TY - GEN
T1 - Design and Implementation of Non-Isolated Switched-Capacitor SEPIC Converters Using Duality Principle
AU - Su, Xiu Wei
AU - Liao, Hsuan
AU - Peng, Kai Chieh
AU - Tsai, Shang Lin
AU - Chen, Jiann Fuh
N1 - Funding Information:
VI. ACKNOWLEDGMENT The a uthors a ppreciate f or financial s upport f rom t he Ministry of Science and Technology of the R.O.C. under grant number M OST 111 -2221-E-006-078, M OST 111 -2634-F-006-008 and MOST 111-3116-F-006-006.
Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - If the renewable source is connected to utility, a current source (CS) is required. The conventional converter design is based on a voltage source (VS). A voltage source has a dual relationship with a source, so this paper takes the dual principle as the basis and uses the dual approach to propose converters based on the current source. The duality theory can be used to convert the switched inductor (SI) structure into a switched capacitor (SC) structure, that is convert a step-up voltage topology into a step-up current topology.In this paper, taking the Single Ended Primary Inductive Converter (SEPIC) converter as an example, the conventional voltage source SEPIC converter is converted into a current source SEPIC converter, and then the capacitor is replaced by a step-down switched capacitor structure to form a current source switched capacitor (CSSC) converter. The input current of the proposed topology is Iin=1 A~5 A, and the switching frequency is 100 kHz. Maximum output current Io is 15 A, and the output power is 1125 W. The efficiency can be at least 90.62 %.
AB - If the renewable source is connected to utility, a current source (CS) is required. The conventional converter design is based on a voltage source (VS). A voltage source has a dual relationship with a source, so this paper takes the dual principle as the basis and uses the dual approach to propose converters based on the current source. The duality theory can be used to convert the switched inductor (SI) structure into a switched capacitor (SC) structure, that is convert a step-up voltage topology into a step-up current topology.In this paper, taking the Single Ended Primary Inductive Converter (SEPIC) converter as an example, the conventional voltage source SEPIC converter is converted into a current source SEPIC converter, and then the capacitor is replaced by a step-down switched capacitor structure to form a current source switched capacitor (CSSC) converter. The input current of the proposed topology is Iin=1 A~5 A, and the switching frequency is 100 kHz. Maximum output current Io is 15 A, and the output power is 1125 W. The efficiency can be at least 90.62 %.
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U2 - 10.1109/eGRID57376.2022.9990028
DO - 10.1109/eGRID57376.2022.9990028
M3 - Conference contribution
AN - SCOPUS:85146290658
T3 - 2022 7th IEEE Workshop on the Electronic Grid, eGRID 2022
BT - 2022 7th IEEE Workshop on the Electronic Grid, eGRID 2022
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 7th IEEE Workshop on the Electronic Grid, eGRID 2022
Y2 - 29 November 2022 through 2 December 2022
ER -
