Dynamic simulation research on mode-switching control strategy of TCSC
2010
Based on the dynamic simulation device of TCSC,a set of mode-switching control strategy is proposed.The dynamic simulation results show that it is impossible to realize mode-switching of TCSC only by changing firing angles.The influence of different quality factor of reactor branch on the hardware bypass switching is analyzed.The TCSC circuit connection is improved by adding small resistance in serial which can benefit the realization of mode switching.By means of forced synchronization of current in thyristor branch with the line current,the mode switching from capacitive mode to Bypass can be implemented.Experimental results show that the proposed control strategy can make the switching process faster and possess better dynamic performance.
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