An integrated framework for sizing and energy management of hybrid energy systems using finite automata

Khawaja, Yara; Allahham, Adib; Giaouris, Damian; Patsios, Charalampos; Walker, Sara; Qiqieh, Issa

doi:10.1016/j.apenergy.2019.04.185

Cited by 34 publications

(12 citation statements)

References 48 publications

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“…Its primary function is to manage the energy production and utilization such that uninterrupted power flow from various sources to the load is ensured. In addition, other objectives, such as reducing the system cost, optimizing the usage of the HES components, and maximizing the efficiency, may be set according to the localized requirements [7]. Several research works dedicated to energy management strategies of HES have been published, with a few of them focusing on ensuring the power balance and the demand satisfaction [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…In addition, other objectives, such as reducing the system cost, optimizing the usage of the HES components, and maximizing the efficiency, may be set according to the localized requirements [7]. Several research works dedicated to energy management strategies of HES have been published, with a few of them focusing on ensuring the power balance and the demand satisfaction [6][7][8]. However, the control strategies for the grid-connected system differs from the off-grid system.…”

Section: Introductionmentioning

confidence: 99%

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Stateflow-Based Energy Management Strategy for Hybrid Energy System to Mitigate Load Shedding

et al. 2021

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This study investigates the potential application of Stateflow (SF) to design an energy management strategy (EMS) for a renewable-based hybrid energy system (HES). The SF is an extended finite state machine; it provides a platform to design, model, and execute complex event-driven systems using an interactive graphical environment. The HES comprises photovoltaics (PV), energy storage units (ESU) and a diesel generator (Gen), integrated with the power grid that experiences a regular load shedding condition (scheduled power outages). The EMS optimizes the energy production and utilization during both modes of HES operation, i.e., grid-connected mode and the islanded mode. For islanded operation mode, a resilient power delivery is ensured when the system is subjected to intermittent renewable supply and grid vulnerability. The contributions of this paper are twofold: first is to propose an integrated framework of HES to address the problem of load shedding, and second is to design and implement a resilient EMS in the SF environment. The validation of the proposed EMS demonstrates its feasibility to serve the load for various operating scenarios. The latter include operations under seasonal variation, abnormal weather conditions, and different load shedding patterns. The simulation results reveal that the proposed EMS not only ensures uninterrupted power supply during load shedding but also reduces grid burden by maximizing the use of PV energy. In addition, the SF-based adopted methodology is envisaged to be a useful alternative to the popular design method using the conventional software tools, particularly for event-driven systems.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Stateflow-Based Energy Management Strategy for Hybrid Energy System to Mitigate Load Shedding

et al. 2021

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“…To achieve this target, power systems planners must overcome a major challenge of intermittency in RES if integrating them into distribution networks is to be done on a large scale. A solution to this challenge is the usage of Battery Energy Storage Systems (BESS) with advanced coordination techniques to handle the control of both discrete and continuous variables resulting from the new complex distribution networks [2], [3]. In this study, solar power and large BESS will be exploited for future grid integration of large capacity RES from a Distribution Network Operator's (DNO's) viewpoint.…”

Section: Introductionmentioning

confidence: 99%

Energy Management of Microgrids Using Power Pinch Analysis in the Presence of Network Constraints

Odigwe

Allahham

Giaouris

2021

2021 9th International Conference on Smart Grid (icSmartGrid)

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Power Pinch Analysis (PoPA) has been previously applied on simple microgrids, assuming no network losses and only one electrical energy storage system. In this work, we apply PoPA on a more realistic microgird, with several loads, batteries and by considering local network constraints. The graphical approach which PoPA presents, helps in finding the energy targets for energy exchanges between various battery energy storage systems within the distribution network and upstream substation supply. Key to this analysis will be to establish the impact of network line losses in more realistic systems rather than the single standalone grid-connected PV-battery systems where PoPA has been previously presented. The new methodology is implemented on a simple 4-bus radial distribution test system and the results show the possibility of a significant change in energy flow patterns between batteries and upstream supply as network line losses are considered over a 24hour time horizon. MATLAB and MATPOWER have been used to validate the study.

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“…Several researches have concerned with supervisory of hybrid power sources according to the availability of the renewable energy sources, using the graphical tools of modelling. Indeed, those works are based on the modelling of continuous events of a system with bond graphs, energetic macroscopic representation and causal ordering graph [9], other focused only on discrete events by using Petri Nets [10], [11], [12] and automata [13]. In this framework, HREs is considered as a hybrid system with continuous and discrete events.…”

Section: Introductionmentioning

confidence: 99%

Management of Hybrid Renewable Energy Systems Using Differential Hybrid Petri Nets

Fohoue-Tchendjou¹,

Kamla²,

Bouchet³

2020

Technium

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Investigations in this paper concern management of Hybrid Renewable Energy systems. To achieve it, a supervisory system based on hybrid systems concept is designed, in order to ensure power flow between energy generators (solar panel and pico-hydroelectric), batteries and load. Differential Hybrid Petri Net is used to model the proposed supervisory and simulations are made in Matlab environment.Results obtained present a good performance criteria Loss of Power Supply Probability, and this show the effectiveness of our approach in the coordination of HREs components during the energy sharing process by reducing load shedding in microgrid system.

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An integrated framework for sizing and energy management of hybrid energy systems using finite automata

Cited by 34 publications

References 48 publications

Stateflow-Based Energy Management Strategy for Hybrid Energy System to Mitigate Load Shedding

Stateflow-Based Energy Management Strategy for Hybrid Energy System to Mitigate Load Shedding

Energy Management of Microgrids Using Power Pinch Analysis in the Presence of Network Constraints

Management of Hybrid Renewable Energy Systems Using Differential Hybrid Petri Nets

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