Future power systems face several challenges; one of them is the use of high power converters that decouple new energy sources from the AC power grid. This decreases the total system inertia affecting its ability to overcome system frequency's disturbances. The wind power industry has created a controller to enable inertial response on wind turbines generators: Artificial, Emulated, Simulated, ...

The objective of our study is to build a precise model by applying the technique of system identification for the model-based control of a nonlinear robot arm, taking joint-elasticity into consideration. This paper proposes a systematic identification method, called “decoupling identification”, for a serial two-link robot arm with elastic joints caused by the Harmonic drive R © reduction gears....

The inertia of the power system currently lies in a relatively narrow range. However, increasing penetration distributed energy resources (DERs) will significantly reduce level, meanwhile its volatility. This affect system’s ability to contain maximum frequency excursion and recover from large disturbances. In order maintain security stability, common practice is incorporate constraints into un...

We study an extension to the standard voter model, in which voters have an individual inertia to change their state. We assume that this inertia increases with the time a voter has been in its current state. Increasing the level of inertia in the system decelerates the microscopic dynamics. Counter-intuitively, we find that the time to reach a macroscopic ordered state can be accelerated for in...

This paper proposes an online decentralized and data-driven method for synchronous generator rotor speed inertia estimation. First, analytical relationship between the terminal voltage/current phasors its internal is derived using Thevenin equivalent. The parameters of latter are obtained via a recursive estimator, which allows us to estimate generator’s from without need any information. Secon...

Doubly-fed induction generator (DFIG) based wind turbines with traditional maximum power point tracking (MPPT) control provide no inertia response under system frequency events. Recently, the DFIG wind turbines have been equipped with virtual inertia controller (VIC) for supporting power system frequency stability. However, the conventional VICs with fixed gain have negative effects on inter-ar...