DOI: 10.1177/0954409716630338 Corpus ID: 112262547; Analysis of structure importance of compensation capacitor in jointless track circuit @article{Zhao2017AnalysisOS, title={Analysis of structure importance of compensation capacitor in jointless track circuit}, author={Linhai Zhao and Yi Maggie Guo and Barbara D. Klein}, journal={Proceedings of the Institution of Mechanical
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DOI: 10.1109/TII.2018.2833209 Corpus ID: 53557370; Analysis and Optimized Design of Compensation Capacitors for a Megahertz WPT System Using Full-Bridge Rectifier @article{Fu2019AnalysisAO, title={Analysis and Optimized Design of Compensation Capacitors for a Megahertz WPT System Using Full-Bridge Rectifier}, author={Minfan Fu and Zefan Tang
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Objective of compensation is to achieve stable operation when negative feedback is applied around the op amp. Types of Compensation 1. Miller - Use of a capacitor feeding back around a high-gain, inverting stage. • Miller capacitor only • Miller capacitor with an unity-gain buffer to block the forward path through the compensation capacitor.
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Sustainability 2023, 15, 15094 3 of 33 but the cost of laying a large-scale charging guide cannot be ignored. Therefore, some scholars have proposed a solution to achieve stable p
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Miller compensation at the cost of complex design and analysis procedure [2, 3]. A novel cascode compensation scheme called hybrid cascode compensation has been introduced in [4, 5] by the authors. In this method, two distinct capacitors are used between two low-impedance nodes of the first stage and the output node.
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In this paper, an inductive power transfer method, a battery charger for electric vehicles regulates the battery''s current and voltage using a diode bridge rectifier with a dc-dc
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Meanwhile, in view of the dynamic changes in load and mutual inductance that may occur during the use of the three-coil WPT system, a compensation capacitor design and a relay coil compensation
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Analysis of structure importance of compensation capacitor in jointless track circuit. The results also show that the compensation capacitors closer to the receiving end are more important than those closer to the sending end. In addition, C2, C6, and C3 closer to receiving end are the most important and should be paid close attention
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It is worth remembering that capacitors used for com- pensating reactive power work with voltages, which can be hazardous to human health. For this reason, touching the case of a capacitor with a
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In order to minimize this negative effect, the compensation capacitors are optimally designed, and the series-series topology is found to have the smallest phase under
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Based on the models, the relative impact of compensation capacitor on signal amplitude is obtained by simulation. The paper further proposes a calculation method for structure importance of compensation capacitors. Experimental results indicate that the rankings of structure importance are not affected by ballast resistance of JTC in this method.
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The present research proposes an approach for determining a compensation capacitor that minimizes the change in PTE in a distance-variable WPT system. This system
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Analysis and Compensation of the Series Resistance Effects on the Characteristics of Ferroelectric Capacitors Abstract: The energy efficiency of ferroelectric-based devices makes them interesting for many applications. However, their optimization requires a dependable characterization of the ferroelectric (FE) material.
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Then optimal compensation capacitors are found through a global search and shown to be valid in simulation. In the final experiment, it shows that the use of optimal compensation capacitors
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A wireless power transfer system can increase its system frequency to several Megahertz for large spatial freedom. A MHz system usually uses the same compensati
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optimize the SS compensation capacitors for a high-frequency WPT system. The circuit model is shown in Fig. 5. The value of compensation capacitors should be properly designed instead of calculated through (1). For convenience, the coil inductance and compensation capacitance can be combined and represented by their net reactance at the
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In order to minimize this negative effect, the compensation capacitors are optimally designed, and the series-series topology is found to have the smallest phase under load and coupling variations. Finally, an experimental 6.78 MHz system is built up to verify the optimized design of the compensation capacitors.
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19. Voltage multiplier: Capacitors can be used in voltage multiplier circuits to generate a voltage several times the magnitude of the input voltage. 20. Pulse shaping: Capacitors can be used in pulse shaping circuits to smooth out pulse edges or to create a pulse with a specific waveform. 21. Switching: Capacitors can be used in switching
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This paper discusses the impedance characteristics of the full-bridge rectifier at MHz and their influence under the series-series, parallel-series, series-parallel, and parallel-parallel compensation topologies.
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For a configuration with compensation at one end of a line, the results indicate certain advantages in using the potential from the line side of the capacitor, and the use of a relatively large
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The use of a series compensated capacitor causes damage to the intrinsic impedance of a power transmission line and affects operation actions of protection such as distance, etc. For this problem, a model whose operation mode is the same as the one at a site is built. The effect of the series compensated capacitor on directional circle characteristic impedance relay distance
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Simulation and analysis of the impact of compensation capacitor on Are1, Are2, and Are3(x) Analysis of structure importance of compensation capacitors in JTC; Conclusions; Declaration of Conflicting Interests; Funding; The 2012 international conference on wavelet analysis and pattern recognition, Xi''an, China, 15–17 July 2012, pp.137–147.
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The line parameters are selected as Z = 0.032 + j0.35 Ω/km, Ysh = j4.2 * 10−6 S/km and l = 200 km. Analysis of shunt compensation Five different capacitor sizes are employed for the shunt compensation with different voltage-sensitive
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Analysis of structure importance of compensation capacitor in jointless track circuit Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit ( IF 1.7) Pub Date : 2016-11-11, DOI: 10.1177/0954409716630338
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Capacitor breakdown often takes place under lightning overvoltage and operation overvoltage. If the breakdown of CVT capacitor component occurs simultaneously with lightning overvoltage and operation overvoltage, it may cause the failure of distance protection [4]. 2 Analysis of Possible Causes The capacitor set of CVT is formed by 1 to 4 coupling
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When low-ESR capacitors are used, the delay because of the capacitance-related ripple can lead to sub-harmonic oscillation. As a result, utilisation of high-ESR capacitors is required, and thereby, results in the increase of the output ripple voltage. To
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The compensation effectiveness indexes are used to help in the analysis of the compensated transmission line. The methodology has been practically applied to the artificial AC transmission line and results are also provided in the paper.
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Series compensation is the method of improving the system voltage by connecting a capacitor in series with the transmission line. In other words, in series compensation, reactive power is inserted in series with the transmission
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Based on the above analysis, a relay coil compensation capacitor model is proposed to achieve the optimal transmission efficiency and transmission power of the three
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secondary compensation capacitors in a 6.78 MHz system when using a full-bridge rectifier [24]. As to the knowledge of the authors, there lacks intensive analysis on the impedance characteristics of the full-bridge rectifiers when working in MHz WPT systems. This effort is important to improve the design of the compensation and
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Then, a quadratic function is used to implement piecewise fitting to the IVAE between the tuning area at the sending end of the track circuit and the fourth compensation capacitor counted from the
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In order to minimize this negative effect, the compensation capacitors are optimally designed, and the series-series topology is found to have the smallest phase under load and coupling variations.
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Based on the models, the relative impact of compensation capacitor on signal amplitude is obtained by simulation. The paper further proposes a calculation method for structure importance of compensation capacitors. The 2012 international conference on wavelet analysis and pattern recognition, Xi''an, China, 15–17 July 2012, pp.137–147
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Various WPT systems have been studied to improve and maintain PTE at a certain level under air gap variation conditions. For instance, a full-bridge inverter with phase-shifted control that can regulate the output voltage has been designed. 16 In addition, by applying phase shift control in the inverter part and rectifier part, the PTE compensation is achieved in
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And, using an analysis model consisting of a 50[hp] induction motor and a low-voltage distribution line, we analyzed the changes in active power, reactive power, and power factor during the induction motor starting time before and after installing the power factor compensation capacitors. From the analysis results, a method to prevent self
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1. Compensation capacitors can be added for filtering effects. The compensation capacitor may be used to reduce bandwidth, for example in a case where that signal frequency is not needed and the designer wishes to reduce noise. As
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