Dynamic characteristic analysis of SSSC based on multibridgeinverter

摘要

This paper proposes a static synchronous series compensator basednon a multibridge inverter. The proposed system consists of six H-bridgenmodules per phase which generate 13 pulses for each half period of powernfrequency. The dynamic characteristic was analyzed by simulations withnthe Electromagnetic Transients Program (EMTP) code, assuming that it isninserted in the 154 kV transmission line of a one-machine-infinite-busnpower system. The feasibility of hardware implementation was verifiednthrough experimental works using a scaled model. The proposed systemndoes not require a coupling transformer for voltage injection and hasnflexibility in expanding the operation voltage by increasing the numbernof H-bridge modules