نتایج جستجو برای: capacitor banks
تعداد نتایج: 39017 فیلتر نتایج به سال:
This paper focuses on the development of capacitor voltage balancing methods in a flying capacitor multilevel inverter (FCMLI) fed induction motor drive. For improve the performance of flying capacitor multilevel inverter to implement a switching pattern selection scheme. This reduces capacitor voltage fluctuation without using voltage feedback and RLC Filter circuits connected in parallel with...
Optimal capacitor placement and network reconfiguration are well-known methods to minimize losses, enhance reliability, improve the voltage profile of electric distribution networks (EDNs). Distribution (DNR) consists altering system topology by changing states ties sectionalizing switches, while optimal capacitors (OPCAs) involves sizing finding location banks within for reactive power control...
A method to eliminate the effect of capacitor mismatch for a switched-capacitor DAC is described. The method consists of two elements. The first element is the use of a compensating switching algorithm, which can eliminate the effect of capacitor mismatch only for some digital input values. The second element is that each digital word is written as the sum of two other words for which the capac...
banks play important roles in promoting national development. in order to provide efficient services and to perform their statutory roles effectively, banks are required to comply with established standards. in nigeria, the statement of accounting standards (sas), companies and allied matters act (cama) and the central bank of nigeria’s directives and regulations provide guidelines to banks in ...
BACKGROUND Phase-2 voltage and maximum pulse width are dependent on phase-1 pulse characteristics in a single-capacitor biphasic waveform. The use of 2 separate output capacitors avoids these limitations and may allow waveforms with lower defibrillation thresholds. A previous report also suggested that the optimal tilt may be >70%. This study was designed to determine an optimal biphasic wavefo...
In this paper we describe an apparent paradox concerning a moving plate capacitor driven by thermal noise from a resistor. The plates are attracted together, but a demon restores the plates of the capacitor to their original position when the voltage across the capacitor is small-hence only small forces are present for the demon to work against. The demon has to work harder than this to avoid t...
A novel two-split capacitor (T-SC) array structure for Successive Approximation Register (SAR) analog-to-digital converter (ADC) is proposed. When used as digital –to-analog converter (DAC), this circuit reduced the chip area by 27.7% in comparing with the conventional Split Capacitor (SC) at resolution=14. The area reduction effect can be more significant with the increasing resolution of ADC....
Conventional switched capacitor converters have an inherent drawback that their efficiency decreases as the output current increases. This inherent drawback is due to a periodical forced charging and discharging operation in the internal switched capacitors accompanied by a large capacitor current. Their efficiency can not be increased by decreasing its internal resistance. As a result, convent...
Micromachined gyroscope always contains two groups of capacitors, one is the driving capacitor, which is used to drive the micromachined gyroscope, to make sure the gyroscope could oscillate along the driving direction. The other is so called the sensing capacitor, which used to detect the displacement along the sensing direction, in order to detect the input angle velocity. Since there are som...
This paper presents the generation and transmission expansion planning (GTEP) considering switched capacitive banks (SCBs) allocation in power system, including demand response program (DRP). scheme is based on system flexibility. The objective function of minimizes expected cost that equaled to summation total construction costs SCBs, units (GUs) lines (TLs), operating GUs. It concerned with A...
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