An increasing penetration of renewable generation has led to reduced levels rotational inertia and damping in the power network. The consequences are higher vulnerability disturbances deterioration dynamic response system. To overcome these challenges, novel converter control schemes that provide virtual have been introduced, which raises question optimal distribution such devices throughout Th...

The Cobotic Hand Controller: Design, Control and Analysis of a Novel HapticDisplayEric L. Faulring Haptic displays utilizing cobotic technology are able to simulate virtual environ-ments with high dynamic range. The use of nonholonomic, continuously variabletransmissions allows for extremely high stiffness in directions that would violate avirtual constraint. At the same tim...

An abundance of haptic rendering schemes have been developed to help further presence and immersion in virtual environments. Increasing realism is the main driving force behind this development. Schemes have progressed from simple one-dimensional springs to six degree of freedom particle models, with a wealth of surface and material properties. Because of their relative unimportance, haptic ren...

Virtual synchronization control can be applied to DC/DC converter for enhanced inertia support by imitating the rotor dynamics of synchronous generator (SG). However, efficient power sharing and robust operation ability cannot guaranteed in a multiple parallel-operated converters system. This paper proposes hierarchical scheme achieve higher efficiency superior anti-disturbance with virtual syn...

Abstract With the enormous stress of energy lack and air pollution, renewable sources such as photovoltaic become an effective solution to solve these problems. The penetration inertia-less into power system has adverse effects on overall inertia which threatens stability. As a for this problem, virtual technique can be used controller in order enhance performance maintain its In paper, adaptiv...

The virtual synchronous generator (VSG) is a good solution for stabilizing the power system with high penetration of renewable energy. However, in case serious unbalanced voltage disturbance/fault, conventional VSG may lose voltage, inertia, and damping support characteristics to grid even can cause disconnection This paper proposes an improved fault control strategy coordination STATCOM. propo...

Bulk integration of Distributed Energy Resources (DERs) into the power grids reduces system’s inherent inertial response.The reduced response causes a high Rate-of-Change-of-Frequency (RoCoF) and poses formidable operational challenges for grid frequency stability. Interconnections around world comprehend role value Synthetic Inertia Control (SIC), which is considered as subset Fast Freq...

Limited research has been done on exoskeletons to enable faster movements of the lower extremities. An exoskeleton’s mechanism can actually hinder agility by adding weight, inertia and friction to the legs; compensating inertia through control is particularly difficult due to instability issues. The added inertia will reduce the natural frequency of the legs, probably leading to lower step freq...