Problem statement: The Interline Power Flow Controller (IPFC) is a novel device which can increase transient stability of power system. To verify the capability of the effect of IPFC on stability improvement of power system, the suitable mathematical model and control strategy of IPFC are needed to be presented. Approach: This study presented the mathematical model and control strategy of IPFC....

The dynamic voltage restorer (DVR) is one of the modern devices used in transmission systems to protect power flow against sudden changes in voltage amplitude. The proposed algorithm is applied to some disturbances in load voltage caused by induction motors starting, and a three-phase short circuit fault. Also, the capability of the proposed DVR has been tested to limit the downstream fault cur...

The interline power flow controller (IPFC) can control the active and reactive of different lines in system. To utilize flexible ability IPFC increase damping characteristic its AC system, this paper proposes a low-frequency oscillation (LFO) suppress method through IPFC. LFO is designed by adding supplementary signals to outer current loop In addition signals, are also added related loop, whic...

In meshed high-voltage direct current (HVdc) grid, the flows through lines cannot be controlled with sufficient freedom without additional power electronics-based devices, namely flow controller (CFC). this article, a novel hybrid modular interline CFC is proposed based on H-bridge submodules and thyristor valves. Due to its modularity, particularly suitable for applications requiring high volt...