Prof Jan de Kock from the North-West University’s (NWU’s) Faculty of Engineering clinched the Best Paper Award at the recent Southern African Universities Power Engineering Conference (SAUPEC 2024).

The conference, jointly hosted by Stellenbosch University and the South African Institute of Electrical Engineers (SAIEE), serves as a premier regional platform bringing together industry experts, academics and students in the fields of engineering, computer science, and information technology.

Prof De Kock's award-winning research paper, titled “Exploring the impact of inductive current transformers on harmonic emission measurements for South African grid code compliance”, takes a deep dive into revisions of the South African Grid Code for Renewable Power Plants.

The focal point of the paper is the harmonic emissions component of the grid code, with a specific examination of the influence of inductive current transformers commonly utilised in outdoor substations on measurement accuracy.

Delving into the nuances of inductive burden and harmonic current amplitude, the paper reveals crucial findings. Prof De Kock's research highlights an increased ratio error in measurements of lower current harmonic amplitudes, particularly those below 0.5 A. Moreover, the presence of inductive burdens connected to current transformers exacerbates this ratio error.

The paper underscores the significance of quantifying burdens at each site, emphasising the need for accurate measurements when conducting analyses for grid code compliance.

Commenting on his research, Prof De Kock emphasises the importance of quantifying burdens to compensate for errors, ultimately improving the precision of current harmonic measurements.

The NWU community celebrates this notable accomplishment, looking forward to more advancements in the ever-evolving landscape of power engineering.