Robust Power Management and Control for Hybrid AC-DC Microgrid

Buduma, Parusharamulu; Das, Madan Kumar; Mishra, Sukumar; Panda, Gayadhar

doi:10.1109/icepe50861.2021.9404470

Cited by 2 publications

(3 citation statements)

References 18 publications

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“…3 (c). Similarly, other different case studies are verified in [1]. The results reveal that the AC-DC Microgrid's OPMS and MORLQR control scheme are effectively implemented.…”

Section: Simulation Resultsmentioning

confidence: 86%

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Optimal Power Management and Robust Control Scheme for AC-DC Microgrid Involving Renewable and Conventional Sources

Buduma,

Pal,

Kumba

et al. 2024

Preprint

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Hybrid AC-DC Microgrid systems have recently emerged as a promising method for connecting AC loads with AC Microgrids (ACM) and DC loads with DC Microgrids (DCM). The Bidirectional Power Converter (BPC) allows the AC-DC Microgrid to distribute power between the ACM and DCM. Effective supervisory power sharing and robust control methods are needed to share power among the AC-DC Microgrid sources and ensure seamless operation during different uncertain conditions. Also, suitable islanding and grid synchronisation techniques are needed to connect and disconnect the Microgrid with the utility grid seamlessly. In this study, an Optimal Power Management Strategy (OPMS) is considered for the sharing of power among the sources. To implement the OPMS, an equivalent robust optimization problem for a restricted data set is used. The goal of optimization is to distribute power while maximizing the use of renewable energy, minimizing the use of conventional energy, and using minimal energy transfer through the BPC. To achieve robust tracking commitment and robust control during the parameter uncertainty, a nested loop Robust Control Scheme (RCS) is proposed. A Mixed H ∞ /H 2 Optimal (MO) controller is used in the outer loop of the RCS, while a Robust LQR (RLQR) optimal controller is used in the inner loop, the nested loop control scheme is described as MORLQR controller. An Optimal Linear Kalman filter-based SRFPLL (OLKF-SRFPLL) is proposed to achieve grid synchronization. To implement islanding detection, a Synchro-Extraction Transform along with an Optimal Support Vector Machine (SET-OSVM) classification is considered. Considering different operational conditions and uncertainty scenarios, the performance and robustness of the proposed AC-DC Microgrid with proposed power-sharing and control in both GCM and IMs and during the transition between both modes is analyzed using MATLAB/SIMULINK.

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“…3 (c). Similarly, other different case studies are verified in [1]. The results reveal that the AC-DC Microgrid's OPMS and MORLQR control scheme are effectively implemented.…”

Section: Simulation Resultsmentioning

confidence: 86%

“…A Microgrid is a small-scale power grid containing loads and distributed generation (DG) units. According to [1] & [2], the Microgrid can reduce localized energy problems and increase the efficiency and dependability of the power system. A DC Microgrid (DCM) has evolved due to increased DC energy consumption.…”

Section: Introductionmentioning

confidence: 99%

Optimal Power Management and Robust Control Scheme for AC-DC Microgrid Involving Renewable and Conventional Sources

Buduma,

Pal,

Kumba

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

“…The fuzzy logic control (FLC) algorithm is beneficial for determining storage device power output because it blends human intelligence with several control objectives [24][25][26][27] . Buduma P. et al 28 use a Takagi-Sugeno FLC to adjust the battery's PI controller and build a load-shedding plan based on the battery's SoC. This is done to improve the DC microgrid system's ability to respond to changes in grid voltage.…”

Section: A Literature Reviewmentioning

confidence: 99%

Power Flow Management in MSSA Optimized Hybrid Fuzzy Integrated 3-DOF FOPID Controller-Based Hybrid Microgrid with Autonomous Bus Voltage Restoration

Patel,

Ghosh,

Ray

2023

Preprint

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In the field of electricity generation, hybrid microgrids (HMGs) become crucial. A HMG has been taken in this paper which consists of renewables like solar, wind, and battery storage system along with ac and dc load. An HMG system needs a battery storage system to reduce power fluctuations from unreliable renewable energy sources (RESs). To connect a battery to the dc bus, a dc-dc bi-directional converter was employed. The control technique of the dc-dc bi-directional converter is consisting of two control loops which are the voltage-controlled loop and the current-controlled loop. A hybrid fuzzy integrated three-degrees-of-freedom fractional-order proportional-integral-derivative (HFI 3-DOF FOPID) controller is proposed in this study to stabilise the voltage on the dc bus and maintain a constant power supply in an HMG. A modified salp swarm algorithm (MSSA) is used here to optimise the controller parameters of the proposed HFI 3-DOF FOPID controller. This paper considers a HMG transfer function model.. The time-domain analysis, stability, and robustness tests are included in this work to confer the efficacy of the proposed MSSA optimized HFI 3-DOF FOPID controller. MATLAB/Simulink has been used to study the performance of the system using the aforementioned controllers. The real-time (Opal RT) studies are also performed on the power management between renewable resources like PV, wind, and battery energy storage to prove the efficacy of the proposed MSSA optimized HFI 3-DOF FOPID controller.

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Robust Power Management and Control for Hybrid AC-DC Microgrid

Cited by 2 publications

References 18 publications

Optimal Power Management and Robust Control Scheme for AC-DC Microgrid Involving Renewable and Conventional Sources

Optimal Power Management and Robust Control Scheme for AC-DC Microgrid Involving Renewable and Conventional Sources

Power Flow Management in MSSA Optimized Hybrid Fuzzy Integrated 3-DOF FOPID Controller-Based Hybrid Microgrid with Autonomous Bus Voltage Restoration

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Robust Power Management and Control for Hybrid AC-DC Microgrid

Cited by 2 publications

References 18 publications

Optimal Power Management and Robust Control Scheme for AC-DC Microgrid Involving Renewable and Conventional Sources

Optimal Power Management and Robust Control Scheme for AC-DC Microgrid Involving Renewable and Conventional Sources

­­­Power Flow Management in MSSA Optimized Hybrid Fuzzy Integrated 3-DOF FOPID Controller-Based Hybrid Microgrid with Autonomous Bus Voltage Restoration

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Power Flow Management in MSSA Optimized Hybrid Fuzzy Integrated 3-DOF FOPID Controller-Based Hybrid Microgrid with Autonomous Bus Voltage Restoration