Droop coefficient correction control for power sharing and voltage restoration in hierarchical controlled DC microgrids

Han, Yi; Ning, Xing; Li, Luqiao; Yang, Ping; Blaabjerg, Frede

doi:10.1016/j.ijepes.2021.107277

Cited by 29 publications

(8 citation statements)

References 41 publications

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“…The system delineates a well-defined structure of control tiers, including primary, secondary, and tertiary control, in order to promote stability, reliability, and efficient allocation of resources while accommodating diverse energy requirements [128], [129]. Simultaneous voltage regulation and powersharing can be achieved with hierarchical control [130]. The reference [131] presents a hierarchical control strategy for bipolar DC microgrids, with a specific emphasis on voltage balancing and power management.…”

Section: Combined Voltage Control and Power Managementmentioning

confidence: 99%

A Critical Review on DC Microgrids Voltage Control and Power Management

Al-Ismail

2024

IEEE Access

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Direct current (DC) microgrids are becoming increasingly important due to a number of causes, including the widespread use of DC loads, the integration of solar photovoltaic (PV) and energy storage devices (ESDs), and the absence of frequency and reactive power control issues. The control of DC bus voltage, power management, effective power split among the ESDs, and state of charge (SoC) restorations are important in a DC microgrid. However, DC bus voltage control and power management are difficult since the microgrids connect several distributed generators (DGs), loads, utility grids, and ESDs to the DC bus using power electronic converters. It is imperative to properly control the DC bus voltage and manage power among the sources and loads in order to maintain the stability and reliability of DC microgrids. DC microgrids can be controlled by employing centralized, decentralized, distributed, multi-level, and hierarchical control systems to ensure safe and secure operation. Besides, advanced control techniques, such as nonlinear, robust, model predictive, artificial intelligence, and many others, are employed. This article critically reviews two main aspects of DC microgrids: voltage control and power management. The challenges and opportunities for voltage control and power management in DC

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Section: Combined Voltage Control and Power Managementmentioning

confidence: 99%

A Critical Review on DC Microgrids Voltage Control and Power Management

Al-Ismail

2024

IEEE Access

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“…To address these issues, several researchers have investigated the AC and DC microgrid in the literature [1][2][3] for the reliable operation of the centralized network. Nonetheless, the DC microgrid has several advantages [2][3][4][5] over the AC microgrid such as low cost, low complexity, high reliability, energy efficient, etc. Several configurations of the power electronic converters are described in [6][7][8] for an application of the DC microgrid.…”

Section: Introductionmentioning

confidence: 99%

Resilient operation of DC microgrid against FDI attack: A GRU based framework

Shah

Zhao

2023

International Journal of Electrical Power & Energy Systems

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“…In recent years, various optimal and robust control strategies have been proposed for DC microgrid to improve the trajectory tracking and stabilization of its converter part [30][31][32]. A number of nonlinear control strategies have been reported to manage and control the energy systems which are based on integer order [33][34][35]. Fractional order controller can provide high-degree of freedom model for systems with more flexibility than integer order controller.…”

Section: Introductionmentioning

confidence: 99%

Optimal Model Predictive based on Super-Twisting Fractional Order Sliding Mode Control to Regulate DC-link Voltage of DC Microgrid

Amiri

Farzinfar²,

Sadeghi³

et al. 2022

JER is an international, peer-reviewed journal that publishes f

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This paper aims to essentially regulate the DC-link voltage of DC microgrid during the disturbance conditions in power system. Hence, a novel Optimal Model Predictive Super-Twisting Fractional Order Sliding Mode Control (OMP-STFOSMC) is proposed for three-phase AC-DC converter which can effectively enhance the stability and dynamic performance of microgrid. The conventional model-predictive controllers have severely imposed the dynamic stability which leads to high overshoot, undershoot and settling-time. The sliding mode controller can be replaced instead of these conventional controllers to appropriately triumph over this problem. A main drawback of conventional sliding mode controller is related to its high frequency chattering in the control signal which can affect the system and doesn’t make it satisfactory and feasible for real applications. The proposed OMP-STFOSMC can effectively enhance the control tracking performance and reduce the high frequency chattering problem. The Stochastic Fractal Search (SFS) algorithm due to its high exploration and good evasion of local optima is used to optimally tune the controller parameters. Different operation conditions are considered to evaluate the dynamic and chattering-free performance of proposed controller. As to the simulation results with comparative analysis, it is observed that the proposed OMP-STFOSMC offers better dynamic stability characteristics.

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Droop coefficient correction control for power sharing and voltage restoration in hierarchical controlled DC microgrids

Cited by 29 publications

References 41 publications

A Critical Review on DC Microgrids Voltage Control and Power Management

A Critical Review on DC Microgrids Voltage Control and Power Management

Resilient operation of DC microgrid against FDI attack: A GRU based framework

Optimal Model Predictive based on Super-Twisting Fractional Order Sliding Mode Control to Regulate DC-link Voltage of DC Microgrid

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