Rajesh Rai
Low-frequency oscillation in a power system is a situation in which oscillation persists for a relatively long amount of time, threatening the system's stability. The prominent oscillation modes occur mostly at frequencies of 2.0 Hz or less, and notably at 1.0 Hz or less in the wide-area mode.
Furthermore, as an example of a shift in mechanical input power, Low-Frequency Oscillations (LFO) occur in power systems due to a lack of damping torque in order to dominate power system disturbances.
In addition, read the following articles:
1. https://mdpi-res.com/d_attachment/energies/energies-14-02435/article_deploy/energies-14-02435.pdf
2. https://aip.scitation.org/doi/pdf/10.1063/1.5089053
3. https://journals.sagepub.com/doi/abs/10.7227/IJEEE.47.3.2?journalCode=ijea
I would like to suggest reading the book entitled "Understanding low frequency oscillation in power systems" *K. Prasertwong, **N. Mithulananthan and *D. Thakur *Electric Power System Management, Energy Field of Study, Asian Institute of Technology, Klongluang, P.O. Box 4, Pathumthani, Thailand **Power and Energy System Group, School of Information Technology and Electrical Engineering, The University of Queensland, St. Lucia Campus, Brisbane, Qld 4072, Australia Email: [email protected]
Dear Rajesh Rai , Low-Frequency-Oscillations (LFOs) are related to the small-signal stability of a power system. These cause the negative impacts to obtain the maximum power transfer. A contemporary solution to this problem is the addition of Power System Stabilizers (PSSs) to the automatic voltage regulators on the generators in the power system.
Source: https://www.sciencedirect.com/science/article/abs/pii/S0142061513001476
Dear Rajesh Rai , high penetration of renewable sources into conventional power systems results in reduction of system inertia and noticeable low-frequency oscillations (LFOs) in the rotor speed of synchronous generators. The effective damping of LFOs by incorporating a supplementary damping controller with a photovoltaic (PV) generating station, where the parameters of this controller are coordinated optimally with those of a power system stabilizer (PSS).
Source: Article Effective damping of local low frequency oscillations in pow...
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