Optimal design of hybrid DG systems for microgrid reliability enhancement

Yahaya, Abass Afolabi; Al-Muhaini, Mohammad; Heydt, G.T.

doi:10.1049/iet-gtd.2019.0277

Cited by 19 publications

(14 citation statements)

References 18 publications

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“…The circuit diagram for a multi-level inverter is shown in Figure 9: LC-filter is being used to get the final form that is close to sinusoidal waveform. The values of L and C have to be selected based on (11) and (12), respectively [14]:…”

Section: Invertersmentioning

confidence: 99%

“…Power management in the hybrid AC/DC Microgrid is focused on droop and power flow regulation. Droop control can be used for both DC and AC sub-grids or both [11][12][13][14][15]. If the latter approach is used, an interlinking between the two sub-grids is mainly used to handle the case when any sub-grid failure occurs due to over-stress, keeping individual source variations as small as possible [9].…”

Section: Introductionmentioning

confidence: 99%

“…In [13], wireless power management with batteries, load variations, and uninterrupted supply were managed with energy storage devices. Recently, many research works were carried out on the mode of communication in energy management [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

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Modelling, Design and Control of a Standalone Hybrid PV-Wind Micro-Grid System

Al-Quraan

Al-Qaisi

2021

Energies

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The problem of electrical power delivery is a common problem, especially in remote areas where electrical networks are difficult to reach. One of the ways that is used to overcome this problem is the use of networks separated from the electrical system through which it is possible to supply electrical energy to remote areas. These networks are called standalone microgrid systems. In this paper, a standalone micro-grid system consisting of a Photovoltaic (PV) and Wind Energy Conversion System (WECS) based Permanent Magnet Synchronous Generator (PMSG) is being designed and controlled. Fuzzy logic-based Maximum Power Point Tracking (MPPT) is being applied to a boost converter to control and extract the maximum power available for the PV system. The control system is designed to deliver the required energy to a specific load, in all scenarios. The excess energy generated by the PV panel is used to charge the batteries when the energy generated by the PV panel exceeds the energy required by the load. When the electricity generated by the PV panels is insufficient to meet the load’s demands, the extra power is extracted from the charged batteries. In addition, the controller protects the battery banks in all conditions, including normal, overcharging, and overdischarging conditions. The controller should handle each case correctly. Under normal operation conditions (20% < State of Charge (SOC) < 80%), the controller functions as expected, regardless of the battery’s state of charge. When the SOC reaches 80%, a specific command is delivered, which shuts off the PV panel and the wind turbine. The PV panel and wind turbine cannot be connected until the SOC falls below a safe margin value of 75% in this controller. When the SOC goes below 20%, other commands are sent out to turn off the inverter and disconnect the loads. The electricity to the inverter is turned off until the batteries are charged again to a suitable value.

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Section: Invertersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Modelling, Design and Control of a Standalone Hybrid PV-Wind Micro-Grid System

Al-Quraan

Al-Qaisi

2021

Energies

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“…Multi‐criterion decision making (MCDM) and normalised weighted constrained multi‐objective (NWCMO) algorithms are used for optimal sizing of components in standalone HESs in [142, 143], respectively. In [144], a variety of components (DG, PV, WT, and BSS) are optimised based on three indices for reliability and the system cost.…”

Section: Multi‐objective Optimisation Of Hybrid Standalone/grid‐connementioning

confidence: 99%

Review on the state‐of‐the‐art multi‐objective optimisation of hybrid standalone/grid‐connected energy systems

Khezri

Mahmoudi

2020

IET Generation, Transmission & Distribution

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“…In the deregulated electric market, microgrids (Gs) have emerged as a promising decentralised power system that permits the integration of small-distributed generators (DG) and provides reliability to the overall system [1,2]. Although the G can be connected to the main grid, the most challenging scenario is when it is disconnected from the mains.…”

Section: Introductionmentioning

confidence: 99%