An Introduction to Synchrophasors
نویسندگان
چکیده
The awareness of the state of the power grid, such as voltage magnitude, frequency and phasor angle is critical to maintain reliable and stable operations of the power grid. Synchronized by a common timing source, synchrophasors measure the electrical waves on power grids. The collected data are transmitted to the central server for further data processing and analysis, such as abnormal event detection and location, power flow analysis. However, the high installation fees and large form factors prevent the large-scale deployment of the synchrophasors. In this paper, a brief history and the basic principles of synchrophasors are introduced. The state-of-theart synchrophasor technologies and the smart grid protection method using Phasor Measurement Units (PMU) a member of the synchrophasor family, are presented. The application and the challenges of synchrophasor technologies are also discussed.
منابع مشابه
Real-Time Synchrophasor Applications for Wide-Area Protection, Control, and Monitoring
To date, synchronized phasor measurements have been used mainly for power system model validation, post-event analysis, real-time display, and other similar activities. However, synchrophasors have a greater potential than monitoring and visualization. Synchrophasors will increasingly contribute to the reliable and economical operation of power systems as real-time control and protection scheme...
متن کاملObservability and Estimation Methods Using Synchrophasor
Intermittent generations such as large-scale renewable energy increases the risk of instability in a power grid. In this paper, we introduce the concept of observability and its computational algorithms for power networks equipped with synchrophasors. The goal is to estimate the angles and its derivatives around unstable trajectories, the information that is critical for the detection of power ...
متن کاملPower System Observability and Dynamic State Estimation for Stability Monitoring Using Synchrophasor Measurements
Growing penetration of intermittent resources such as renewable generations increases the risk of instability in a power grid. This paper introduces the concept of observability and its computational algorithms for a power grid monitored by the wide-area measurement system (WAMS) based on synchrophasors, e.g. phasor measurement units (PMUs). The goal is to estimate real-time states of generator...
متن کاملSynchrophasors for Distribution Applications
The changing nature of the distribution grid leads to new concerns in system operation. New resources connected at the distribution level, changing load characteristics, and increased reliability requirements all point to the need for improved monitoring and control capabilities. Many existing synchrophasor applications have been installed to address distribution concerns. These applications in...
متن کاملMicro-Synchrophasors for Power Distribution Monitoring, a Technology Review
The smart grid revolution is creating a paradigm shift in distribution networks that is marked by new, significant intermittencies and uncertainties in power supply and demand. These developments include the dramatic increase in the adoption of distributed energy resources (DER), electric vehicles, energy storage, and controllable loads. This transformation imposes new challenges on existing di...
متن کامل