Power system additional wide-area damping controller design method giving consideration to time lag
A power system, wide-area damping technology, applied in circuit devices, AC network circuits, reducing/preventing power oscillations, etc., can solve problems such as the optimization design of WADC, the influence of wide-area information control effect is not considered, etc.
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[0082] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:
[0083] Such as figure 1 Shown: The time-delay link is introduced in the modeling process of the actual large-scale power system. The time-delay power system includes four parts: time-delay-free power system, wide-area feedback time-delay, additional WADC and wide-area output time-delay. The connection relationship between each part is shown in the figure. exist figure 1 middle, y f is the output of the time-delay-free power system, y df To account for the wide-area feedback signal with feedback lag and as input to the damping controller, y c is the output of the wide-area damping controller, y dc The output of the wide-area damping controller to consider the output time lag is also used as the control input of the time-delay-free power system.
[0084]The eigenvalues of the delay system lying in the left half complex plane are mapped to the unit circl...
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