نتایج جستجو برای: high current bus duct
تعداد نتایج: 2719775 فیلتر نتایج به سال:
Modulation strategies for multilevel inverters have typically focused on synthesizing a desired set of three phase sinusoidal voltage waveforms using a fixed number of dc voltage levels. This results in the average current injection and hence the net power drawn from the multiple dc bus terminals to be unmatched and time varying. Subsequently, the dc-bus voltages are unregulated, requiring corr...
DC Voltage Balance Control Strategy for Medium Voltage Cascaded STATCOM Based on Distributed Control
DC bus capacitors of Medium Voltage Cascaded STATCOM are independent. DC side voltage balance control method is the key influencing factor of current control. The imbalance of DC bus voltage increases harmonic current and affects the safety of device. In this paper, the unbalance mechanism of DC side capacitor voltage is analyzed. Based on the unipolar dual frequency and carrier phase-shifted S...
The Institute for Transport Studies at the University of Leeds is carrying out research about the reliability benefits from improved bus infrastructure. The study includes both demand and supply modelling, and it is hoped that the final stage of the project will include an economic analysis of the effects on reliability of different bus infrastructure improvement scenarios. Of the various measu...
-A new control method for single-phase shunt active power filter (APF) is proposed. It integrates the DC bus voltage control and active power filter command current generation, according to the periodicity of source current and energy balance concept. The instantaneous harmonic compensation and linear DC bus voltage control are achieved, without complicated and involved control logic, by using ...
In this paper, we propose a power effective bus encoding scheme which can minimize crosstalk problems as well as bus transitions effectively. In current submicron technology, minimizing propagation delay and power consumption on buses is one of the most important design objectives in the field of System-on-Chip (SoC) design. Crosstalk between adjacent wires on bus may create significant propaga...
DC-BUS based power distribution systems with battery backup have been widely used in aerospace and telecommunication applications, where the bus voltage is usually determined by the battery. In these systems, there are many loads that need different and low operating voltages. Since the bus voltage is usually much higher than the load voltage and varies in a wide range with the stage of charge ...
Introduction and purpose: Noise is one of the most harmful physical issues in a workplace that can cause stress. Transit bus drivers are exposed to environmental and bus noises that can act as stressors for them. In this regard, the present study aimed to determine the effect of noise exposure on occupational stress of bus drivers in Bojnourd, Iran in 2018. Methods: This cross-sectional descri...
In a realistic and large power system, the overcurrent relay coordination problem considering different network topologies and different location of faults is stated as an optimization problem with a large number of constraints. In this paper, a new index is proposed to detect and remove the inactive inequality constraints in relay coordination problem. This index is defined for each relay pair...
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