scholarly journals Control strategy for direct voltage and frequency stability enhancement in HVAC/HVDC grids

2021 ◽  
Author(s):  
Neda Azizi ◽  
Hassan Moradi CheshmehBeigi ◽  
Kumars Rouzbehi
Keyword(s):  
Control Strategy ◽  
Frequency Stability ◽  
Direct Voltage ◽  
Stability Enhancement

Sizing and Controller Setting of Ultracapacitors for Frequency Stability Enhancement of Small Isolated Power Systems

2015 ◽  
Vol 30 (4) ◽  
pp. 2130-2138 ◽  
Author(s):  
Lukas Sigrist ◽  
Ignacio Egido ◽  
Enrique Lobato Miguelez ◽  
Luis Rouco
Keyword(s):  
Power Systems ◽  
Frequency Stability ◽  
Stability Enhancement

Višestepena brza regulacija frekvencije u elektroenergetskim sistemima sa neravnomernom distribucijom inercije

2021 ◽  
Vol XXIII (4) ◽  
pp. 1-7
Author(s):  
Jelena Stojković ◽  
◽  
Predrag Stefanov
Keyword(s):  
Control Strategy ◽  
Frequency Control ◽  
Renewable Energy Sources ◽  
Frequency Stability ◽  
Test System ◽  
Rate Of Change ◽  
Electricity Production ◽  
Rotational Inertia ◽  
Telecommunications Infrastructure ◽  
Local Measurements

Integration of renewable energy sources (RES) is one of the key factors in the fight against climate change and they are becoming to take a larger share in electricity production. The systems with a high penetration of RES have small rotational inertia and are more vulnerable in terms of frequency stability. This paper proposes strategy for multistage fast frequency control (FFC) provided by converter-connected resources. They can quickly change the output active power and provide frequency support immediately after the disturbance during the period before that frequency reaches its nadir. The proposed control strategy uses only local measurements of the rate of change of frequency (RoCoF) and there is no need for complex telecommunications infrastructure. The multistage approach enables dispatched reserve to be proportional to the size of disturbance. RoCoF based FFC provides that more reserves would be dispatched in low-inertia areas that are more sensitive to disturbance and therefore enhance frequency stability. The proposed control strategy is validated on a test system of 3 coherent areas and the simulation results confirm that more reserve is dispatched in low-inertia areas that are more affected by disturbance.

scholarly journals Artificial Intelligence-Based Power System Stabilizers for Frequency Stability Enhancement in Multi-machine Power Systems

IEEE Access ◽  
2021 ◽  
pp. 1-1
Author(s):  
Aliyu Sabo ◽  
Noor Izzri Abdul Wahab ◽  
Mohammad Lutfi Othman ◽  
Mai Zurwatul Ahlam Mohd Jaffar ◽  
Hakan Acikgoz ◽  
...  
Keyword(s):  
Artificial Intelligence ◽  
Power Systems ◽  
Power System ◽  
Frequency Stability ◽  
Power System Stabilizers ◽  
Stability Enhancement
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