Modelling of a virtual power plant using hybrid automata

Javaid, Chaudhry Jibran; Allahham, Adib; Giaouris, Damian; Blake, Simon; Taylor, Phil

doi:10.1049/joe.2018.8161

Cited by 10 publications

(9 citation statements)

References 15 publications

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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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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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“…Authors in [20] focused on direct load control approach for consumers to participate in VPP-based electricity markets. In [21], authors presented Hybrid Automata (HA) for modeling of VPP with a conceptual control strategy in the presence of combined heat and power (CHP), battery, wind, and solar photovoltaic (PV). Although certain literature has reported RE-based VPP control strategies, there is still ongoing research to develop a mature control structure similar to those in conventional power system.…”

Section: Introductionmentioning

confidence: 99%

Active Power Management of Virtual Power Plant under Penetration of Central Receiver Solar Thermal-Wind Using Butterfly Optimization Technique

et al. 2020

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Striving for the suppression of greenhouse emissions, the modern power network is facing fundamental changes with the utilization of renewable energies (REs) for the future carbon-free society. The utilization of intermittent renewable-green power needs a better power management system and virtual power plant (VPP) can be a vital candidate that meets this demand. This study investigates a coordinated control grid integrated virtual power plant (VPP) in the presence of Central Receiver Solar Thermal System (CRSTS), Wind Turbine Generator (WTG), and Electric Vehicle (EV). To this end, CRSTS employed with thermal storage acts as a dispatchable renewable generating unit and coordinated control of the system units are achieved using the available control strategy on interconnected microgrids in the modified form, employing communication time delay. The proposed control strategy employs the proportional-integral (PI) and PI-derivative (PID) controller. Coordinated power control with real-time communication delay in grid integrated VPP in presence of CRSTS, WTG, and EV is a novel approach. Genetic algorithm (GA), Particle Swarm Optimization (PSO), Slap Swarm Algorithm (SSA), and recent Butterfly Optimization Algorithm (BOA) are used for tuning the necessary control parameters. The results establish the superiority of the BOA over SSA and PSO in suppressing system frequency deviations and tie line power deviation. The analysis of the dynamic response reveals that the consideration of the communication delay in the system expressively impedes the stable operation of the power system.

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“…A sample‐and‐hold circuit, where a digital device controls an analog plant, is another typical example of coordinated hybrid system. A wide range of applications of hybrid systems have been found in, e.g., multi‐cell wireless networks and cyber‐physical systems including power grids 10,11 . In Zheng et al, 12 three kinds of control protocols are designed to achieve consensus in first‐order hybrid systems.…”

Section: Introductionmentioning

confidence: 99%

Resilient group consensus in heterogeneously robust networks with hybrid dynamics

Shang

2020

Math Methods in App Sciences

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This paper studies resilient coordinated control over networks with hybrid dynamics and malicious agents. In a hybrid multi-agent system, continuous-time and discrete-time agents concurrently exist and communicate through local interaction. We introduce the notion of heterogeneous robustness to capture the topological structure and facilitate convergence analysis of hybrid agents over multiple subnetworks, where the exact number and identities of malicious agents are not known. A hybrid resilient strategy is first designed to ensure group consensus of the heterogeneously robust network admitting completely distributed implementation. We then develop a scaled consensus protocol which allows different clusters within each subnetwork, providing further flexibility over the resilient control tasks. Finally, some numerical examples are worked out to illustrate the effectiveness of theoretical results.

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Modelling of a virtual power plant using hybrid automata

Cited by 10 publications

References 15 publications

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

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

Active Power Management of Virtual Power Plant under Penetration of Central Receiver Solar Thermal-Wind Using Butterfly Optimization Technique

Resilient group consensus in heterogeneously robust networks with hybrid dynamics

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