Rotate speed recovery method, device and system for double-fed wind power virtual synchronizer
A technology of virtual synchronous machine and doubly-fed wind power, which is applied in the direction of wind power generation, wind engine, wind engine control, etc., can solve the problems of difficulty in realization, secondary drop of fan frequency, high cost, etc., and achieve the goal of improving the problem of secondary drop of frequency Effect
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[0030] The embodiment of the present invention provides a speed recovery method, device and system of a doubly-fed wind power virtual synchronous machine.
[0031] 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 creative efforts fall within the protection scope of the present invention.
[0032] Such as Figure 1A and Figure 1B Shown is the simulation diagram of the MPPT speed recovery mode in the prior art, Figure 1A shows the frequency characteristics of the system when a 4% load disturbance occurs in a power grid with DFIG installed capacity accounting for 20%. Figure 1B Two phases of fre...
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