Large power network graded voltage control method under wind power access
A voltage control method and a secondary voltage control technology, applied in the direction of AC network voltage adjustment, circuit devices, AC network circuits, etc., can solve the problems that the dominant node cannot be adaptable and not suitable for online calculation, etc., and achieve fast clustering speed , Meet the effect of online application requirements
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[0044] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0045] In view of the random state fluctuation caused by wind power access, the online adjustment of the dominant node selection must consider the engineering reality of the three-level voltage control mode. If the dominant node is adjusted too frequently, the secondary voltage control will continuously adjust the control target, which will bring many difficulties in the regulation strategy and regulation cycle. If the dominant node chooses to update too slowly, and cannot track the changes in the system's operating status in time, it will affect the overall control effect. For this reason, the cycle of online selection of the dominant node needs to comprehensively consider the random fluctuation of the system operating state and the time scale of the third-level and second-level voltage control.
[0046] In order to realize the decoupling of the terti...
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