Step-Up Seven-Level Common-Ground Transformerless Inverter
- Resource Type
- Conference
- Authors
- Grigoletto, Felipe Bovolini; de Vilhena Moura, Paulo H. M.; Chaves, Diego Brum; Vilaverde, Jeronimo Dorneles Silva
- Source
- 2021 14th IEEE International Conference on Industry Applications (INDUSCON) Industry Applications (INDUSCON), 2021 14th IEEE International Conference on. :716-722 Aug, 2021
- Subject
- Computing and Processing
Power, Energy and Industry Applications
Robotics and Control Systems
Photovoltaic systems
Voltage measurement
Simulation
Conferences
Industry applications
Capacitors
High-voltage techniques
transformerless inverters
multilevel inverters
leakage current
common-mode voltage
- Language
This paper proposes a new multilevel inverter for single-phase transformerless systems. The main feature of the proposed topology is to synthesize seven output voltage levels with high voltage gain. In this topology the ground connection is shared between the dc input and ac output which results in constant common-mode voltage, therefore theoretically eliminating the leakage current. Furthermore, the paper presents a description of the circuit and operating principles. Simulation results are presented to verify the feasibility of the proposed inverter.