Relevant bibliographies by topics / Islanded microgrid, droop control, optimal power flow

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Islanded microgrid, droop control, optimal power flow'

Author: Grafiati
Published: 9 March 2023
Last updated: 10 March 2023

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Journal articles on the topic "Islanded microgrid, droop control, optimal power flow"

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Bangar Raju, L., and K. Subba Rao. "Integration of DERs for Optimal Sharing of Power in Grid Connected Mode as Well as Islanded Mode." International Journal of Engineering & Technology 7, no. 3.12 (2018): 1118. http://dx.doi.org/10.14419/ijet.v7i3.12.17772.

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The Microgrid consists of distributed energy resources, DERs(distributed generators - DGs) and distributed storages - DSs), loads, PCC, energy management controllers etc., which are required for effective, efficient, reliable and seamless operation of microgrid in both grid connected mode and islanded mode. The heart of the microgrid is the integration part of the DERs with energy management controllers. Out of the methods available, hierarchical method of integrating DERs is selected in this paper. The method is based on the principle of hybrid particle swarm optimization (PSO) which takes in
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Kreishan, Maen Z., and Ahmed F. Zobaa. "Mixed-Integer Distributed Ant Colony Optimization of Dump Load Allocation with Improved Islanded Microgrid Load Flow." Energies 16, no. 1 (2022): 213. http://dx.doi.org/10.3390/en16010213.

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Dump load (DL) utilization at low demand hours in highly penetrated islanded microgrid is of great importance to offer voltage and frequency regulation. Additionally, load flow (LF) convergence is vital to optimize the working states of the DL allocation problem. Hence, more analysis is necessary to highlight the significance of DL in power regulation while observing the influence of LF on solution accuracy. This article proposes two LF techniques derived from backward/forward sweep (BFS), viz., general BFS (GBFS) and improved special BFS (SBFS-II). The latter is based on global voltage shared
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T.T Tran, Quynh, Maria Luisa Di Silvestre, Eleonora Riva Sanseverino, Gaetano Zizzo, and Thanh Pham. "Driven Primary Regulation for Minimum Power Losses Operation in Islanded Microgrids." Energies 11, no. 11 (2018): 2890. http://dx.doi.org/10.3390/en11112890.

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The paper proposes an improved primary regulation method for inverter-interfaced generating units in islanded microgrids. The considered approach employs an off-line minimum losses optimal power flow (OPF) to devise the primary frequency regulation curve’s set-points while satisfying the power balance, frequency and current constraints. In this way, generators will reach an optimized operating point corresponding to a given and unique power flow distribution presenting the minimum power losses. The proposed approach can be particularly interesting for diesel-based islanded microgrids that face
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Diep-Thanh, Thang, Quang Nguyen-Phung, and Huy Nguyen-Duc. "Stochastic control for optimal power flow in islanded microgrid." International Journal of Electrical and Computer Engineering (IJECE) 9, no. 2 (2019): 1045. http://dx.doi.org/10.11591/ijece.v9i2.pp1045-1057.

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<p>The problem of optimal power flow (OPF) in an islanded mircrogrid (MG) for hybrid power system is described. Clearly, it deals with a formulation of an analytical control model for OPF. The MG consists of wind turbine generator, photovoltaic generator, and diesel engine generator (DEG), and is in stochastic environment such as load change, wind power fluctuation, and sun irradiation power disturbance. In fact, the DEG fails and is repaired at random times so that the MG can significantly influence the power flow, and the power flow control faces the main difficulty that how to maintai
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Najafi, Foad, Mohsen Hamzeh, and Matthias Fripp. "Unbalanced Current Sharing Control in Islanded Low Voltage Microgrids." Energies 11, no. 10 (2018): 2776. http://dx.doi.org/10.3390/en11102776.

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This paper reports a new control strategy to improve sharing of unbalanced currents in islanded LV microgrids. This technique provides fast and effective sharing of positive-, negative- and zero-sequence currents, and is the first example of zero-sequence current sharing in the literature. The controllers are designed in the stationary frame. The control structure consists of four loops: (1) the current controller; (2) the voltage controller; (3) the droop controller and the (4) negative and zero sequence current controllers. The output current is considered unknown for the controller and is a
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Jouda, Mohammed Said, and Nihan Kahraman. "Improved Optimal Control of Transient Power Sharing in Microgrid Using H-Infinity Controller with Artificial Bee Colony Algorithm." Energies 15, no. 3 (2022): 1043. http://dx.doi.org/10.3390/en15031043.

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The microgrid has two main steady-state modes: grid-connected mode and islanded mode. The microgrid needs a high-performance controller to reduce the overshoot value that affects the efficiency of the network. However, the high voltage value causes the inverter to stop. Thus, an improved power-sharing response to the transfer between these two modes must be insured. More important points to study in a microgrid are the current sharing and power (active or reactive) sharing, besides the match percentage of power sharing among parallel inverters and the overshoot of both active and reactive powe
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Abu Bakar, A., E. Pathan, M. K. Khan, et al. "Decentralized Virtual Impedance-based Circulating Current Suppression Control for Islanded Microgrids." Engineering, Technology & Applied Science Research 11, no. 1 (2021): 6734–39. http://dx.doi.org/10.48084/etasr.3895.

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Parallel connected inverters in islanded mode, are getting momentous attention due to their ability to increase the power distribution and reliability of a power system. When there are different ratings of Distributed Generation (DG) units, they will operate in parallel connection due to different output voltages, impedance mismatch, or different phase that can cause current to flow between DG units. The magnitude of this circulating current sometimes can be very large and damage the DG inverters and also cause power losses that affect power-sharing accuracy, power quality, and the efficiency
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Jumani, Touqeer, Mohd Mustafa, Madihah Md. Rasid, Waqas Anjum, and Sara Ayub. "Salp Swarm Optimization Algorithm-Based Controller for Dynamic Response and Power Quality Enhancement of an Islanded Microgrid." Processes 7, no. 11 (2019): 840. http://dx.doi.org/10.3390/pr7110840.

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The islanded mode of the microgrid (MG) operation faces more power quality challenges as compared to grid-tied mode. Unlike the grid-tied MG operation, where the voltage magnitude and frequency of the power system are regulated by the utility grid, islanded mode does not share any connection with the utility grid. Hence, a proper control architecture of islanded MG is essential to control the voltage and frequency, including the power quality and optimal transient response during different operating conditions. Therefore, this study proposes an intelligent and robust controller for islanded MG
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Jumani, Touqeer Ahmed, Mohd Wazir Mustafa, Madihah Md Rasid, Nayyar Hussain Mirjat, Zohaib Hussain Leghari, and M. Salman Saeed. "Optimal Voltage and Frequency Control of an Islanded Microgrid using Grasshopper Optimization Algorithm." Energies 11, no. 11 (2018): 3191. http://dx.doi.org/10.3390/en11113191.

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Due to the lack of inertia and uncertainty in the selection of optimal Proportional Integral (PI) controller gains, the voltage and frequency variations are higher in the islanded mode of the operation of a Microgrid (MG) compared to the grid-connected mode. This study, as such, develops an optimal control strategy for the voltage and frequency regulation of Photovoltaic (PV) based MG systems operating in islanding mode using Grasshopper Optimization Algorithm (GOA). The intelligence of the GOA is utilized to optimize the PI controller parameters. This ensures an enhanced dynamic response and
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Kreishan, Maen Z., and Ahmed F. Zobaa. "Optimal Allocation and Operation of Droop-Controlled Islanded Microgrids: A Review." Energies 14, no. 15 (2021): 4653. http://dx.doi.org/10.3390/en14154653.

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This review paper provides a critical interpretation and analysis of almost 150 dedicated optimization research papers in the field of droop-controlled islanded microgrids. The significance of optimal microgrid allocation and operation studies comes from their importance for further deployment of renewable energy, reliable and stable autonomous operation on a larger scale, and the electrification of rural and isolated communities. Additionally, a comprehensive overview of islanded microgrids in terms of structure, type, and hierarchical control strategy was presented. Furthermore, a larger emp
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Dissertations / Theses on the topic "Islanded microgrid, droop control, optimal power flow"

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Chang, Chin-Yao. "Hierarchical Control of Inverter-Based Microgrids." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1471815065.

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Book chapters on the topic "Islanded microgrid, droop control, optimal power flow"

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A. Ebrahim, Mohamed, Reham M. Abdel Fattah, Ebtisam M. Saied, Samir M. Abdel Maksoud, and Hisham El Khashab. "Salp Swarm Optimization with Self-Adaptive Mechanism for Optimal Droop Control Design." In Electric Power Conversion and Micro-Grids. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.97229.

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The collaboration of the various distributed generation (DG) units is required to meet the increasing electricity demand. To run parallel-connected inverters for microgrid load sharing, several control strategies have been developed. Among these methods, the droop control method was widely accepted in the research community due to the lack of important communication links between parallel-connected inverters to control the DG units within a microgrid. To help to solve the power-sharing process, keep to frequency and voltage constrained limits in islanded mode microgrid system. The parameter values must therefore be chosen accurately by using the optimization technique. Optimization techniques are a hot topic of researchers; hence This paper discusses the microgrid droop controller during islanding using the salp swarm inspired algorithm (SSIA). To obtain a better fine microgrid output reaction during islanding, SSIA-based droop control is used to optimally determine the PI gain and the coefficients of the prolapse control. The results of the simulation show that the SSIA-based droop control can control the power quality of the microgrid by ensuring that the keep to frequency and voltage constrained limits and deviation and proper power-sharing occurs during the microgrid island mode during a load change.
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Conference papers on the topic "Islanded microgrid, droop control, optimal power flow"

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Liu, Daichen, Cuo Zhang, and ZhaoYang Dong. "Stochastic Optimal Power Flow for Islanded Microgrids Considering Droop Control." In 2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia). IEEE, 2019. http://dx.doi.org/10.1109/isgt-asia.2019.8881100.

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A. Chagas, Elton, Anselmo B. Rodrigues, and Maria G. Silva. "Minimization of Risks of Voltage and Frequency Violations in Islanded Microgrids using Robust Probabilistic Optimal Power Flow." In Simpósio Brasileiro de Sistemas Elétricos - SBSE2020. sbabra, 2020. http://dx.doi.org/10.48011/sbse.v1i1.2386.

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The main aim of this paper is to propose a robust probabilistic optimal power flow model to determine the droop control parameters for the Distributed Generators (DG) of a islanded microgrid. The term robust is related to the droop control parameters being immune to uncertainties associated with: load forecast errors, DG outages and variability of power output in renewable DG. This optimization problem is solved by an improved gravitational search algorithm (GSA). The test results demonstrated that the proposed method can achieve significant reductions in the load curtailments due to frequency
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