Results 61 to 70 of about 1,100 (215)
A Simple Time-Domain Algorithm for Synchrophasor, Frequency and ROCOF Estimation
The proliferation of distributed energy resources and lug-in electric vehicles is expected to change present distribution systems, thus stressing the role of measurement instrumentation enabling safe and flexible smart grid operation. In this context, Phasor Measurement Units (PMUs) are required to measure amplitude, phase, frequency and rate of change
Macii, David, Petri, Dario
openaire +1 more source
Beyond 50 Hz, Unlocking Voltage and Frequency for More Flexible Grids
This paper proposes a vision that redesigns the distribution grid with asynchronous clusters enabled by power‐electronic interfaces as fundamental units, each capable of operating with independent frequency and voltage magnitude, providing bidirectional and controllable power flow. The vision suggests paradigm shifts redefining the roles of voltage and
Qiucen Tao +7 more
wiley +1 more source
Grid‐forming static var generators (SVG) with supercapacitors and power electronics can provide dynamic reactive compensation and inertia support, but challenges exist in coordinating their inertia support with automatic generation control (AGC) units in renewable energy gathering stations.
Jianhui Meng +4 more
wiley +1 more source
Avoiding the non-detection zone of passive loss-of-mains (islanding) relays for synchronous generation by using low bandwidth control loops and controlled reactive power mismatches [PDF]
Generation connected to electrical distribution systems requires reliable and timely detection of loss of-mains (islanding). Passive loss of mains detection relays typically use measurements of parameters such as frequency, phase, and the magnitudes of ...
Roscoe, Andrew +2 more
core +1 more source
Artificial neural network assisted robust droop control of autonomous microgrid
Electric grid is vulnerable to power imbalance and inertia is the grid's response to overcome such disturbance. Augmentation of power electronic converter based renewable energy technologies like Photovoltaic Generators (PVG) and batteries in utility ...
Sidra Kanwal +3 more
doaj +1 more source
Controllability-Oriented Method to Improve Small-Signal Response of Virtual Synchronous Generators
This paper presents a method for optimizing the inertia constants and damping coefficients of interconnected virtual synchronous generators (VSGs) using a genetic algorithm.
Antonija Šumiga +3 more
doaj +1 more source
ABSTRACT The virtual synchronous generator (VSG), as a representative grid‐forming control method, has become a key technology in distributed renewable energy systems. However, there exists an inherent trade‐off between fast power reference tracking and high virtual inertia support in conventional VSG control.
Yubin Pang +3 more
wiley +1 more source
Impact of Loss of Generation on Bus Voltage Frequency and RoCoF
This study investigates how the loss of a generator impacts bus voltage RoCoF post-disturbance. The results show that the fastest bus voltage RoCoFs will occur close to generators impacted the most by the disturbance but this may not be the closest ...
Doheny, Damien, Conlon, Michael
core +2 more sources
Synthetic inertia generation is essential in power grids with high penetration of renewable energy sources (RES). The inverters interfacing the RES with the grid are equipped with dedicated controllers that set a power reference proportional to the rate ...
Valentina Baruzzi +4 more
doaj +1 more source
Hardware Test and Validation of the Angular Droop Control: Analysis and Experiments
This work presents the first hardware‐based implementation of angular droop control for grid‐forming converters. By linking active power to angle deviation, the control strategy enables exact frequency regulation and merges primary with secondary control.
Taouba Jouini +3 more
wiley +1 more source

