An Approach for Small Scale Power Hardware in the Loop Emulation of HVDC Cables
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Long HVDC cables are difficult to emulate in laboratory settings due their complex behaviour and fast transient response. This paper presents the methodology for the design and the laboratory implementation of a HVDC cable emulator with a Power Hardware in the Loop approach. The cable representation in the real time simulation is based on the Universal Line Model available in most state of the art software for electromagnetic transients analysis. The proposed cable emulation reproduces the cable dynamics up to the kHz range with present commercially available hardware. Moreover, this approach offers a higher flexibility in adapting the cable characteristics and length compared to other existing alternatives.