A Single Source Cascaded Multilevel Inverter Based on Switched-capacitor with Series and Parallel Connectivity

2018 ◽  
Author(s):  
Y. C. Fong ◽  
K.W.E. Cheng ◽  
S. Raghu Raman ◽  
Jiefeng Hu
Keyword(s):  
Multilevel Inverter ◽  
Switched Capacitor ◽  
Single Source ◽  
Cascaded Multilevel Inverter

Asymmetric cascade multilevel inverter with self-balanced switched-capacitor unit and single source

2020 ◽  
Vol 13 (15) ◽  
pp. 3254-3262
Author(s):  
Yuanmao Ye ◽  
Mingliang Lin ◽  
Xiaolin Wang
Keyword(s):  
Multilevel Inverter ◽  
Switched Capacitor ◽  
Single Source

scholarly journals A Single-Source Switched-Capacitor Based Step-Up Multilevel Inverter with Reduced Components

2021 ◽  
pp. 1-1
Author(s):  
Kaibalya Prasad Panda ◽  
Prabhat Ranjan Bana ◽  
Oleh Kiselychnyk ◽  
Jihong Wang ◽  
Gayadhar Panda
Keyword(s):  
Multilevel Inverter ◽  
Switched Capacitor ◽  
Single Source

scholarly journals Switched Capacitor Based Cascaded Half-Bridge Multilevel Inverter With Voltage Boosting Feature

2021 ◽  
Vol 6 (1) ◽  
pp. 63-73
Author(s):  
Hossein Khoun-Jahan ◽  
Keyword(s):  
Multilevel Inverter ◽  
Inrush Current ◽  
Switched Capacitor ◽  
Multilevel Inverters ◽  
Main Drawback ◽  
Front End ◽  
Simulation Results ◽  
Resonant Capacitor ◽  
Cascaded Multilevel Inverter ◽  
Inverter Topology

Cascaded multilevel inverter (CMI) topology is prevalent in many applications. However, the CMI requires many switches and isolated dc sources, which is the main drawback of this type of inverter. As a result, the volume, cost and complexity of the CMI topology are increased and the efficiency is deteriorated. This paper thus proposes a switched-capacitor-based multilevel inverter topology with half-bridge cells and only one dc source. Compared to the conventional CMI, the proposed inverter uses almost half the number of switches, while maintaining a boosting capability. Additionally, the main drawback of switched-capacitor multilevel inverters is the capacitor inrush current. This problem is also averted in the proposed topology by using a charging inductor or quasi-resonant capacitor charging with a front-end boost converter. Simulation results and lab-scale experimental verifications are provided to validate the feasibility and viability of the proposed inverter topology.

scholarly journals A Single Source Switched-Capacitor 13-Level Inverter with Triple Voltage Boosting and Reduced Component Count

Electronics ◽  
2021 ◽  
Vol 10 (19) ◽  
pp. 2321
Author(s):  
Mohammad Tayyab ◽  
Adil Sarwar ◽  
Irfan Khan ◽  
Mohd Tariq ◽  
Md Reyaz Hussan ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Output Voltage ◽  
Multilevel Inverter ◽  
Switched Capacitor ◽  
Single Source ◽  
Level Control ◽  
Voltage Waveform ◽  
Voltage Level ◽  
Fundamental Cycle ◽  
Simulation Results

A new triple voltage boosting switched-capacitor multilevel inverter (SCMLI) is presented in this paper. It can produce 13-level output voltage waveform by utilizing 12 switches, three diodes, three capacitors, and one DC source. The capacitor voltages are self-balanced as all the three capacitors present in the circuit are connected across the DC source to charge it to the desired voltage level for several instants in one fundamental cycle. A detailed comparative analysis is carried to show the advantages of the proposed topology in terms of the number of switches, number of capacitors, number of sources, total standing voltage (TSV), and boosting of the converter with the recently published 13-level topologies. The nearest level control (NLC)-based algorithm is used for generating switching signals for the IGBTs present in the circuit. The TSV of the proposed converter is 22. Experimental results are obtained for different loading conditions by using a laboratory hardware prototype to validate the simulation results. The efficiency of the proposed inverter is 97.2% for a 200 watt load.

scholarly journals Common-Ground-Type Single-Source High Step-Up Cascaded Multilevel Inverter for Transformerless PV Applications

Mathematics ◽  
2020 ◽  
Vol 8 (10) ◽  
pp. 1716 ◽  
Author(s):  
Hossein Khoun Jahan ◽  
Naser Vosoughi Kurdkandi ◽  
Mehdi Abapour ◽  
Kazem Zare ◽  
Seyed Hossein Hosseini ◽  
...  
Keyword(s):  
Common Ground ◽  
Industrial Applications ◽  
Multilevel Inverter ◽  
Single Source ◽  
Pv System ◽  
Leakage Currents ◽  
Symmetric Configuration ◽  
Pv Modules ◽  
Cascaded Multilevel Inverter ◽  
Asymmetric Configuration

The cascaded multilevel inverter (CMI) is one type of common inverter in industrial applications. This type of inverter can be synthesized either as a symmetric configuration with several identical H-bridge (HB) cells or as an asymmetric configuration with non-identical HB cells. In photovoltaic (PV) applications with the CMI, the PV modules can be used to replace the isolated dc sources; however, this brings inter-module leakage currents. To tackle the issue, the single-source CMI is preferred. Furthermore, in a grid-tied PV system, the main constraint is the capacitive leakage current. This problem can be addressed by providing a common ground, which is shared by PV modules and the ac grid. This paper thus proposes a topology that fulfills the mentioned requirements and thus, CMI is a promising inverter with wide-ranging industrial uses, such as PV applications. The proposed CMI topology also features high boosting capability, fault current limiting, and a transformerless configuration. To demonstrate the capabilities of this CMI, simulations and experimental results are provided.

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