Real-Time Implementation of Short-Term Voltage Stability Prediction Scheme

A pre-identified voltage template based Short-term Voltage Stability (SVS) assessment scheme is implemented on a real-time platform to verify the operational accuracy by mitigating practical issues such as Phasor Measurement Unit (PMU) data losses. This system is implemented on a supervisory level computer with the aid of synchrophasor application platform called PhasorSmart®. The real-time voltage magnitudes required to mimic power system operational conditions are provided through a Real-time Digital Simulator (RTDS®). The IEEE Nordic system is simulated, and the real-time voltage magnitudes are published through synchrophasor protocol. The data received at the supervisory-level computer is then fed to the PhasorSmart® platform where proposed scheme is programmed using C++. Finally, performance of the proposed SVS prediction scheme under practical operational scenarios is analyzed.