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For large scale AC/DC transmission schemes with multiple series capacitors compensations, how to assess the risk of subsynchronous resonance (SSR) rapidly is of great practical significance to ensure that the grid operates safely and stably. According to the practical project of meeting summer peaks in 2009 of China Southern Power Grid (CSG), this paper combines a static equivalence method, Modified...
In the traditional controller design, local signal is only chosen to be the feedback variable, and improvement of single performance in the system is considered. This way to design controller could make uncertain affect to other performance in the system. A comprehensive performance index is used in the coordinated control theory, and the controller which is more coordinated is designed. By using...
Series capacitors compensations may cause subsynchronous resonance (SSR) of steam turbine-generators. Using the principle which is depressed SSR by STATCOM and choosing appropriate measured data to design the subsynchronous damping control (SSDC) based on improved particle swarm optimization algorithm which is presented in this paper. Regard the controller parameter of STATCOM as adaptive parameter...
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