Dynamic Analysis Techniques for Capacitors
SSR analysis with dynamic phasor model of thyristor-controlled series capacitor …
In their previous work, the authors have studied the phasor dynamics of thyristor-controlled series capacitors (TCSCs), and derived associated models for studying power swing oscillations in power systems. This paper presents the use of a dynamic phasor model of the TCSC in studies of subsynchronous resonance (SSR). Their earlier dynamic phasor …
Simple Analysis of a Flying Capacitor Converter Voltage Balance Dynamics for …
Voltage balance dynamics analytical research methods reported to date deal mostly with an AC modulation case and are essentially based on a frequency domain analysis using double Fourier transform.
Dynamic analysis of multilayer ceramic capacitor for vibration …
Abstract. Owing to their high permittivity and volumetric efficiency, the demand for multilayer ceramic capacitors (MLCCs) has increased rap-idly in recent times. Because of the …
Seven Switching Techniques for the Ladder Resonant Switched-Capacitor Converters With …
Ladder resonant switched-capacitor converters (RSCCs) provide high step-up voltage gain, but the continuous regulation range is typically limited with an extremely wide switching frequency band. This article introduces a new full-range regulation method for step-up ladder RSCCs along with seven switching techniques. Each …
Sensors | Free Full-Text | Review of Health Monitoring …
This monitoring scheme consists of various stages: (1) first-start calibration of the capacitor; (2) estimation of the capacitor''s current; (3) estimation of the capacitor''s core temperature; (4) estimation of the …
Dynamic Capacitor Ampere-Second Balance Transient …
This paper presents a dynamic capacitor ampere-second balance transient calculation modeling method. The instantaneous state of input voltage, instantaneous state of …
Advanced analytical techniques to characterize materials for …
This review covers recent developments in advanced analytical techniques to characterize materials for electrochemical capacitors. For double layer capacitors, …
Simple analysis of a flying capacitor converter voltage balance dynamics …
Flying capacitor multilevel PWM converter with a natural voltage balance is an attractive multilevel converter choice because it requires no voltage balance control effort. Flying capacitor converter practically does not suffer from voltage balance imposed performance limitations as opposed to multiple point clamped converter. Voltage balance …
TOPOLOGY, ANALYSIS, AND CMOS IMPLEMENTATION OF SWITCHED-CAPACITOR …
This review highlights various design and realization aspects of three commonly used charge pump topologies, namely, the linear, exponential, and the Fibonacci type of charge pumps. We shall outline the new methods developed recently for analyzing the steady and dynamic performances of these circuits. Some practical issues for the …
Comparator design and analysis for comparator-based switched-capacitor …
The design of high gain, wide dynamic range op-amps for switched-capacitor circuits has become increasingly challenging with the migration of designs to scaled CMOS technologies. The reduced power supply voltages and the low intrinsic device gain in scaled technologies offset some of the benefits of the reduced device parasitics.
Fractional techniques to characterize non-solid aluminum electrolytic capacitors for power electronic applications …
Non-solid aluminum electrolytic capacitors are one type of reliability-critical components, and they are widely adopted in power electronic converters. The capacitance and ...
Dynamic Capacitor Ampere-Second Balance Modeling Method for Switched-Capacitor Converter …
Index T erms —Analysis methods, dynamic capacitor ampere second balance transient calculation (CASBTC) modeling method, switched-capacitor (SC) converters, two-switch boosting switched-
Power Factor Correction: Reactive Power …
Power Factor Correction: Reactive Power Compensation ...
VOLTAGE BALANCING A FOR FLYING CAPACITORS
3. FUNDAMENTALS OF VOLTAGE STABILIZATION FOR FLYING CAPACITOR 49 Assume that the load current is constant during a switching cycle; the capacitor current is expressed as: icf (t) = (d1 – d2)⋅ iL(t) (3-1) where, d1 and d2 are the instantaneous duty cycle of switch pairs, S1-S3 and S2-S4, respectively., respectively.
Dynamic Offset Cancellation Techniques for Operational Amplifiers
Since chopping and auto-zeroing are dynamic techniques that continuously reduce offset, they also remove low frequency 1/f noise as well as offset drift over temperature or time. In auto-zeroing amplifiers, the residual offset is mainly caused by charge injection and clock feed-through.
Dynamic analysis of multilayer ceramic capacitor for vibration reduction …
Owing to their high permittivity and volumetric efficiency, the demand for multilayer ceramic capacitors (MLCCs) has increased rapidly in recent times. Because of the electromechanical characteristics of BaTiO3, MLCC vibrates, resulting in printed circuit boards (PCBs) generating acoustic noise. To construct an accurate finite element model …
Analysis and Design of Calibration Technique for Capacitor …
A novel model is proposed to explain the capacitor mismatch induced error, and then two classic calibration techniques, which are called low-to-high (L2H) end and high-to-low …
Performance Modelling and Design Techniques for Efficiency Improvement in On-chip Switched-Capacitor …
Fundamental charge vector method analysis is a single parameter optimization technique limited to conduction loss assuming all frequency-dependent switching (parasitic) loss negligible. This paper investigates a generalized structure to design DC-DC SC converters based on conduction and switching loss. A new technique is …
Failure behavior of tantalum electrolytic capacitors under extreme dynamic …
Unfortunately, previous research on tantalum electrolytic capacitors has focused more on phenomenological and qualitative issues than on mechanistic and quantitative investigations. On the basis of experimental testing, Li et al. 20 classified the impact failure behavior of tantalum capacitors into functional failure and parameter shift …
Dynamic Modeling and Analysis of Constant On Time Variable …
Abstract: A constant on time variable frequency one-cycle control technique (CVFOCC) for switched-capacitor (SC) converters is presented in this paper. It is …
Capacitor mismatch calibration method for SAR ADC with …
Capacitor mismatch calibration method for SAR ADC with ...
Fractional techniques to characterize non-solid aluminum electrolytic capacitors for power electronic applications | Nonlinear Dynamics …
Non-solid aluminum electrolytic capacitors are one type of reliability-critical components, and they are widely adopted in power electronic converters. The capacitance and equivalent series resistance of these components have significant effects on the performance and reliability of power electronic systems. In this work, by exploring the electrochemical …
Dynamic analysis and intelligent control techniques for flexible manipulators…
First, a comparative dynamic analysis of flexible manipulators was presented and then control strategies were categorized and studied. Fuzzy logic, neural network, and genetic algorithm approaches were introduced and a range of contributions of such methods in flexible robot control were presented.
Active Capacitor Voltage-Balancing Methods Based on the Dynamic …
This paper presents the active capacitor voltage-balancing (ACVB) methods based on the dynamic model for a five-level nested neutral-point piloted (NNPP) converter using hybrid carrier modulation. The traditional hybrid carrier modulation provides natural voltage balancing of floating capacitors and dc-link capacitors. First, the natural voltage …
Advanced analytical techniques to characterize materials for electrochemical capacitors …
DOI: 10.1016/J ELEC.2018.03.004 Corpus ID: 139726023 Advanced analytical techniques to characterize materials for electrochemical capacitors @article{Lin2018AdvancedAT, title={Advanced analytical techniques to characterize materials for electrochemical capacitors}, author={Zifeng Lin and P. L. Taberna and …
Analytical Modelling of Voltage Balance Dynamics for a Flying Capacitor Multilevel Converter …
Reported capacitor average natural voltage balancing dynamics analysis methods are mostly based on frequencydomain Fourier transformations that involve infinite series.
Analytical Modelling of Voltage Balance Dynamics for a Flying Capacitor Multilevel Converter …
In general, there are three types of topologies for MLI; Neutral point clamped (NPC), or diode clamped, flying capacitor and cascaded H-bridge multilevel inverters (CMLI) [8][9][10]. The above ...
A Dynamic Model of Switched-Capacitor Power Converters
This paper introduces a new analysis technique for complex switched-capacitor (SC) converters. It uses conventional circuit analysis methods to derive state-space models of each switching mode.
DC-Link Electrolytic Capacitors Monitoring Techniques Based on …
The proposed scheme utilizes DWT analysis, whereas other techniques use FFT analysis and a filter. The measurement of capacitor ripple voltage requires …
Modeling Techniques for Dynamic and Steady-State Analysis of …
A new class of modular multilevel dc/dc converters has recently emerged that eliminates the traditional full-rated intermediate ac stage inherent to two-stage dc/dc converter structures, that is, two cascaded dc/ac modular multilevel converters (MMCs). This paper introduces the first averaged dynamic state-space model for this new class of …
Dynamic Power Factor Correction in Industrial Systems: An …
Abstract. In industrial contexts, optimizing power factor efficiency is of paramount importance. This work presents a comprehensive study that focuses on the …
Comparative Analysis of Steady-State Models for Switched Capacitor …
The accurate analysis methods will fully determine a SC converter''s steady-state and dynamical ... This paper presents a dynamic capacitor ampere-second balance transient calculation (CASBTC ...
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