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An accurate modeling method for electric parameters prediction of CSR (Contactless Slip Ring) is proposed in this paper. Parameters of CSR can be conveniently obtained before simulation and prototype design. In order to increase the accuracy of the predicted electric parameters, the main flux are corrected by taking the partially coupled flux into account, and the leakage inductance is obtained by...
This paper presents comprehensive validation tests of a recent qd0-frame core-loss model of three-phase induction machines at different load conditions. The machine is run at different frequencies/speeds and flux levels. These tests reinforce the model at different operating conditions before further model-based analysis and control design. Moreover, to properly use the model, a series of model parameter...
The difficulty of modeling a resonant converter is the fact that, unlike a pulse-width-modulation (PWM) converter, an average concept doesn't work. The only successful equivalent circuit model, proposed by E. Yang, is based on fundamental approximation and harmonic balance theory. However, it is conceptually hard to understand because of an unidentified “equilibrium state.” A resonant converter was...
High-speed models of facilities with AC generators and modular multilevel converters have been developed by using the methodology of system modeling by interconnected subsystems. The method of facility separation on parts by introducing in circuits virtual voltage sources has been implemented. Analysis of operation modes of considered systems was completed. Fast response of models was validated.
This paper presents a study of sensitivity of the equivalent circuit of ZnO surge arresters based on the model proposed by the IEEE. The main contribution of the proposed paper consists in some modifications in the fitting procedure of the equivalent LRC circuit of the surge arrester in order to improve the accuracy during electromagnetic transient simulations in power systems. The proposed equivalent...
RF CMOS technology provides a platform for the production of analog, digital and RF circuits on a single chip for futuristic high-level integration. This facilitates the need for a robust compact model for RF FinFETs to study the circuits in a precise and convenient way. In this paper, we have characterized 14-nm N-channel bulk FinFETs by performing two-port S-parameter measurements. Further, BSIM-CMG...
Modelling, sizing and control of a Hybrid Energy Storage System (HESS) made up of Batteries (B) and Supercapacitors (S) is presented in this paper. The HESS is characterized by an integrated topology through a Three-level Neutral-Point Clamped Converter (NPC), leading to a highly-integrated electric propulsion system. Accurate modelling of both B and S are considered at first, although some simplifications...
Energy management system (EMS) using renewable energy such as sunlight is expected to build a low-carbon society. In this paper, we report the modeling of EMS components using SPICE (simulation program with integrated circuit emphasis) and the estimation of the energy self-sufficiency rate by EMS simulation. We develop the simulation models of photovoltaic (PV) power generation system, storage battery...
Accurately modeling the dynamic behavior of a lithium-ion battery is one of the major themes for researches on state of charge (SOC) estimation. A large number of experiments were performed at different discharge rates and operating temperatures for three compact lithium-ion batteries aiming at determining the relationship of open circuit voltage (OCV) with SOC. The curve of OCV-SOC is approximated...
Present and future link (SerDes) design requires a strong and effective coupling between high-speed circuit design, optimization, and digital communications, its problems are different that new solutions are required. This paper proposed an analytical wireline channel model for path loss prediction for effective electronic circuits and systems design. Proposed model closely match experimental data...
SPlCE-compatible modeling with generalized lumped devices is used to simulate the spatial and time dependence of photogenerated carriers with standard circuit simulators. Equivalent voltages and currents are used in place of minority carrier excess concentrations and minority carrier currents respectively. The initial light-induced excess carrier concentration in silicon is accounted by means of distributed...
In order to research the conducted EMI modeling of the inverter circuit, in this paper the high frequency models of power semiconductor devices, passive components, and extractions of parasitic parameters of passive components, printed circuit board (PCB) are presented. The simulation model of conducted EMI of the inverter circuit is proposed by using the Saber software and its simulation waveform...
The impact of conformal coating penetration on the solder joints' thermal fatigue reliability in QFNs was studied using computational modeling techniques. 3D finite element models were developed with consideration of realistic solder joint shape and the actual coating profile. Thermal mechanical simulations were carried out for three cycles under accelerated thermal test conditions of −25 to 100°C,...
A new direct extraction method for the determination of the parasitic capacitances of multi-finger MOSFETs is presented in this paper. This method is based on a general scalable small signal equivalent circuit model under pinch-off bias condition. The main advantage of this approach is that all parasitic capacitances including Cpg, Cpd and Cpgd can be extracted simultaneously by using MOSFETs of different...
The paper includes results of the theoretical research and practical application of soft-processors testing, in particular Nios compiler of Altera SoPC Builder core. The model is based on Model-Based Testing concept. ForSyDe programming formal language is used as instrument for the development of soft-processor reference program model. Stages of model development with the follow-up analysis and comparison...
This paper proposes a methodology to model an electronic board according to a bottom-up approach. This method is applied to build the model of a synchronous buck DC-DC converter board for conducted emission prediction purpose. The different steps to select the model terminals and the construction of the component and PCB interconnect models are described.
Modeling the terminal behavior of power system components in transient condition is of great necessity for systemlevel simulations of future DC grids. One vital component in DC grids are power electronic converters. Therefore, efficient models of power electronic converters, which model their terminal behavior, are needed for transient system-level simulations. In this paper, an approach for eliminating...
This paper presents a compact transistor model for circuit design in a flexible amorphous indium gallium zinc oxide (a-IGZO) thin-film transistor (TFT) technology. The presented model is technology specific and builds upon the Verilog-A Rensselaer Polytechnic Institute amorphous silicon TFT (RPI-aTFT) model. On the basis of extensive device characterization, we introduce appropriate new equations...
This paper presents a toolbox for the automation of the electrical characterization of CMOS transistors. The developed software provides a user-friendly interface to carry out different tests to evaluate time-zero (i.e., process) and time-dependent variability in CMOS devices. Also, the software incorporates a post-processing capability that allows users to visualize the data. Moreover, without loss...
Random Telegraph Noise (RTN) effects are investigated in 65nm SRAM cells by using a new characterization method that provides a significant measurement time reduction. The variability induced in commercial SRAM cells is derived by applying statistical and physics based Montecarlo modeling to the experimental data. Results show that RTN can have a significant impact on the memory write operations and...
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