CMV by 1/3 compared to CSVPWM. The proposed AZSPWM algorithm also reduces the total number of switchings compared to existing AZSPWM algorithms by eliminating the switchings required from one sector to the next. The performance of the proposed algorithm is verified by analyses, simulations, and experimental results.
KW - Active zero state PWM (AZSPWM)
KW - Common-mode current (CMC)
KW - Common-mode voltage (CMV)
KW - Space vector pulse width modulation (SVPWM)
UR - http://www.scopus.com/inward/record.url?scp=85010908282&partnerID=8YFLogxK
U2 - 10.6113/JPE.2017.17.1.88
DO - 10.6113/JPE.2017.17.1.88
M3 - Article
AN - SCOPUS:85010908282
SN - 1598-2092
VL - 17
SP - 88
EP - 95
JO - Journal of Power Electronics
JF - Journal of Power Electronics
IS - 1
M1 - JPE 17-1-9
ER -