نتایج جستجو برای: high current capability

تعداد نتایج: 2732874  

In this paper, an approach is proposed for accurate locating of single phase faults in transmission lines using voltage signals measured at one-end. In this method, harmonic components of the voltage signals are extracted through Discrete Fourier Transform (DFT) and are normalized by a transformation. The proposed fault locator, which is designed based on Random Forests (RF) algorithm, is train...

پایان نامه :0 1368

اولین سیستمهای قدرتی که مورد بهره برداری قرار گرفتند dc بودند(.آمریکا)1882 ولی بعدازاختراع ترانسفورماتور، بتدریج سیستمهای ac جایگزین سیستمهای dc موجود شدند . امروزه نیز اکثر سیستمهای قدرت از نوع ac می باشد. ولی در موارد خاصی کاربرد خطوط انتقال جریان مستقیم اجتناب ناپذیر است . مثلا دراتصال دو شبکه با فرکانسهای مختلف یا انتقال انرژیهای بالا در فواصل طولانی و یا اتصال شبکه های ac توسط کابل از زیر ...

Journal: :Iet Power Electronics 2023

Here, a new bidirectional multi-input-multi-output (B-MIMO) high step-up DC/DC converter with lower losses on switch/diode is proposed as suitable for electric vehicles. The topology consists of five inputs and two outputs the battery (energy storage) considered one inputs. Due to nature topology, different scenarios it are described. In discharging mode, stored energy transferred output loads....

2012
Ganesh P. Prajapat Lini Mathew

––This paper describes the performance of a Flexible Alternating Current Transmission Systems (FACTS) device, namely, STATic synchronous COMpensator (STATCOM) based on 48-pulse Voltage Source Converter (VSC), for the mitigation of voltage-dip caused by the starting of a high power induction motor. It improves the voltage profile feeding to a high power induction motor at starting by injecting a...

2013
Ganesh P. Prajapat Lini Mathew

This paper includes the performance of a Flexible Alternating Current Transmission Systems (FACTS) device, namely, STATic synchronous COMpensator (STATCOM) based on 6, 12, 24 and 48-pulse Voltage Source Converter (VSC), for the mitigation of voltage-dip caused by the starting of a high power induction motor. The different configuration of the STATCOM’s implemented improves the voltage profile f...

2001
Timothy A. Sandstrom

Current techniques for providing collaborative visual analysis of remote scientific data using the Internet are reviewed. It is shown why the tools in common use today, such as Microsoft’s NetMeeting, do not provide scientists with highly interactive viewing of high resolution dynamic scenes of remote data when using typical Internet connections. New tools that do provide these capabilities in ...

D. Azizian M. Bigdeli, M. Ganji

This study presents a modified transient current limiter (MTCL) for mitigation the inrush current of transformers. The MTCL is based on conventional transient current limiter (TCL), which, its configuration is modified to overcome the TCL drawbacks of operation. The proposed MTCL offers lower power losses and voltage/current THD during normal operation mode. It needs only one limiting reactor i...

2007
Owen B. Laug

A high-current, wide-band transconductance amplifier is described that provides an unprecedented level of output current at high frequencies with exceptional stability. It is capable of converting a signal voltage applied to its input into a groundreferenced output rms current up to 100 A over a frequency range from dc to 100 kHz with a useable frequency extending to 1 MHz. The amplifier has a ...

2011
Hu Jing Joshua L. Rovey

A high voltage pulsed discharge device which can produce intense high energy electron beam named “pseudospark” is presented in this work. This discharge device is able to hold 10s of kV voltage, kA current and 10 10 -10 11 A/s current rising rate. The pseudospark device is also a simply-constructed source for intense electron beam with high energy. The presented experimental investigation is fo...

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