A Method for Suppressing Power Swing Peak of UHV Tie Line Based on DC Emergency Control
A tie-line power and emergency control technology, applied in the direction of reducing/preventing power oscillation, etc., can solve the problems of unable to complete large power modulation in a short time, unable to adapt to different scales of transient disturbance power impact, etc., to achieve the improvement of transient power The effect of angular stability
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[0043] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.
[0044] When the interconnection system is affected by the transient power disturbance impact in the area, it usually only takes a few seconds to cause a very high power swing peak on the tie line, such as figure 1 . The purpose of the present invention is to overcome the deficiencies of existing technologies such as DC large-mode power modulation, DC small-mode power modulation, bilateral frequ...
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