With the decrease in system inertia, frequency security becomes an issue for power systems around world. Energy storage (ESS), due to their excellent ramping capabilities, are considered as a natural choice improvement of response following major contingencies. In this paper, we propose new strategy energy – <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1...

This paper presents a human-scale multi-modal virtual environment. User interacts with virtual worlds using a large-scale bimanual haptic interface called the SPIDAR-H. This interface is used to track user’s hands movements and to display various aspects of force feedback associated mainly with contact, weight, and inertia. In order to increase the accuracy of the system, a calibration method i...

Due to the lack of a physical rotating rotor, photovoltaic generators (PVG) have no inertia. Therefore, replacing traditional synchronous (SG), (source inertia), with PVG will reduce inertia overall power systems. A reduced and damping feature frequently cause instability issues due high rate change frequency (RoCoF), less stringent voltage at nearby point common coupling (PCC). In this paper, ...

To enhance the inertial response and damping capability during transient events this paper investigates an improved active power control for variable speed wind turbines. The optimized power point tracking (OPPT) controller, which swings the turbine operating point from the maximum power point tracking (MPPT) curve to the virtual inertia control (VIC) curves by the frequency deviation, is propo...

In the field of virtual reality, Collision Detection Technology was widely developed for improving the performance of 3D Graphics. Following rapid growth of virtual objects with complex shapes, conventional methods perform harder to effectively detect the collision. Facing the problem, we presented a collision detection algorithm based on improved quantum particle swarm optimization. Firstly, w...

This paper present design, fabrication, and evaluation of a new 6 degree-of-freedom haptic device for interfacing with virtual reality by using a parallel mechanism. The mechanism is composed of three pantograph mechanisms that are driven by ground-fixed servomotors, three spherical joints between the top of the pantograph mechanisms and the connecting bars, and three revolute joints between th...

Haptic feedback is a crucial sensorial modality in virtual reality interactions. Haptics means both force feedback (simulating object hardness, weight, and inertia) and tactile feedback (simulating surface contact geometry, smoothness, slippage, and temperature). Providing such sensorial data requires desk-top or portable special-purpose hardware called haptic interfaces. Modeling physical inte...

The transition to renewable energy-based power systems is fast progressing. One of the main challenges in keeping a system with high operational reliability maintain frequency. As synchronous generator units are being replaced power-electronic converters, rotating mass and inertia decreasing. Virtual machine (VSM) control modern technique that aims compensate for reduction inertia. usage electr...

Haptic feedback is a crucial sensorial modality in virtual reality interactions. Haptics means both force feedback (simulating object hardness, weight, and inertia) and tactile feedback (simulating surface contact geometry, smoothness, slippage, and temperature). Providing such sensorial data requires desk-top or portable special-purpose hardware called haptic interfaces. Modeling physical inte...