An Intelligent Load Shedding Scheme for the Micro-grid in Shipboard Power System Using Probabilistic Methods

Deb, Naireeta; Özkan, Gökhan; Hoang, Phuong H.; Papari, Behnaz; Badr, Payam Ramezani; Edrington, Chris S.

doi:10.1109/psc50246.2020.9131191

Cited by 3 publications

(3 citation statements)

References 11 publications

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“…Several adaptive, response-based UFLS schemes were mentioned earlier and some are also proposed in [27][28][29][30] to overcome the deficiencies of the static UFLS. Even probabilistic approaches are proposed for power systems where some loads are not crucial and are allowed to be shed in order to maintain the feed of critical loads [31]. The majority of adaptive UFLS estimate the initial imbalance of power ∆P and then redistributes the total power deficit among several load shedding steps.…”

Section: Classic/static Ufls and Its Challengesmentioning

confidence: 99%

Enhancing Power System Frequency with a Novel Load Shedding Method Including Monitoring of Synchronous Condensers’ Power Injections

et al. 2021

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Under-frequency load shedding (UFLS) is a classic and a commonly accepted measure used to mitigate the frequency disturbances in case of loss-of-generation incidents in AC power grids. Triggering of UFLS is classically done at frequency thresholds when system frequency collapse is already close to happening. The renewed interest for synchronous condensers due to the global trends on massive commissioning of non-synchronous renewable power generation leading to reduction of system inertia gives an opportunity to rethink the approach used to trigger load-shedding activation. This question is especially relevant for the Baltic states facing a desynchronization from Russian power grid and a necessity to operate in an isolated island mode. The main goal of this paper is to introduce a predictive load shedding (LS) method without usage of either frequency or ROCOF measurements based on the monitoring of active power injections of synchronous condensers and to prove the efficiency of the concept through several sets of case study simulations. The paper shows that the proposed approach can provide a greatly improved frequency stability of the power system. The results are analyzed and discussed, the way forward for the practical implementation of the concept is sketched.

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Section: Classic/static Ufls and Its Challengesmentioning

confidence: 99%

Enhancing Power System Frequency with a Novel Load Shedding Method Including Monitoring of Synchronous Condensers’ Power Injections

et al. 2021

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“…Centralized EMS for enhancing the resilience of ship power systems based on probabilistic methods have been presented in [16][17][18][19]. Dynamic prioritization of the loads was considered for load shedding problem in [20,21].…”

Section: Introductionmentioning

confidence: 99%

Energy Management System for Resilience-Oriented Operation of Ship Power Systems

Nguyen¹,

Nguyen²,

Vu³

2021

Preprint

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A resilience-oriented energy management system of ship power systems is proposed.• Multiple types of energy storage systems such as battery energy storage and supercapacitor energy storage systems are considered.• Multi-objective optimization problem and gradient descent algorithm are proposed to balance the trade-off between multiple objectives.• A comparison study between the receding horizon optimization and fixed horizon optimization is presented.• Proposed receding horizon optimization for ship power systems enables real-time implementations.

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“…However, the large uncertainty of the navigation environment and the increasing penetration of renewable energy resources onboard certainly raise the risk of the power supply and demand imbalance, making demand-side load management an essential task to rebalance the power system in case of supply inefficiencies. A typical solution is to categorize the onboard loads into critical, semi-critical, and non-critical loads based on their importance in maintaining the system normal operation, and to shed these loads in order of priority in case of contingencies such as loss of generation or increased load, as in [45][46][47][48].…”

Section: Management From the Demand Sidementioning

confidence: 99%

Power Management Systems for Shipboard Microgrids

Xie¹

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An Intelligent Load Shedding Scheme for the Micro-grid in Shipboard Power System Using Probabilistic Methods

Cited by 3 publications

References 11 publications

Enhancing Power System Frequency with a Novel Load Shedding Method Including Monitoring of Synchronous Condensers’ Power Injections

Enhancing Power System Frequency with a Novel Load Shedding Method Including Monitoring of Synchronous Condensers’ Power Injections

Energy Management System for Resilience-Oriented Operation of Ship Power Systems

Power Management Systems for Shipboard Microgrids

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