Abstract
One of the undesirable power quality phenomenon in the distribution systems is voltage sag which risks the operation of sensitive loads. Dynamic voltage restorer (DVR) is well-known and reliable solution to mitigate this phenomenon and protect the sensitive loads. This paper proposes new configuration of DVR for medium-voltage applications. The proposed configuration contains diode rectifier to converter power grid voltage to medium-voltage dc link which is split between capacitors working at low-voltage level. Next stage is couple of full bridge (FB) dc-dc converters which are stacked together and each is fed with low voltage. Each FB dc-dc converter contains high-frequency (HF) transformer to make isolated dc link for each phase since DVR needs to inject isolated voltage in each phase individually. Last stage of proposed configuration is the cascaded multicell inverter (CMI) which works as series converter of DVR to inject required voltage. The output of each FB dc-dc converters are fed to one cell of CMI. CMI is controlled with phase shifted sinusoidal pulse width modulation to absorb the same power from each cell causing to split the voltage of main dc link equally between low-voltage capacitors. Simulation results of the proposed configuration are presented to show the performance and effectiveness of the circuit.
| Original language | English (US) |
|---|---|
| Title of host publication | 2016 IEEE Applied Power Electronics Conference and Exposition, APEC 2016 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 2187-2193 |
| Number of pages | 7 |
| ISBN (Electronic) | 9781467383936 |
| DOIs | |
| State | Published - May 10 2016 |
| Event | 31st Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2016 - Long Beach, United States Duration: Mar 20 2016 → Mar 24 2016 |
Publication series
| Name | Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC |
|---|---|
| Volume | 2016-May |
Other
| Other | 31st Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2016 |
|---|---|
| Country | United States |
| City | Long Beach |
| Period | 3/20/16 → 3/24/16 |
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All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering
Cite this
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New configuration of dynamic voltage restorer for medium voltage application. / Khoshkbar-Sadigh, Arash; Dargahi, Vahid; Corzine, Keith.
2016 IEEE Applied Power Electronics Conference and Exposition, APEC 2016. Institute of Electrical and Electronics Engineers Inc., 2016. p. 2187-2193 7468170 (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC; Vol. 2016-May).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - New configuration of dynamic voltage restorer for medium voltage application
AU - Khoshkbar-Sadigh, Arash
AU - Dargahi, Vahid
AU - Corzine, Keith
PY - 2016/5/10
Y1 - 2016/5/10
N2 - One of the undesirable power quality phenomenon in the distribution systems is voltage sag which risks the operation of sensitive loads. Dynamic voltage restorer (DVR) is well-known and reliable solution to mitigate this phenomenon and protect the sensitive loads. This paper proposes new configuration of DVR for medium-voltage applications. The proposed configuration contains diode rectifier to converter power grid voltage to medium-voltage dc link which is split between capacitors working at low-voltage level. Next stage is couple of full bridge (FB) dc-dc converters which are stacked together and each is fed with low voltage. Each FB dc-dc converter contains high-frequency (HF) transformer to make isolated dc link for each phase since DVR needs to inject isolated voltage in each phase individually. Last stage of proposed configuration is the cascaded multicell inverter (CMI) which works as series converter of DVR to inject required voltage. The output of each FB dc-dc converters are fed to one cell of CMI. CMI is controlled with phase shifted sinusoidal pulse width modulation to absorb the same power from each cell causing to split the voltage of main dc link equally between low-voltage capacitors. Simulation results of the proposed configuration are presented to show the performance and effectiveness of the circuit.
AB - One of the undesirable power quality phenomenon in the distribution systems is voltage sag which risks the operation of sensitive loads. Dynamic voltage restorer (DVR) is well-known and reliable solution to mitigate this phenomenon and protect the sensitive loads. This paper proposes new configuration of DVR for medium-voltage applications. The proposed configuration contains diode rectifier to converter power grid voltage to medium-voltage dc link which is split between capacitors working at low-voltage level. Next stage is couple of full bridge (FB) dc-dc converters which are stacked together and each is fed with low voltage. Each FB dc-dc converter contains high-frequency (HF) transformer to make isolated dc link for each phase since DVR needs to inject isolated voltage in each phase individually. Last stage of proposed configuration is the cascaded multicell inverter (CMI) which works as series converter of DVR to inject required voltage. The output of each FB dc-dc converters are fed to one cell of CMI. CMI is controlled with phase shifted sinusoidal pulse width modulation to absorb the same power from each cell causing to split the voltage of main dc link equally between low-voltage capacitors. Simulation results of the proposed configuration are presented to show the performance and effectiveness of the circuit.
UR - http://www.scopus.com/inward/record.url?scp=84973596342&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84973596342&partnerID=8YFLogxK
U2 - 10.1109/APEC.2016.7468170
DO - 10.1109/APEC.2016.7468170
M3 - Conference contribution
AN - SCOPUS:84973596342
T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
SP - 2187
EP - 2193
BT - 2016 IEEE Applied Power Electronics Conference and Exposition, APEC 2016
PB - Institute of Electrical and Electronics Engineers Inc.
ER -