Virtual inertia controllers (VICs) for wind turbine generators (WTGs) have been recently developed to compensate the reduction of in power systems. However, VICs can induce drivetrain torsional oscillations WTGs. This paper addresses this issue and develops a novel nonlinear VIC based on objective holographic feedback theory definition completely controllable system Brunovsky type. Simulation r...

The brushless doubly-fed wind power system based on conventional control strategies lacks ‘inertia’ and the ability to support grid, which leads decline of grid stability. Therefore, a strategy reluctance generator (BDFRG) virtual synchronous (VSG) is proposed solve problem in this paper. output characteristics BDFRG VSG are similar (SG), can frequency increase ‘inertia’. According mathematical...

Virtual synchronous generator (VSG) has been a grid-friendly integration control technique for the of grid-connected inverters. However, emulated inertia and damping VSG can also be used in field dc systems. In this article, virtual is proposed to dampen wideband oscillation voltage microgrid. The strategy contributes maintaining operation converter with network. Besides, relationships among da...

abstract: gridlock is an extreme traffic state where vehicle cannot move at all. this research studies the development of gridlock by theoretical and numerical analysis. it is shown that the development of gridlock can be divided into several stages. the core of the development is the evolution of congestion loop. a congestion loop is comprised of a number of consecutively connected spillover l...

A zero-inertia micro-grid is a power system consisting of multiple renewable energy sources and storage systems without the presence conventional synchronous generators. In such system, large variation load or source sides during islanded mode operation extremely degrades micro-grid's voltage frequency stability. This study presents virtual inertia-based predictive control strategy for small-sc...

Nowadays, the penetration level of renewable energy sources (RESs) has increased dramatically in electrical networks, especially microgrids. Due to replacement conventional synchronous generators by RESs, inertia microgrid is significantly reduced. This a negative impact on dynamics and performance face uncertainties, resulting weakening stability, an islanded operation. Hence, this paper focus...

This paper presents a novel upper extremity motor function rehabilitation system and an assessment system. The rehabilitation system is an active rehabilitation that can be manipulated by patients through a haptic device and an inertia sensor to perform a tracking task in virtual environment with coordination training of bilateral upper extremity. The design of system aims to augment patients’ ...

This paper proposes adaptive virtual inertia for the synchronverter model implemented in a wind turbine generator system integrated into grid through back-to-back converter. A linear dynamic is developed proposed inertia, which employs frequency deviation and rotor angle of as state variables droop gain control variables. In addition, uses quadratic regulator to ensure optimal balance between f...