VSG control apparatus and method, multi-VSG pre-synchronous inter-connection method
A control device and virtual synchronization technology, applied in the direction of single-net parallel feeding arrangement, etc., can solve the problems of phase-locked loop nonlinearity, slow response, difficult damping support mutual coordination, etc.
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[0052] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0053] The purpose of the present invention is to provide a VSG-based control device and method and a multi-VSG pre-synchronization grid connection method. When the frequency of the grid fluctuates, the constant power control of the grid-connected VSG can still be coordinated with the inertia and damping support .
[0054] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be fur...
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