نتایج جستجو برای: electric rectifier

تعداد نتایج: 150823  

Journal: :IEEE Access 2021

Emission of greenhouse gases and scarcity fossil fuels have put the focus scientific community, industry society on electric vehicle (EV). In order to reduce CO 2 emissions, cutting-edge policies regulations are being imposed worldwide, where use EVs is encouraged. best scenarios reaching 245 mi...

A new type of single-phase stand-alone induction generator using a three-phase induction machine and a single-phase voltage-source PWM inverter is introduced. The generator scheme is capable of producing constant load frequency with a very well regulated output voltage. A small lead acid battery and a single-phase full diode-bridge rectifier are used to feed the inverter. The inverter feeds one...

2007
Min Zhang

Using a top-down design methodology, two levels of hybrid electric vehicle power system are presented in the paper. At the highest abstraction level, a behavior modeling method is used to develop models for 3-phase AC/DC converter and brushless DC motor controller, which reduce the simulation time without compromise of accuracy. At the second level of design, six diodes along with delta-delta a...

2015
Xiaohong Ran Shihong Miao Yingjie Wu

With the advance of insulated gate bipolar transistor (IGBT) converters, Multi-Terminal DC (MTDC) based on the voltage-source converter (VSC) has developed rapidly in renewable and electric power systems. To reduce the copper loss of large capacity and long distance DC transmission line, an improved droop control design based on optimal power sharing in VSC-MTDC integrating offshore wind farm i...

1999

Fig. 1 Input rectifier bridges circuit diagrams Fig. 2 Reverse recovery waveforms comparing standard rectifier (a) to semifast rectifier (b) Switching power semiconductors are used in inverter systems with a DC-link. Due to high switching frequencies, harmonics and line distortions may be generated. It is important that new designs reduce these disturbances and fulfill the EMI filtering require...

2013
Bidisha Roy Ashoke Kumar Basu

The present paper uses the software Hybrid Optimization Model for Electric Renewables (HOMER) to design and analyze a non-autonomous power system which includes a grid connected solar photovoltaic (PV) based power system with battery storage to supply a residential load located near Siliguri, WestBengal (with latitude and longitude of 26 072’N and 88 041’E respectively). For optimal system desi...

Journal: :Journal of neurochemistry 2008
Bin Shen Kechun Zhou Shenglian Yang Tianle Xu Yizheng Wang

Neuronal excitability can cooperate with synaptic transmission to control the information storage. This regulation of neuronal plasticity can be affected by alterations in neuronal inputs and accomplished by modulation of voltage-dependent ion channels. In this study, we report that enhanced excitatory input negatively regulated neuronal excitability. Enhanced excitatory input by glutamate, ele...

Journal: :JCP 2012
Xiangzheng Xu

Because of using the nonlinear high-power, single-phase, multi-step full wave or bridge rectifier electric locomotive in electrified railway, the electrified railway traction power supply system has serious power quality problems, which affect safe operation of the electrified railway and impact the local power grid adversely. Aiming at the electrified railway power quality problems, a homogeni...

2010
M. Gopinath S. Ramareddy

Conventional boost PFC converter suffers from the high conduction loss in the input rectifier-bridge. Higher efficiency can be achieved by using the bridgeless boost topology. In this paper, digital simulation of bridgeless PFC boost rectifiers, also called dual boost PFC rectifiers, is presented. Performance comparison between the conventional PFC boost rectifier and the bridgeless PFC boost r...

Journal: :Nature communications 2016
Yunlong Zi Jie Wang Sihong Wang Shengming Li Zhen Wen Hengyu Guo Zhong Lin Wang

To sustainably power electronics by harvesting mechanical energy using nanogenerators, energy storage is essential to supply a regulated and stable electric output, which is traditionally realized by a direct connection between the two components through a rectifier. However, this may lead to low energy-storage efficiency. Here, we rationally design a charging cycle to maximize energy-storage e...

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