|
,
Uncovering the Unexpected Impacts of PV Inverters on Local Voltage Sags
This white paper examines how photovoltaic (PV) systems, while theoretically expected to reduce voltage sags by lowering system impedance, can actually worsen sag severity due to the nonlinear and limited response of typical PV inverters. Real-world monitoring data demonstrates that inverter design, current limits, and control algorithms often prevent PV systems from effectively mitigating voltage sags, and may even lead to deeper sags or inverter disconnection during critical events.
Key topics include:
- Simple Distributed Generation Model
- PV Inverter Limitations
- Real-World Example
Why utilities should care:
Understanding the dynamic behavior of PV inverters during voltage sags is crucial for accurate power quality management, system planning, and ensuring reliable integration of distributed generation as PV adoption increases on distribution networks.
You may also enjoy...
