Automatic load frequency control in power system
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6 FAQs about [Automatic load frequency control in power system]
What is automatic load frequency control (ALFC)?
Automatic load frequency control (ALFC) plays a significant role in modern power systems to exchange scheduled power between the interconnected areas through tie-lines with minimum steady-state errors of frequency deviation and tie-line power variations.
What are new mechanisms for frequency control?
New mechanisms for frequency control support using flexible load blocks, storage system technologies, and distributed RESs/MGs. In this direction, new demand response and virtual inertia based frequency control approaches are considered as attractive solution methods.
What is power grid frequency control synthesis?
Analysis and synthesis studies of power grid frequency control. Frequency control synthesis covers the frequency control techniques at different control levels, i.e., droop-based or primary control, secondary control, also known as load-frequency control (LFC), tertiary control, and emergency control, demand control, and new control supports.
Why is online frequency control important in a modern power grid?
Online computational aspects of frequency control is an important issue in a modern power grid. Online tuning of frequency control set-points considering the unpredictable load changes can be quite challenging in operation and control. This emphasizes the significant role of data-driven modeling and control techniques in future relevant studies.
Can a triple frequency control loop compensate a large load-generation imbalance?
As discussed above, following a large load-generation imbalance, the provided regulation power by the conventional triple frequency control loops in both power amount and response time points of view may not adequate to compensate the grid frequency and maintain the tie-line power at the scheduled values.
Why are load-side units suitable for grid frequency control?
The switching-based control ability of loads enables the demand to respond faster to system disturbances, in comparison with conventional SGs. This ability together with recent advances in monitoring, computing and communication technologies makes load-side units ideal candidates for grid frequency control.