Sensitivity Analysis of Harmonic Levels at POI Using Mixed GSU Transformer Phase Shift, A Case Study

The integration of renewable energy sources into power systems has led to increased concerns regarding the impact of harmonics on the stability and reliability of the grid. This study investigates the sensitivity of harmonic levels at the Point of Interconnection (POI) in a power system, focusing on the application of mixed Generator Step-Up (GSU) transformer phase shift configurations. The objective is to analyze how varying the vector group in the GSU transformers affects harmonic distortion at the POI.

The case study was based on a realistic power system model with renewable energy sources and mixed GSU transformers. A comprehensive sensitivity analysis was conducted by changing the vector group of the GSU transformers and monitoring the resulting harmonic levels at the POI. The study identified the optimal vector group configurations that minimize harmonic distortion while ensuring efficient power transfer.

Gerardo Valdés Bustamante, Electric Power Engineers

Gerardo Valdés Bustamante is a Senior Power Systems Engineer for the Generation Interconnection department at Electric Power Engineer (EPE) and IEEE Senior Member. He has over 10 years of experience in the power and energy systems industry. He specializes in substation design and power system studies. He is a Licensed Professional Engineer in the states of Colorado and Georgia. He holds a M.S. in Electrical Engineering from the Colorado School of Mines and a Master of Engineering from the National Autonomous University of Mexico (UNAM).

Date/Time

Dec 13, 2023 @ 12pm-1pm Central Time

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