Corona Current Coupling in Bipolar HVDC and Hybrid HVAC/HVDC Overhead Lines

Martin D. Pfeiffer, Sören Hedtke & Christian Franck
This publication investigates the corona generated ion flow environment in bipolar HVDC and hybrid AC/DC transmission systems. The emphasis is on the DC ion current magnitude in the conductors. In DC conductors this constitutes the corona power loss, while in AC conductors this quantity is primarily of concern due to the risk of transformer saturation. Existing prediction methods are compared to full-scale test data from the literature and new laboratory measurements. It is shown that...
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