TY - GEN
T1 - DC-Link capacitor design in neutral point clamped multilevel inverter utilizing ripple current analysis and DC-DC converter control
AU - Sholihah, Fifi Hesty
AU - Becerra, Victor
AU - Prabhu, Shanker Radhakrishna
N1 - Publisher Copyright:
© 2024 IEEE.
PY - 2024/9/12
Y1 - 2024/9/12
N2 - The DC-Link capacitor, an essential part in power converters, stabilizes voltage levels by reducing ripple effects, ensuring a constant output voltage despite high-frequency switching and transient load changes. This research focuses on designing a DC-Link capacitor for a 3-level, 3-phase neutral point clamped multilevel inverter (NPC-MLI). The design process involves calculating the current ripple and analyzing the RMS current in the capacitor. A well-designed DC-Link capacitor must account for ripple voltage and load variations. The proposed design includes cascaded control on the DC-DC converter, comprising both voltage and current controllers. This ensures the output current operates in continuous conduction mode (CCM), maintaining a continuous current flow to the DC-Link capacitor and reducing ripple voltage under load variations. MATLAB/Simulink simulations demonstrate this design's efficacy in a range of scenarios, highlighting the capacitor's role in maintaining the reliability and efficiency of power converters in renewable energy systems.
AB - The DC-Link capacitor, an essential part in power converters, stabilizes voltage levels by reducing ripple effects, ensuring a constant output voltage despite high-frequency switching and transient load changes. This research focuses on designing a DC-Link capacitor for a 3-level, 3-phase neutral point clamped multilevel inverter (NPC-MLI). The design process involves calculating the current ripple and analyzing the RMS current in the capacitor. A well-designed DC-Link capacitor must account for ripple voltage and load variations. The proposed design includes cascaded control on the DC-DC converter, comprising both voltage and current controllers. This ensures the output current operates in continuous conduction mode (CCM), maintaining a continuous current flow to the DC-Link capacitor and reducing ripple voltage under load variations. MATLAB/Simulink simulations demonstrate this design's efficacy in a range of scenarios, highlighting the capacitor's role in maintaining the reliability and efficiency of power converters in renewable energy systems.
KW - capacitor
KW - CCM
KW - dc-link
KW - multilevel inverter
KW - ripple
UR - http://www.scopus.com/inward/record.url?scp=85205017005&partnerID=8YFLogxK
U2 - 10.1109/IES63037.2024.10665876
DO - 10.1109/IES63037.2024.10665876
M3 - Conference contribution
AN - SCOPUS:85205017005
SN - 9798350392005
T3 - International Electronics Symposium Proceedings
SP - 89
EP - 94
BT - 2024 International Electronics Symposium
A2 - Yunanto, Andhik Ampuh
A2 - Ramadhani, Afifah Dwi
A2 - Prayogi, Yanuar Risah
A2 - Putra, Putu Agus Mahadi
A2 - Rahmawati, Weny Mistarika
A2 - Rusli, Muhammad Rizani
A2 - Humaira, Fitrah Maharani
A2 - Nadziroh, Faridatun
A2 - Sa'adah, Nihayatus
A2 - Muna, Nailul
A2 - Rizki, Aris Bahari
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 26th International Electronics Symposium, IES 2024
Y2 - 6 August 2024 through 8 August 2024
ER -