Hybrid Computer Simulation of Multiterminal DC Power Transmission Systems

Abstract
Techniques are developed for the hybrid computer simulation of multiterminal dc power transmission systems with two- or three-conductor transmission lines. The switching of the static converters as well as the attenuation and transport delay of a distortionless transmission line are represented in detail. An example study is performed using a hybrid simulation of a singlepole three-terminal system, wherein the converter terminals are represented on the analog portion and the transmission line is represented on the digital portion of the hybrid computer. Results include waveforms for the transient behavior of the system during line faults on each of the three transmission branches.

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