- Title
- Improved switching scheme to reduce the junction temperature and power loss of CHB inverters
- Creator
- Afrin, Sadia; Biswas, Suvra; Bin Islam, Md Sabbir; Islam, Md Rabiul; Shah, Rakibuzzaman
- Date
- 2023
- Type
- Text; Conference paper
- Identifier
- http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/198864
- Identifier
- vital:19098
- Identifier
-
https://doi.org/10.1109/ASEMD59061.2023.10369835
- Identifier
- ISBN:9798350301571 (ISBN)
- Abstract
- Excessive heating and power loss due to high-frequency switching are always alarming issues in the case of multilevel inverter (MLI) based applications such as solar photovoltaic (PV) systems and industrial drives. Both the heating and power loss of power semiconductor switches significantly rely on the switching pulse width modulation (PWM) scheme employed. This paper proposes an improved switching technique for a solar PV-fed grid-tied 5-level cascaded H-bridge (CHB) inverter, which also reduces the power semiconductor losses of the inverter in relation to several existing switching schemes. The proposed switching scheme employs a modified discontinuous standard mode signal to develop the modulating signal of the proposed method. Level-shifted triangular carrier signals are considered with the proposed switching signal to produce the gate pulses for the 5-level CHB inverter. The performance of the proposed switching scheme is validated through MATLAB/Simulink and PLECS computer simulation environments. © 2023 IEEE.
- Publisher
- Institute of Electrical and Electronics Engineers Inc.
- Relation
- 2023 IEEE International Conference on Applied Superconductivity and Electromagnetic Devices, ASEMD 2023, Tianjin, China, 27-29 October 2023, 2023 IEEE International Conference on Applied Superconductivity and Electromagnetic Devices, ASEMD 2023
- Rights
- All metadata describing materials held in, or linked to, the repository is freely available under a CC0 licence
- Rights
- Copyright © 2023 IEEE
- Subject
- Junction temperature; Power loss; Pulse width modulation; Switching scheme
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