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Grid connection of distributed generation would have a certain impact on safe and stable operation of receiving-end network, so systematic analysis on it would be significant. The method for comprehensive assessment on effects caused by grid connection of distributed generation on power grid is presented. The assessment system is divided into steady-state operation assessment, reliability assessment,...
Installing the battery energy storage in the interlinking converter of hybrid AD-DC grid can effectively reduce the exchanged energy of hybrid grid and therefore reduce the losses. Being different from the two-level or three-level interlinking converter for low voltage grid application, this paper proposes an interlinking modular multilevel converter (MMC) with integrated battery energy storage for...
Taking advantages of proportional-integral-differential (PID) control in voltage regulation, and those of linear optimal control in dynamic stability, a new excitation control scheme based on fuzzy logic control is proposed. The method adjusts the weights of voltage regulation tunnel and auxiliary stabilizing tunnel on-line according to different operating conditions by a fuzzy controller, aiming...
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