Abstract
A static synchronous series compensator (SSSC) integrated with an energy storage system (ESS) can provide superior performance in power flow control, transient stability improvement and power oscillation damping. This paper focuses on comparing the steady state characteristics of the SSSC with ESS and without ESS. The SSSC output voltage range, compensated output power, operating modes and its effects on transmission line power flow control are extensively discussed using characteristic curves. Based on these curves, a new generalized PQ decoupled control concept is proposed for an SSSC with a battery energy storage system (BESS). The experimental validation of the proposed control is carried out on a laboratory SSSC/BESS setup.
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