Background and Objectives: Virtual inertia control, as a component of a virtual synchronous generator, is used for the implementation of synchronous generator behaviour in microgrids. In microgrids that include high-capacity distributed generation resources, in addition to virtual inertia, virtual damping can also lead to improvement of frequency stability of the microgrid. The purpose of the c...

Although the deployment and integration of isolated microgrids is gaining widespread support, regulation microgrid frequency under high penetration levels renewable sources still being researched. Among numerous studies on stability, one key approach based integrating an additional loop with virtual inertia control, designed to mimic behavior traditional synchronous machines. In this survey, re...

This paper addresses the problem of frequency control in autonomous diesel-based power system with high penetration of renewables. Usually, small power systems with high penetration of renewable energies are supplied by one or two small diesel generators, resulting in a system with a relatively low moment of inertia, and which can be susceptible to significant frequency variations. However, fre...

For the time being, renewable energy source (RES) penetration has significantly increased in power networks, particularly microgrids. The overall system inertia is dramatically decreased by replacing traditional synchronous machines with RES. This negatively affects microgrid dynamics under uncertainties, lowering frequency stability, specifically islanded mode of operation. Therefore, this wor...

In this paper, an adaptive virtual inertia-damping system based on model predictive control (MPC) is proposed to enhance the frequency dynamic performance of islanded microgrids (MGs) considering a high penetration level renewable energy sources (RESs). Recently, large amount RESs replacing traditional generating units, causing undesirable effect MG stability and inertia, thus weakening MG. The...

In this paper, the concept of forcefree control is extended to realize flexible motion of industrial articulated robot arms under the virtual operational circumstances such as free of inertia, friction and gravity through independent compensation of inertia, friction and gravity. The forcefree control with independent compensation was verified with an experimental study of an actual industrial ...