Parallel connected inverters in islanded mode, are getting momentous attention due to their ability increase the power distribution and reliability of a system. When there different ratings Distributed Generation (DG) units, they will operate parallel connection output voltages, impedance mismatch, or phase that can cause current flow between DG units. The magnitude this circulating sometimes b...

Abstract In the process of accessing distributed power sources in microgrid, there will be serious coupling between active and reactive power, which lead to significant changes inverter outlet voltage impedance increase circulating current phenomenon. The generation accelerate aging devices, reduce efficiency, threaten stable operation system. this paper, mechanism is analysed, basic characteri...

Previous augmented reality displays have rendered crisp virtual walls and virtual objects with finger-surface reactions through haptics feedback devices. The widely used stiffness (or impedance) methods penalize a user’s intrusion into a virtual surface with a force response dependent on the amount of penetration along the contact normal at the virtual proxy location. We present an alternative ...

In haptic simulation, a human operator kinesthetically explores a virtual environment. To achieve a virtual sense of touch, the human interacts with an active mechanical device, called a haptic display. This paper presents an approach to guarantee that this physical manmachine interface remains stable, while maximizing performance. The key element in ensuring stability is the virtual coupling n...

Pseudo-admittance is introduced as a novel bilateral telemanipulation system that is designed to mimic proportional-velocity admittance control on systems where the master is an impedance-type robot. The controller generalizes to systems with slave robots of the impedance or admittance type. Pseudo-admittance uses a proxy with admittance dynamics combined with direct force feedback from the sla...

This article presents an approach to collision avoidance of industrial robots. It is based on the method of artificial potential or force fields. The field is generated by virtual charges which are placed on obstacles. The virtual force acts on the robot which results in the modification of the manipulator path to avoid collisions. Robot path modification is performed by means of impedance cont...

A review of compliant-motion control strategies is presented, applicable to robotic assembly of industrial components. It is argued that the appropriate framework in which to exert intelligent controls is the use of a virtual attractor and a virtual impedance. In this context, multiple strategies are reviewed, including blind search, interpretation of C-space boundaries, event detection and mod...