Grid Stabilization with PMU Signals- A Survey
نویسنده
چکیده
This paper presents critical survey along with the novel concept of smart power flow controller with Phasor Measurement Units (PMUs) signals for stability enhancement of a large power system. Also, the current status of Wide Area Measurement Systems (WAMS) and developments in real time applications of synchrophasor technology in power system has been adequately addressed. It has been noticed that with the help of synchrophasor technology, the system operators are now able to not only monitor and understand the transient/dynamic behaviour of the power system in real time at the control centres but also take quick restoration measures which was not possible in conventional SCADA system. PMUs deployment has shown encouraging results in recent contingencies, by way of assisting system operator with relatively better visualization, for Indian system. Thus, visibility of the network state at milliseconds level has enhanced the security, reliability and stability of the power system. This paper provides understanding of PMUs application and some novel research concept. Keywords—Phasor Measurement Units (PMUs), Wide Area Measurement System (WAMS), Phasor Data Concentrator (PDC), Rate of Change of Frequency (ROCOF), Global Positioning Satellite (GPS), State Estimation (SE), Weighted Least Square State Estimation (WLSE), Electricity Market Mechanism (EMM), Energy Management System (EMS).
منابع مشابه
A Robust PMU Placement Method Against Spoofing Attacks; Spoofing Detection and Data Refinement
In some recent articles, the spoofing of Phasor measurement unit (PMU) GPS receiver has been highlighted as a threat to power grid protection system. Having spoofed PMU GPS signals, one can manipulate the measurements and inject bad data to power grid protection system. The previous anti spoofing methods are all based on GPS signal analysis. The mentioned methods are just able to detect spoofin...
متن کاملA Novel PMU Anti-Spoofing Algorithm Based on Smart Grid Infrastructures
Phasor measurement unit (PMU) GPS receiver spoofing has been addressed in the recent literatures. Having spoofed GPS signals, the spoofer can inject bad data into power system control center and consequently the protection system will face serious problems. The existing anti spoofing techniques are all based on GPS signal analysis and are just able to detect spoofing. However, as PMUs are place...
متن کاملEvaluation of the vulnerability of phasor measurement units to GPS spoofing attacks
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...
متن کاملPMU-Based Matching Pursuit Method for Black-Box Modeling of Synchronous Generator
This paper presents the application of the matching pursuit method to model synchronous generator. This method is useful for online analysis. In the proposed method, the field voltage is considered as input signal, while the terminal voltage and active power of the generator are output signals. Usually, the difference equation with a second degree polynomial structure is used to estimate the co...
متن کاملAn Electrical Structure-Based Approach to PMU Placement in the Electric Power Grid
The phasor measurement unit (PMU) placement problem is revisited by taking into account a stronger characterization of the electrical connectedness between various buses in the grid. To facilitate this study, the placement problem is approached from the perspective of the electrical structure which, unlike previous work on PMU placement, accounts for the sensitivity between power injections and...
متن کامل