Hybrid Inverter

The widespread deployment of intermittent distributed energy resources (DER), such as solar power, in the utility grid requires effective integration. A hybrid energy storage system plays a critical role in enhancing power reliability and meeting future energy demands.

This hybrid inverter design is suitable for both on-grid and off-grid systems, allowing consumers to choose between Intermediate Bus and Multiport architectures while minimizing grid impact. The system integrates a photovoltaic (PV) module with maximum power point tracking (MPPT), a single-phase grid inverter, and a battery energy storage system (BESS). By leveraging wide-bandgap GaN devices, it achieves high power density and efficiency. Additionally, it improves power quality, ensuring a stable energy supply even under dynamic conditions. The 2.5kW hybrid inverter, powered by Renesas components, targets over 96% efficiency, a power factor above 0.99, and low total harmonic distortion (THD) of less than 3%. Future advancements in technology and supportive policies are expected to make these systems more accessible and cost-effective.

System Benefits:

• Maximizes energy harvested from solar panels by converting DC electricity into AC power for household or grid use.
• Enhances overall performance and grid stability by addressing key challenges in control systems and hardware architecture.
• Stores surplus solar energy in batteries for later use and intelligently draws power from the grid when needed, ensuring continuous energy availability.
• Supports smart energy management features and provides backup power during outages for uninterrupted operation.
• Automatically transitions between on-grid, off-grid, and hybrid modes based on energy availability and demand.
• Powered by Arm^® Cortex^® MCU, enabling real-time monitoring, dynamic power flow control, and efficient MPPT algorithms.