Implementation of General Under-frequency Load Shedding Scheme in European Network: challenges and opportunities

Lytvynchuk, Volodymyr A.; Kaplin, Mykola; Bolotnyi, Nickolai P.; Karmazin, О.

doi:10.1109/ess50319.2020.9160052

Cited by 3 publications

(4 citation statements)

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“…In [10] a novel probabilistic algorithm is proposed to investigate the impact of wind turbines on UFLS scheme. Details of multi-stage UFLS plans in European network can be found in [11].…”

Section: Literature Reviewmentioning

confidence: 99%

“…The primary frequency response (PFR) including the governor action is represented via (11) and (12). The level of participation of generation units in the primary frequency control depends on various factors.…”

Section: Multi-area System Frequency Responsementioning

confidence: 99%

“…Regarding Figure 2, the SFR transfer function using the Laplace transform is expressed in (17), where Δ f (s) indicates the level of frequency deviation from the nominal value. In (18) and (19), the continuous-time response of system frequency is determined based on (11) and (17).…”

Section: Multi-area System Frequency Responsementioning

confidence: 99%

“…According to (23), the input disturbance function is considered as a step function with zero initial condition. With substituting the (11) and ( 23) into (17), the steady-state frequency deviation is obtained. Regarding (24), based on the final value theorem, the steady state system frequency is obtained using the (25).…”

Section: Multi-area System Frequency Responsementioning

confidence: 99%

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A multi‐area design of under frequency load shedding schemes considering energy storage system

Alavi‐Koosha,

Amraee,

Oskouee

2023

IET Generation Trans & Dist

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This paper presents a comprehensive under frequency load shedding (UFLS) model that can be implemented in a multi‐area power system with real network characteristics. Conventional single‐area UFLS models operate on the basis of an equivalent center‐of‐inertia (COI) model, which ignores the local dynamics of system frequency response (SFR) and the impacts of load shedding location. Unlike the single‐SFR model, that is commonly utilized in previous works, the suggested multi‐area or multi‐SFR UFLS plan of this research has the distinct benefit of taking into account the dynamics of power transfer across different electric areas. The proposed multi‐area UFLS design incorporates a flywheel energy storage system (FESS) to support the inertial system frequency response and alleviate more than 30% load shedding while improving the frequency nadir by 25%. In order to investigate the performance of the proposed method under high penetrations of inertia‐free renewables, the inertia of the power network is reduced by around 30%; therefore the proposed UFLS scheme is assessed under a low inertia scenario. The proposed multi‐stage UFLS scheme is formulated as a mixed‐integer linear programming problem, and the optimal settings, including frequency set‐points and load shedding, are then optimized. The efficiency of the proposed model is verified using the IEEE‐118 Bus dynamic test system.

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“…In [10] a novel probabilistic algorithm is proposed to investigate the impact of wind turbines on UFLS scheme. Details of multi-stage UFLS plans in European network can be found in [11].…”

Section: Literature Reviewmentioning

confidence: 99%

Section: Multi-area System Frequency Responsementioning

confidence: 99%