@inproceedings{1b44c9d04a2d45569d7da3362e64702d,
title = "Topology Derivation of Transformerless Inverter without Leakage Current Based on Graph Theory",
abstract = "This paper proposes a topology derivation method based on graph theory, which can obtain topologies that meet specified power requirements given the port type, the number of components, and the target function of the circuit. The method uses graph theory to represent the circuit topology with an adjacency matrix. All closed loops can be obtained using a breadth/depth-first search method. Following this, initial topologies that match the required type and number of devices can be found. Circuit rules and the target circuit function can be converted into matrix constraints. Matrices that violate the constraints are then deleted to remove undesired topologies. A transformerless inverter without leakage current is explored as an example of the target function. The method yields several basic topologies with the minimum number of switches that meet the requirements. Expanding on this, working mode analysis and simulation of an integrated boost inverter are carried out to verify the validity of the method and the inverter topology result.",
keywords = "graph theory, inverter, leakage current, topology derivation",
author = "Lu Zhou and Yihan Gao and Hao Ma and Krein, {Philip T.}",
note = "Funding Information: The work here addresses topology derivation for leakage suppression in single-phase inverters. It employs graph theory. The first step is to represent topological features with an adjacency matrix and a loop matrix, leading to a list of initial topologies that meet an operating target. The second step is to convert circuit principles and target circuit functions into matrix constraints. The steps traverse all initial topologies and L. Zhou, H. Ma, and P. Krein are with Zhejiang University and the Zhejiang University-University of Illinois at Urbana-Champaign Institute (ZJUI) in Haining, China. P. Krein is also with the University of Illinois at Urbana-Champaign, USA. This work was supported in part by ZJUI, principal supervisors H. Ma and P. Krein. Publisher Copyright: {\textcopyright} 2022 IEEE.; 3rd IEEE International Power Electronics and Application Conference and Exposition, PEAC 2022 ; Conference date: 04-11-2022 Through 07-11-2022",
year = "2022",
doi = "10.1109/PEAC56338.2022.9959460",
language = "English (US)",
series = "PEAC 2022 - 2022 IEEE International Power Electronics and Application Conference and Exposition, Proceedings",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "838--843",
booktitle = "PEAC 2022 - 2022 IEEE International Power Electronics and Application Conference and Exposition, Proceedings",
address = "United States",
}