Search Results - "Fletcher, John"

The Equivalent Models of Grid-Forming Inverters in the Sequence Domain for the Steady-State Analysis of Power Systems by Mahamedi, Behnam, Fletcher, John E.

“…The modeling of electric sources in the sequence domain helps understand their response during faults when they are integrated into power systems. Since the…”
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Secondary Ion Mass Spectrometry: Characterizing Complex Samples in Two and Three Dimensions by Fletcher, John S, Vickerman, John C

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Short-Circuit and Ground Fault Analyses and Location in VSC-Based DC Network Cables by Jin Yang, Fletcher, J. E., O'Reilly, J.

“…The application of high-power voltage-source converters (VSCs) to multiterminal dc networks is attracting research interest. The development of VSC-based dc…”
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Sequence-Based Control Strategy With Current Limiting for the Fault Ride-Through of Inverter-Interfaced Distributed Generators by Mahamedi, Behnam, Eskandari, Mohsen, Fletcher, John E., Zhu, Jianguo

“…Three-phase three-leg inverters represent the majority of inverters that are integrated into low voltage power grids. They can develop positiveand…”
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Lipid Diversity in Cells and Tissue Using Imaging SIMS by Sämfors, Sanna, Fletcher, John S

“…Lipids are an important class of biomolecules with many roles within cells and tissue. As targets for study, they present several challenges. They are…”
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Simplified Piecewise Model of Line-Start Permanent Magnet Linear Synchronous Motors by Di, Jun, Fletcher, John E., Li, Weili

“…This article investigates the longitudinal end effect of the line-start permanent magnet linear synchronous motor (line-start PMLSM), where conductive ladder…”
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Dispatchable Virtual Oscillator Control for Single-Phase Islanded Inverters: Analysis and Experiments by Ali, Muhammad, Nurdin, Hendra I., Fletcher, John E.

“…The increased penetration of renewable energy sources into the power system has resulted in a need for dispatchable control for the inverters. Dispatchable…”
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Multi-Timescale Model Predictive Control of Battery Energy Storage System Using Conic Relaxation in Smart Distribution Grids by Zafar, Raheel, Ravishankar, Jayashri, Fletcher, John E., Pota, Hemanshu R.

“…This paper proposes a multi-timescale volt/var optimization for the optimal dispatch of battery energy storage system in smart distribution grids. It aims to…”
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A Controller Improving Photovoltaic Voltage Regulation in the Single-Stage Single-Phase Inverter by Callegaro, Leonardo, Rojas, Christian, Ciobotaru, Mihai, Fletcher, John

“…While substantial research covers current control and synchronization of grid-connected photovoltaic (PV) inverters, issues concerning control of the PV input…”
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Feedback Linearization Control in Photovoltaic Module Integrated Converters by Callegaro, Leonardo, Ciobotaru, Mihai, Pagano, Daniel J., Fletcher, John E.

“…The strive to increase the energy yield of photovoltaic (PV) power systems has made PV module integrated dc-dc converters (dc-MICs) a reality of modern PV…”
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A Series-Dynamic-Resistor-Based Converter Protection Scheme for Doubly-Fed Induction Generator During Various Fault Conditions by Jin Yang, Fletcher, John E, O'Reilly, John

“…This paper proposes a new converter protection method, primarily based on a series dynamic resistor (SDR) that avoids the doubly-fed induction generator (DFIG)…”
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Brain region‐specific amyloid plaque‐associated myelin lipid loss, APOE deposition and disruption of the myelin sheath in familial Alzheimer’s disease mice by Kaya, Ibrahim, Jennische, Eva, Lange, Stefan, Tarik Baykal, Ahmet, Malmberg, Per, Fletcher, John S.

“…There is emerging evidence that amyloid beta (Aβ) aggregates forming neuritic plaques lead to impairment of the lipid‐rich myelin sheath and glia. In this…”
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On-Tissue Chemical Derivatization of Catecholamines Using 4‑(N‑Methyl)pyridinium Boronic Acid for ToF-SIMS and LDI-ToF Mass Spectrometry Imaging by Kaya, Ibrahim, Brülls, Steffen M, Dunevall, Johan, Jennische, Eva, Lange, Stefan, Mårtensson, Jerker, Ewing, Andrew G, Malmberg, Per, Fletcher, John S

“…The analysis of small polar compounds with ToF-SIMS and MALDI-ToF-MS have been generally hindered by low detection sensitivity, poor ionization efficiency, ion…”
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Quality of life and mental health measurements among patients with type 2 diabetes mellitus: a systematic review by Alzahrani, Owiss, Fletcher, John P, Hitos, Kerry

“…Over the past few decades the benefits of assessing Quality of Life (QoL) and mental health in patients with Type 2 Diabetes Mellitus (T2DM) have steadily…”
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Comparison of Virtual Oscillator and Droop Controlled Islanded Three-Phase Microgrids by Shi, Zhan, Li, Jiacheng, Nurdin, Hendra I., Fletcher, John E.

“…This paper compares transient responses of virtual oscillator control (VOC) to the conventional droop control method, under various inverter terminal voltage…”
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Multiterminal DC Wind Farm Collection Grid Internal Fault Analysis and Protection Design by Jin Yang, Fletcher, J E, O'Reilly, J

“…The multiterminal dc wind farm is a promising topology with a voltage-source inverter (VSI) connection at the onshore grid. Voltage-source converters (VSCs)…”
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Latest applications of 3D ToF-SIMS bio-imaging by Fletcher, John S

“…Time-of-flight secondary ion mass spectrometry (ToF-SIMS) is a rapidly developing technique for the characterization of a wide range of materials. Recently,…”
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Setting-free method for detection of asymmetrical faults during power swings by Mahamedi, Behnam, Fletcher, John E.

“…•The frequency components of p3ϕ(t) can be used as a fault indicator.•p3ϕ(t) oscillates at twice fundamental frequency when an asymmetrical fault…”
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Model Predictive Control for DC-DC Boost Converters With Reduced-Prediction Horizon and Constant Switching Frequency by Cheng, Long, Acuna, Pablo, Aguilera, Ricardo P., Jiang, Jiuchun, Wei, Shaoyuan, Fletcher, John E., Lu, Dylan D. C.

“…The implementation of multistep direct model predictive control (MPC) for dc-dc boost converters overcomes the well-known issue of nonminimum phase behavior…”
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Control of Distributed Photovoltaic Inverters for Frequency Support and System Recovery by DehghaniTafti, Hossein, Konstantinou, Georgios, Fletcher, John, Callegaro, Leonardo, Farivar, Glen, Pou, Josep

“…Replacing conventional synchronous generator-based power plants with inverter-based renewable energy resources results in a reduction of the inertia in power…”
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