This paper proposes an online decentralized and data-driven method for synchronous generator rotor speed inertia estimation. First, analytical relationship between the terminal voltage/current phasors its internal is derived using Thevenin equivalent. The parameters of latter are obtained via a recursive estimator, which allows us to estimate generator’s from without need any information. Secon...

When disturbances occur in power grid, monitoring, control and protection systems are required to stop the grid degradation, restore it to a normal state, and hence minimize their effects. However, in wide area power grid resulting from large extension and interconnection with neighbor grids, classical systems based on local independent measurements and decisions are not able to consider the ov...

This paper describes the MedFasee project aiming at the development of a phasor measurement system (PMS) prototype and its applications for monitoring and control of power systems operation. A review of the state of the art, presented in the paper, provided the starting point for the project. A PMS simulator, developed to identify functionalities and specify system components, is presented. The...

Phasor measurement Being able to determine phasors across the power system at a fixed point in time has the potential to solve these problems. One of the key components of future utility systems will therefore be Phasor Measurement Units (PMUs). PMUs rely on a GPS time signal for extremely accurate time-stamping of the power system information. A GPS satellite receiver (see box on page 60) prov...

This paper presents a review of the Phasor Measurement Units employed in the Modern Power Systems. Synchronized phasor measurements have advanced the power system monitoring, controlling, protecting and operating standards in the recent decades. Its potential can be used effectively in the process of upgrading the current power grids into smart grids. With these ideas in mind, a review on PMU i...

Currently, the substantial renewable penetration brings a low inertia issue to Japanese power system, threatening stability and resiliency than ever. The estimation based on transient events provides reliable basis for system control operation. However, poor rate of change frequency extraction from different types locations phasor measurement units (PMUs) could significantly lead errors. As rem...

Conventional synchronous machines are gradually replaced by converter-based renewable resources. As a result, inertia, an important time-varying quantity, has substantially more impact on modern power systems stability. The increasing integration of energy resources imports different dynamics into traditional systems; therefore, the estimation system inertia using mathematical model becomes dif...