Comparison of Two Energy Management System Strategies for Real-Time Operation of Isolated Hybrid Microgrids

Azuara-Grande, Luis Santiago; Arnaltes, Santiago; Alonso-Martínez, Jaime; Rodriguez-Amenedo, José Luis

doi:10.3390/en14206770

Cited by 14 publications

(7 citation statements)

References 26 publications

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“…These simulation results show that the coordinated power control using dynamic component separation of the power demand considering the dynamic performances of the connected sources [30,31] is interesting. This control technique avoids the supercapacitors/batteries being outsized as in the classic methods [29][30][31][32][33] for the same power demand profile and allows us to reduce the effect of the load's power fluctuations on VSDG with a possible reduction in the CO 2 [34]. However, the dynamic components assignation to the supercapacitors and batteries increases the electric stress on the SCs and batteries.…”

Section: Simulation Resultsmentioning

confidence: 99%

Coordinated Control of the Hybrid Electric Ship Power-Based Batteries/Supercapacitors/Variable Speed Diesel Generator

Camara,

Dakyo

2023

Energies

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A Hybrid Electric Ship (HES) is investigated in this work to improve its dynamic response to sudden power demand changes. The HES system is based on a Variable-Speed Diesel Generator (VSDG) used for long-term energy supply, with Two Energy Storage Systems (TESSs) using Batteries and supercapacitors for transient power supply. The TESS mitigates the power demand fluctuations and reduces its impact on VSDG, which is linked to a DC-bus through a controlled rectifier. Batteries and Supercapacitors (SCs) are connected in a DC-bus using the bidirectional DC/DC converters to manage the transient and fluctuating components. Two thrusters (one in the front and the second in the back of the Ship) are considered for the propulsion system. The HES power demand includes the requirement of the thrusters and embedded power consumers (elevator, package lifting, air conditioning, onboard electronics devices, etc.). The highlight of this paper is based on the HES fast response improvement in sudden power demand situations via TESS-based batteries and supercapacitors. The other highlight concerns the SCs’ electrothermal modeling using an extension of the SCs’ current ripples’ frequency range (0 to 1 kHz), considering parameter evolution according to using the temperature and current waveform. This energy management-based dynamic power component separation method is tested via simulations using a variable operating temperature scenario.

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Section: Simulation Resultsmentioning

confidence: 99%

Coordinated Control of the Hybrid Electric Ship Power-Based Batteries/Supercapacitors/Variable Speed Diesel Generator

Camara,

Dakyo

2023

Energies

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“…Many articles have looked into these control strategies. Despite the fact that the technologies used in each vary, the majority of applications focus on isolated systems for electrification [34,35], microgrids [36,37], and multi-storage in traction and electric cars [38,39]. Various algorithms in the literature can address this problem [38][39][40][41][42][43][44][45][46][47][48][49][50][51][52][53][54][55].…”

Section: Brief State Of Artmentioning

confidence: 99%

Optimized Power Management Approach for Photovoltaic Systems with Hybrid Battery-Supercapacitor Storage

Rekioua,

Kakouche,

Babqi

et al. 2023

Sustainability

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The paper addresses the ongoing and continuous interest in photovoltaic energy systems (PESs). In this context, the study focuses on an isolated photovoltaic system with hybrid battery-supercapacitor storage (HBSS). The integration of supercapacitors (SCs) in this system is particularly important because of their high specific power density. In photovoltaic (PV) systems, multi-storage systems use two or more energy storage technologies to enhance system performance and flexibility. When batteries and supercapacitors are combined in a PV system, their benefits are maximized and offer a more reliable, efficient, cost-effective energy storage option. In addition, effective multi-storage power management in a PV system needs a solid grasp of the energy storage technologies, load power demand profiles, and the whole system architecture. This work establishes a battery-supercapacitor storage system (HBSS) by combining batteries and supercapacitors. The primary objective is to devise a novel management algorithm that effectively controls the different power sources. The algorithm is designed to manage the charge and discharge cycles of the hybrid battery-supercapacitor energy storage system (HBSS), thereby guaranteeing that the state of charge (SOC) for both batteries and supercapacitors is maintained within the specified range. The proposed management algorithm is designed to be simple, efficient, and light on computational resources. It efficiently handles the energy flow within the HBSS, optimizing the usage of both batteries and supercapacitors based on real-time conditions and energy demands. The proposed method ensures their longevity and maximizes their performance by maintaining the SOC of these energy storage components within the specified limits. Simulation results obtained from applying the management strategy are found to be satisfactory. These results show that the proposed algorithm maintains the SOC of batteries and supercapacitors within the desired range, leading to improved energy management and enhanced system efficiency.

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“…Climate change and increased fuel prices have motivated a massive integration of renewable energy sources (RES) such as wind or solar. Therefore, the electricity generation using the so-called conventional non-environmentally friendly generation has been removed from the isolated electrical power systems [1]. Allowing to reduce the emissions of CO2, have more competitive energy prices and reduce the amortization time of the investments in the electrical power systems [2].…”

Section: Introductionmentioning

confidence: 99%

Real-Time Implementation of Two Grid-Forming Power Converter Controls to Emulate Synchronous Generators

Azuara-Grande

González-Longatt

Tricarico

et al. 2022

2022 IEEE Biennial Congress of Argentina (ARGENCON)

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Due to climate change, progressively more isolated electrical power systems are integrating renewable energy sources. But the transition from synchronous generators to converter-interfaced generators also produces a few issues due to the lack of rotational inertia. The voltage source converters (VSCs) enabled with the so-called grid-forming control may provide a solution for the converter-dominated electrical power systems. This paper presents the implementation of two control strategies, Virtual Synchronous Machine (VSM) and Synchronverter (SynC), for converter-interfaced generators in the real-time environment (Typhoon HIL) to emulate synchronous generator (SG) behaviour. The advantages of grid-forming converter control to provide inertia response service and make the system more robust to changes in the active power of loads have been demonstrated in realtime simulations through a scenario of a positive load step connected to the converter.

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Comparison of Two Energy Management System Strategies for Real-Time Operation of Isolated Hybrid Microgrids

Cited by 14 publications

References 26 publications

Coordinated Control of the Hybrid Electric Ship Power-Based Batteries/Supercapacitors/Variable Speed Diesel Generator

Coordinated Control of the Hybrid Electric Ship Power-Based Batteries/Supercapacitors/Variable Speed Diesel Generator

Optimized Power Management Approach for Photovoltaic Systems with Hybrid Battery-Supercapacitor Storage

Real-Time Implementation of Two Grid-Forming Power Converter Controls to Emulate Synchronous Generators

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