The emerging smart-grid and microgrid concept implementation into the conventional power system brings complexity due to incorporation of various renewable energy sources non-linear inverter-based devices. occurrence frequent outages may have a significant negative impact on nation’s economic, societal, fiscal standing. As result, it is essential employ sophisticated monitoring measuring techno...

Modern distribution networks are characterized by higher distortion and faster variability of voltages currents. Accurate synchrophasor, frequency ROCOF measurements thus ask for new techniques trying to reduce latency while limiting the impact spurious components. In this respect, Taylor-Fourier Multifrequency approach is a good candidate Phasor Measurement Units intended system applications. ...

This paper presents a novel fault location method for series compensated transmission lines. It is established based on synchronized voltages sampling and Thevenin impedance from both ends of series compensated transmission line. The method is based on the use of phasor measurement units (PMU) technology which is aimed to be independent of current measurements, fault type, fault resistance, fau...

Ever-increasing energy demand has led to geographic expansion of transmission lines and their complexity. In addition, higher reliability is expected in the transmission systemsdue to their vital role in power systems. It is very difficult to realize this goal by conventional monitoring and control methods. Thus, phasor measurement units (PMUs) are used to measure system parameters. Although in...

Results from Global Positioning System (GPS) spoofing tests against Phasor Measurement Units (PMUs) are presented, demonstrating that PMUs are vulnerable to spoofing attacks. A GPS spoofer can manipulate PMU time stamps by injecting a counterfeit ensemble of GPS signals into the antenna of the PMU’s time reference receiver. A spoofer-induced timing error of only a few tens of microseconds cause...

This paper describes a heuristic approach for optimal placement of phasor measurement units (PMUs) in power system for improving state estimation accuracy. PMUs are able to measure highly accurate bus voltage phasors as well as branch current phasors incident to the buses at which PMUs are installed. Due to cost consideration of PMU placement, power grid utilities are interested in the knowledg...