Application:

The single-phase inverter is ideally suited for residential rooftop installations, connecting the DC power from the PV array to the home's electrical panel and the utility grid.

Key Features:

• High Efficiency: Peak Efficiency 97.7 %
• Maximum DC voltage: up to 550 volt
• Advanced MPPT: Fast and precise one Maximum Power Point Tracking
• High Power Quality: Low Total Harmonic Distortion (THD)
• Robust Protection: Integrated Anti-Islanding & IP66

System:

The single-phase, transformerless on-grid PV inverter generally employs a two-stage topology to achieve high efficiency and wide input voltage flexibility .

Safety and Regulatory Compliance:

• IEC 60068-2-1/2/14/30, IEC 61727, IEC 62109-1/2, IEC 62116, EN50530
• IEC 61683, IEC 60529, IEC 61000-6-3/2, CE, VDE-0126, BIS Registered

Anti-Islanding Protection:

This is a critical safety requirement. The inverter must immediately cease current injection if the grid power is lost (i.e., it detects an "island"):

• Passive Methods: Monitoring voltage and frequency deviations (e.g., rate of change of frequency - ROCOF)
• Active Methods: Injecting a slight disturbance into the output current that causes a measurable frequency or voltage shift only when the grid source is absent

Communication And Monitoring:

Modern on-grid inverters require robust communication capabilities for monitoring, remote firmware updates, and meeting utility demand response requirements:

• Physical Interfaces: RS-485 (for external monitoring devices), Wi-Fi/Ethernet (for cloud connectivity),GPRS/4G,Bluetooth