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Abstract Hybrid AC/DC overhead lines offer a significant increase in transmission capacity compared to existing HVAC infrastructure. While corona phenomena and audible noise are crucially important for public acceptance, they… Click to show full abstract
Abstract Hybrid AC/DC overhead lines offer a significant increase in transmission capacity compared to existing HVAC infrastructure. While corona phenomena and audible noise are crucially important for public acceptance, they are affected by mutual AC/DC coupling. While the underlying phenomena need to be clearly understood and predicted accurately, only few experimental studies exist. The corona effects are therefore studied in detail on a large laboratory setup under the influence of electric field bias, ripple and space charges. The results show a clear trend in the phase resolved partial discharge (PRPD) pattern and repetition rate which can explain the change in audible noise.
Journal Title: Journal of Electrostatics
Year Published: 2019
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