Overview of Fault Ride-Through Requirements for Photovoltaic Grid Integration, Design and Grid Code Compliance

Buraimoh, Elutunji; Davidson, Innocent E.

doi:10.1109/icrera49962.2020.9242914

Cited by 15 publications

(9 citation statements)

References 29 publications

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“…Increased penetration of wind power produces a potentially negative impact on the stability of existing power system [67] when a grid fault occurs. It causes a voltage dip, and the detection of such causes the disconnection of the connected wind generator in order to shield the plant from the detrimental effects of voltage drop [68]. However, this disconnection also creates an adverse influence on the remaining generation systems which can be detrimental to the overall system stability.…”

Section: Grid-connected Systemsmentioning

confidence: 99%

Wind Energy Harvesting and Conversion Systems: A Technical Review

et al. 2022

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Wind energy harvesting for electricity generation has a significant role in overcoming the challenges involved with climate change and the energy resource implications involved with population growth and political unrest. Indeed, there has been significant growth in wind energy capacity worldwide with turbine capacity growing significantly over the last two decades. This confidence is echoed in the wind power market and global wind energy statistics. However, wind energy capture and utilisation has always been challenging. Appreciation of the wind as a resource makes for difficulties in modelling and the sensitivities of how the wind resource maps to energy production results in an energy harvesting opportunity. An opportunity that is dependent on different system parameters, namely the wind as a resource, technology and system synergies in realizing an optimal wind energy harvest. This paper presents a thorough review of the state of the art concerning the realization of optimal wind energy harvesting and utilisation. The wind energy resource and, more specifically, the influence of wind speed and wind energy resource forecasting are considered in conjunction with technological considerations and how system optimization can realise more effective operational efficiencies. Moreover, non-technological issues affecting wind energy harvesting are also considered. These include standards and regulatory implications with higher levels of grid integration and higher system non-synchronous penetration (SNSP). The review concludes that hybrid forecasting techniques enable a more accurate and predictable resource appreciation and that a hybrid power system that employs a multi-objective optimization approach is most suitable in achieving an optimal configuration for maximum energy harvesting.

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Section: Grid-connected Systemsmentioning

confidence: 99%

Wind Energy Harvesting and Conversion Systems: A Technical Review

et al. 2022

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“…The inverter-based microgrids are expected to operate near the unity power factor at maximum power. Hence, there is minimal or no reactive power injection until voltage sag, which implies that i * q = 0 at 1 per unit grid voltage The grid codes also require a sufficiently minimal reactive current injection for static voltage support and allow for power factor compensation in a steadystate (Buraimoh and Davidson, 2020). For instance, a minimum reactive current I q is injected into the grid once the grid voltage level decreases to 90% of the nominal voltage.…”

Section: Proposed Fast Dsc For Lvrt Secondary Controlmentioning

confidence: 99%

Decentralized Fast Delayed Signal Cancelation Secondary Control for Low Voltage Ride-Through Application in Grid Supporting Grid Feeding Microgrid

2021

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In this study, a distributed secondary control is proposed alongside the conventional primary control to form a hierarchical control scheme for the Low Voltage Ride-Through (LVRT) control and applications in the inverter-based microgrid. The secondary control utilizes a fast Delayed Signal Cancelation (DSC) algorithm for the secondary control loop to control the reactive and active power reference by controlling the sequences generated. The microgrid consists of four Distributed Energy Resources (DER) sources interfaced to the grid through interfacing inverters coordinated by droop for effective power-sharing according to capacities. The droop also allows for grid supporting application for microgrid’s participation in frequency and voltage regulation in the main grid. The proposed decentralized fast DSC performance is evaluated with centralized secondary and traditional primary control using OPAL-RT Lab computation and MATLAB/SIMULINK graphical user interface for offline simulations and real-time digital simulator verification. This study presents and discusses the results.

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“…As a result, some developed countries have amended their respective grid codes to improve RES efficiency. In 2004In , 2006In , and 2008, Spain, Germany, and Denmark were among the first countries that issued the FRT requirements for DERs connected to the grid [13,14]. The Spanish, Danish, and Chinese code requirements are displayed in Figure 1 accordingly [9,10].…”

Section: Introductionmentioning

confidence: 99%

Modeling of Double Stage Photovoltaic Inverter System with Fast Delayed Signal Cancellation for Fault Ride-Through Control Application in Microgrids

Buraimoh

Davidson

2022

Energies

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This research presents a secondary control for a grid-supporting microgrid with photovoltaics sources to guarantee grid code compliance and ancillary services. The secondary control accomplishes the fault ride-through, which implements a delayed signal cancellation (DSC) algorithm for negative sequence detection. Without mode switching, the proposed control strategy meets grid code requirements and ensures voltage regulation at the secondary level, which is active and more salient throughout the transient period of host grid disturbances. This control also ensures a constant supply of the microgrid’s sensitive local load while adhering to grid code requirements. Similarly, active power injection into the main grid is limited by progressively altering the MPPT operating point dependent on the depth of voltage sag to optimize reactive power injection to sustain grid voltage sag. The recommended secondary control is triggered by utilizing the DSC process’s detection algorithm to identify the occurrence of a fault in a tiny fraction of a half-cycle in a grid fault. Consequently, while satisfying microgrid load needs, the devised technique guaranteed that increases in DC-link voltage and AC grid current were controlled. MATLAB Simscape ElectricalTM and OPAL-RT Lab are used to do time-domain simulations of the model using the recommended secondary control systems.

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Overview of Fault Ride-Through Requirements for Photovoltaic Grid Integration, Design and Grid Code Compliance

Cited by 15 publications

References 29 publications

Wind Energy Harvesting and Conversion Systems: A Technical Review

Wind Energy Harvesting and Conversion Systems: A Technical Review

Decentralized Fast Delayed Signal Cancelation Secondary Control for Low Voltage Ride-Through Application in Grid Supporting Grid Feeding Microgrid

Modeling of Double Stage Photovoltaic Inverter System with Fast Delayed Signal Cancellation for Fault Ride-Through Control Application in Microgrids

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