Analyzing Effects of Seasonal Variations in Wind Generation and Load on Voltage Profiles

TL;DR

This paper develops a methodology to analyze how seasonal variations in wind generation and load affect voltage profiles in power systems, improving the detection of voltage violations caused by seasonal changes.

Contribution

It introduces a measurement-based seasonal modeling approach for wind and load, enhancing the accuracy of voltage violation analysis in power grids.

Findings

High accuracy wind models validated with real data

Seasonal models reveal voltage violations missed by season-independent models

Improved visualization of seasonal impacts on grid stability

Abstract

This paper presents a methodology for building daily profiles of wind generation and load for different seasons to assess their impacts on voltage violations. The measurement-based wind models showed very high accuracy when validated against several years of actual wind power data. System load modeling was carried out by analyzing the seasonal trends that occur in residential, commercial, and industrial loads. When the proposed approach was implemented on the IEEE 118-bus system, it could identify violations in bus voltage profiles that the season-independent model could not capture. The results of the proposed approach are expected to provide better visualization of the problems that seasonal variations in wind power and load might cause to the electric power grid.