TY - GEN
T1 - Minimum DC Link Capacitance for a Family of Three-Phase Three-Level Grid-Connected Converters Operating with Unity Power Factor
AU - Siton, Yarden
AU - Abramovitz, Alexander
AU - Mellincovsky, Martin
AU - Sitbon, Moshe
AU - Lineykin, Simon
AU - Kuperman, Alon
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - The paper presents a method for derivation of the minimum split DC link capacitance in three-phase three-level DC-AC converters operating with unity power factor with neither active balancing circuits nor AC zero sequence injection. It is shown that due to the fact that partial DC link voltages and AC-side phase voltages obtain extremum values at different instants, it is possible to reduce the minimum value of the former below maximum value of the latter while still ensuring correct operation of the power stage. Minimum attainable split DC link capacitance values are therefore obtained according to boundary case of tangency between the above-mentioned voltages. Analytical derivations are accurately verified by simulations and experiments, demonstrating close agreement.
AB - The paper presents a method for derivation of the minimum split DC link capacitance in three-phase three-level DC-AC converters operating with unity power factor with neither active balancing circuits nor AC zero sequence injection. It is shown that due to the fact that partial DC link voltages and AC-side phase voltages obtain extremum values at different instants, it is possible to reduce the minimum value of the former below maximum value of the latter while still ensuring correct operation of the power stage. Minimum attainable split DC link capacitance values are therefore obtained according to boundary case of tangency between the above-mentioned voltages. Analytical derivations are accurately verified by simulations and experiments, demonstrating close agreement.
KW - AC-DC conversion
KW - DC link capacitance
KW - DC-AC conversion
KW - three-phase three-level converters
UR - http://www.scopus.com/inward/record.url?scp=85171544297&partnerID=8YFLogxK
U2 - 10.1109/CPE-POWERENG58103.2023.10227502
DO - 10.1109/CPE-POWERENG58103.2023.10227502
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AN - SCOPUS:85171544297
T3 - CPE-POWERENG 2023 - 17th IEEE International Conference on Compatibility, Power Electronics and Power Engineering
BT - CPE-POWERENG 2023 - 17th IEEE International Conference on Compatibility, Power Electronics and Power Engineering
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 17th IEEE International Conference on Compatibility, Power Electronics and Power Engineering, CPE-POWERENG 2023
Y2 - 14 June 2023 through 16 June 2023
ER -