New types of FACTS-devices for power system security and efficiency

This paper provides an overview of new types of FACTS devices. These devices are considered for applications in real network cases in Europe and China. The value of these FACTS is the improvement of security and efficiency of power transmission networks. Fast controllability in emergency situations provides increased flexibility and therefore stability and security advantages. The flexibility in control allows operating closer to stability limits and improves the efficiency of existing networks. The considered devices are dynamic power flow controller (DPFC), fault current limiter (FCL), Static Synchronous Compensator (STATCOM) with energy storage and Voltage Source Converter based HVDC (VSC-HVDC). The application scenarios are taken from UCTE (Benelux, Austria) and China (Shanghai). The studies are based on public available simplified network data.