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To realise the accurate and real-time compensation of the harmonics of a power system, this study proposes a novel control strategy for shunt active power filter (SAPF), adopting the composite strategy of neural network proportional-integral (PI) control and dual-repetitive controller (DRC). In DRC, one repetitive controller is used to ensure current tracking accuracy and the other one is used to...
For stacked double-rail turn-augmented railgun, two pairs of sub-rails are stackedand. Each pair of sub-rails provide guidance for one armature, and the two armatures push forward together one projectile. While for plane single-rail turn-augmented, the augmented turns are arranged outside the main rails where one armature is placed. Since the existence of mutual inductance, launch performance of two...
Considering the magnetic nonlinear characteristic of iron core and its structural complexity, the calculation model of Multi-phase Synchronous Generator is established with nonlinear FEM. Then the method and analysis steps of no-load characteristics analysis and rated field current calculation are given in detail. On the basis of electromagnetic field calculation of the twelve-phase synchronous generator,...
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