Droop control, inertia and PD control are three typical frequency response (FR) strategies of grid-tied inverters interfaced renewable energy sources (RES) to restrain the power system indicators, i.e., deviation ( $\Delta \omega $ ) ...

Nowadays, the renewable energy sources in microgrids (MGs) have high participation to supply consumer’s demand. In such MGs, problems as system frequency stability, inertia, and damping reduction are threatened. To overcome this challenge, employing virtual inertia control (VIC) concept MG structure could be considered a viable solution improve response. Hence, work proposes novel modeling for ...

The paper pursues two aims. First, to revisit the classical electromagnetic mass theory and develop it further by making use of a corollary of general relativity that the propagation of light in non-inertial reference frames is anisotropic. Second, to show that the same type of acceleration-dependent self-interaction effects that give rise to the inertia and mass of the classical electron appea...

Abstract As a clean and effective renewable energy source, PV has been widely used in power systems. The application of VSG technology can effectively improve the system inertia reduction problem caused by grid connection storage units. virtual damping coefficient control have unique advantages being flexible controllable. This paper designs strategy which be flexibly adjusted according to freq...

A multitude of tasks that we perform on a daily basis require precise information about the orientation of our limbs with respect to the environment and the objects located within it. Recent studies have suggested that the inertia tensor, a physical property whose values are timeand co-ordinate-independent, may be an important informational invariant used by the proprioceptive system to control...

Five experiments were designed to determine whether a rotating, transparent 3-D cloud of dots (simulated sphere) could influence the perceived direction of rotation of a subsequent sphere. Experiment 1 established conditions under which the direction of rotation of a virtual sphere was perceived unambiguously. When a near-far luminance difference and perspective depth cues were present, observe...

gait rehabilitation using body weight support on a treadmill is a recommended rehabilitation technique for neurological injuries, such as spinal cord injury. in this paper, a new robotic orthosis is presented for treadmill training. in the presented design the criteria such as low inertia of robot components, backdrivability, high safety and degrees of freedom based on human walking are conside...

Although the virtual synchronous generator provides a grid-friendly operational mode for power converters, it may also introduce disadvantages similar to traditional such as oscillation in parallel due large inertia. This article proposes an additional damping strategy suppress oscillation. After analyzing relationship between output and angular acceleration, is designed by acceleration control...

The rotational inertia of an animal can be expected to influence directly its ability to execute rapid turning maneuvers. We hypothesized that a ninefold increase in rotational inertia would reduce maximum turning performance to one-ninth of control values. To test this prediction, we increased rotational inertia about the vertical axis of six human subjects and measured their ability to turn d...