On a Real Australian LV Feeder, Rooftop-PV Export Magnitude Sets Over-Voltage
Abstract
This paper constitutes the second of four publications establishing the 5-Factor Decision Framework. While the first study (European MV networks) demonstrated that operating state dictates grid limits, this study proves the opposite holds true at the low-voltage tier. Using empirical smart-meter telemetry from a 500 kVA Australian feeder (CSIRO Network R), this paper demonstrates that localized rooftop solar export magnitude is the overwhelming physical driver of voltage rise (), overriding the background operating state.
Methodology
Content currently under peer review.
- Data Ingestion: Analysis of high-resolution smart meter telemetry across a densely populated Australian residential feeder.
- Correlation Profiling: Pearson and Spearman rank analyses isolating generation magnitude (P-inj) versus base load consumption (P-load).
- Physical Modeling: Resistive line impedance profiling () to prove why active power export natively drives .
Expected Outcomes
By empirically isolating the generation-driven over-voltage effect, this research solidifies Factor 1 (Stress Direction) and Factor 4 (Seasonality) of the decision framework. It provides Distribution System Operators (DSOs) with the mathematical justification required to implement dynamic export limits rather than arbitrary static curtailment.