On Full-Bridge Bipolar MMC-HVDC Control and Protection for Transient Fault and Interaction Studies
作者： Simon Wenig , Max Goertz , Carolin Hirsching , Michael Suriyah , Thomas Leibfried
DOI: 10.1109/TPWRD.2018.2823770
关键词: High-voltage direct current 、 Modular design 、 Power transmission 、 Computer science 、 Network topology 、 Fault detection and isolation 、 Phase-locked loop 、 Transient (oscillation) 、 Fault (power engineering) 、 Electronic engineering
摘要: Bipolar high voltage direct current (HVdc) links present one reasonable solution to realize bulk power transmission schemes. Especially if full-bridge modular multilevel converter topologies (FB MMC) are utilized, a broad variety of operational advantages exists. To completely unveil intrinsic technological potentials, comprehensive control and protection concepts discriminate handle ac, dc, as well internal faults essential. The proposed scheme consists fast selective multizonal fault detection paired with decoupled ac dc controls. As result, actively controlled interruption reactive injection incorporated. It is demonstrated that quantities remain within feasible technical boundaries, interactions limited or even fully mitigated, thresholds can be chosen enable tripping. validate evaluate the concept, simulations for characteristic performed in electromagnetic transients software.
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