This paper presents a method for designing minimal measurement set that include both Supervisory Control And Data Acquisition (SCADA) and Synchronized Phasor Measurements Units (SPMU) data for a Hybrid State Estimation (HSE). The optimal location of Phasor Measurement Units (PMU) is performed by Binary Integer Linear Programming (BILP). Among these PMUs, the highest priority indexed PMUs are se...

Synchronized phasor measurement systems are being widely used around the world and have become essential elements in evolution of operation large electrical power (EPS). These systems, called Phasor Measurement Units (PMUs), capable recording communicating dynamic data from EPSs a synchronized way by GPS with high sampling rate, generate huge set that, among many applications, has capacity to d...

This paper proposes an optimal allocation of phasor measurement unit (PMU) placement model under controlled islanding of power system such that the power network remains observable under controlled islanding condition in addition to normal operation condition. The optimization objective of proposed model is to reduce the number of installed PMUs by using hybrid optimization algorithm. The objec...

Modern power grids are increasingly relying on real-time data, such as those from Phasor Measurement Units (PMUs), for their control and management operations. Due to its dependence on the Internet for data transfer, the grid is susceptible to a wide range of cyber attacks. Among these, data manipulation attacks are of particular interest in the context of PMU data, due to their potential for c...

Present power systems operate in more and more difficult conditions generated by various physical and economic factors. Pushing the power system closer to its physical limits worsens the reliability and security of the general operating conditions. Hence, a better control across the entire grid, through more intensive online analysis is needed. At present, a common point of view considers that ...

The concept of using phasors to describe power system operating quantities dates back to 1893 and Charles Proteus Steinmetz’s paper on mathematical techniques for analyzing AC networks. More recently, Steinmetz’s technique of phasor calculation has evolved into the calculation of real time phasor measurements that are synchronized to an absolute time reference. Although phasors have been clearl...

Phasor Measurement Units (PMU) are playing an increasingly important role in wide-area monitoring and control of power systems. PMUs allow synchronous real-time measurements of voltage, phase angle and frequency from multiple remote locations in the grid, enabled by their ability to align to Global Position System (GPS) clocks. Given that this ability is vulnerable to GPS spoofing attacks, whic...