Low-frequency oscillation control parameter optimization method of a grid-connected double-fed fan with virtual inertia
A technology of virtual inertia and control parameters, which is used in wind power generation, AC network circuits, and single-grid parallel feeding arrangements, etc., which can solve the problems that the control effect is difficult to meet the requirements, there are too many unknown factors, and the wind power grid-connected system model is complex.
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[0025] The present invention will be described in detail below in conjunction with the accompanying drawings. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.
[0026] figure 1 It is a low-frequency oscillation control parameter optimization method and system structure diagram of a large-scale doubly-fed fan grid-connected system with virtual inertia provided by the present invention, including sequentially connected information collection modules, robust random optimization parameter adjustment calculation modules, parameter adjustment Result output module.
[0027] Influence of phase-locked loop on dynamic energy of fan
[0028] figure 2 It is a phase-locked loop model diagram. Double-fed wind turbines usually use phase-locked loop control to provide grid voltage phase angle information. By tracking the position and angular frequency of the dq coordinate axis, it is used for...
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