Power Scheduling Method for Grid Integration of a PV-BESS CHB Inverter With SOC Balancing Capability
- Resource Type
- Periodical
- Authors
- Iannuzzi, D.; Coppola, M.; Guerriero, P.; Dannier, A.; Pizzo, A.D.
- Source
- IEEE Access Access, IEEE. 10:112273-112285 2022
- Subject
- Aerospace
Bioengineering
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Engineered Materials, Dielectrics and Plasmas
Engineering Profession
Fields, Waves and Electromagnetics
General Topics for Engineers
Geoscience
Nuclear Engineering
Photonics and Electrooptics
Power, Energy and Industry Applications
Robotics and Control Systems
Signal Processing and Analysis
Transportation
Batteries
Inverters
State of charge
Modulation
Sorting
Behavioral sciences
Power control
Battery management systems
Renewable energy sources
Battery integration
hybrid modulation
power scheduling
PV-CHB inverter
short-term variability
variable renewable energy
- Language
- ISSN
- 2169-3536
The paper deals with a single-phase photovoltaic (PV) inverter based on the Cascaded H-Bridge (CHB) topology for Low Voltage (LV) grid. A distributed architecture of PV sources integrated with battery energy storage systems (BESS) is proposed with the particularity of avoiding the use of dc-dc converters. A method of compensating for the short-term daily variability of PV energy is also presented. The control implements power scheduling to ensure that constant active power is fed into the grid at every predetermined time interval (e.g., every quarter of an hour). Furthermore, a dedicated hybrid modulation scheme based on a sorting algorithm for balancing the state of charge (SOC) of the single cells is proposed. Numerical investigations are carried out on a 19-level CHB inverter implemented in a PLECS®(i.e., the simulation platform for power electronic systems from Plexim) environment to validate the feasibility and effectiveness of the proposed control strategy.