this paper presents a systematic, scalable, small-signal modelling approach for microgrids. Each subsystem is modelled separately and then all are interfaced using the Simulink control-Design Toolbox. the main advanta...
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this paper presents a systematic, scalable, small-signal modelling approach for microgrids. Each subsystem is modelled separately and then all are interfaced using the Simulink control-Design Toolbox. the main advantage is practicality, as analytical models of whole microgrids may be derived systematically and easily. the application to a subsystem-level (control design) and system-level analysis (microgrid stability) is shown, as well as experimental results that validate the correct operation of the microgrid.
the predicted operation and performance of a 6.65 kW PV system assumed to be located in Galway, Ireland to charge 4 electric vehicles (EVs) is modeled. the performance of AC and DC distribution systems are compared. M...
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the predicted operation and performance of a 6.65 kW PV system assumed to be located in Galway, Ireland to charge 4 electric vehicles (EVs) is modeled. the performance of AC and DC distribution systems are compared. Models account for the variable efficiencies of power converter blocks as power levels vary. A control strategy is developed to choose when/how many EVs charge based on available PV power thereby maximizing efficiency and solar energy usage in the EVs. It is shown that for an EV user with a home charge point and a 100 km daily return commute, a ~90% SOC can be supported by the system during the summer months. It is also shown that the DC system is 4.67% more efficient than the AC system over the course of a year.
In this article, the recently developed RotaSVM is used for accurate prediction of binding peptides to Human Leukocyte Antigens class II (HLA class II) proteins. the HLA II - peptide complexes are generated in the ant...
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ISBN:
(纸本)9789897580123
In this article, the recently developed RotaSVM is used for accurate prediction of binding peptides to Human Leukocyte Antigens class II (HLA class II) proteins. the HLA II - peptide complexes are generated in the antigen presenting cells (APC) and transported to the cell membrane to elicit an immune response via T-cell activation. the understanding of HLA class II protein-peptide binding interaction facilitates the design of peptide-based vaccine, where the high rate of polymorphisms in HLA class II molecules poses a big challenge. To determine the binding activity of 636 non-redundant peptides, a set of 27 HLA class II proteins are considered in the present study. the prediction of HLA class II - peptide binding is carried out by an ensemble classifier called RotaSVM. In RotaSVM, the feature selection scheme generates bootstrap samples that are further used to create a diverse set of features using Principal Component Analysis. thereafter, Support Vector Machines are trained withthese bootstrap samples withthe integration of their original feature values. the effectiveness of the RotaSVM for HLA class II protein-peptide binding prediction is demonstrated in comparison with other traditional classifiers by evaluating several validity measures withthe visual plot of ROC curves. Finally, Friedman test is conducted to judge the statistical significance of RotaSVM in prediction of peptides binding to HLA class II proteins.
Modular multilevel converter (M2LC), which features modularity, scalability, reduced voltage rating of the switches and redundant switching operations, is becoming popular in medium to high-voltage applications. Circu...
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Modular multilevel converter (M2LC), which features modularity, scalability, reduced voltage rating of the switches and redundant switching operations, is becoming popular in medium to high-voltage applications. Circulating current, which is an inherent feature of the M2LC topology, increases boththe converter losses and complexity of the control scheme. Recently, M2LC with voltage correcting modules (M2LC-VCM) is proposed as a method to minimize the circulating current. A mathematical model of the M2LC-VCM that is based on the sum of all the capacitor voltages in an arm is derived in the paper. the model can be used either as a tool for investigating the behaviour of the M2LC-VCM or designing the physical system. Simulated results of a three-phase five-level 2-MVA grid connected M2LC are presented with discussion to demonstrate the viability of the mathematical model.
In this work, we address modelling and control of discrete event systems modelled by P-time event graphs by means of discrete implicit linear systems. From this modelling, a closed loop control problem is expressed fo...
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Human standing motion shows long-term perturbation. the present research considers this perturbation is a limit-cycle solution of nonlinear PID control including nonlinear proportional control and integral control, an...
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ISBN:
(纸本)9781632660251
Human standing motion shows long-term perturbation. the present research considers this perturbation is a limit-cycle solution of nonlinear PID control including nonlinear proportional control and integral control, and shows the existence of such controls in human experiment.
Consequence reasoning is a major element for operation support system to assess the plant situations. the purpose of this paper is to elaborate how Multilevel Flow Models can be used to reason about consequences of di...
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this paper presents the design and implementation of a real-time system for the temperature monitoring and control in an infant incubator using a PIC16F877 microcontroller. the implementation of a set of control appro...
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In order to implement brain-computer interfaces (BCI's), the individual must be able to volitionally control brain function: a skill that can only be achieved through specialized training. Currently, this training...
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CubeSats relying solely on small microcontroller have very limited computational resources, which restricts any usage of sophisticated control algorithms. Most existing attitude control algorithms require full state i...
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