AC versus DC Power Distribution in the Data Centerby Kristopher Jones
DC versus AC power transmission with reference to bulk-energy transfer (on left: Flexible AC transmission systems (FACTS) to the Quwayyah substation with Static VAr Compensator (SVC) (-50/+170MVAr 132kV) with the associated capacitors and air-core reactors for the substation;on right: Valve ...
An AC electric motor utilizes both a secondary and primary winding (magnet) to achieve functionality. The primary is affixed directly to a generator or the AC grid power, where it receives its energy. The secondary winding obtains its energy from the primary without the need for direct contact....
DC Versus AC based on present technology DC vs AC power grid Due to different architectures, voltage levels, and power electronics needed between AC and DC power grid, there are advantages and disadvantages of DC and AC power grid system. There are also challenges and opportun...
The AC versus DC debate personifies the fierce feud, the War of Currents as it is now called, two giants of electric power embroiled in the late 1890s.
Figure 11 and Figure 12 present results of efficiency versus power at 32.2 kHz and 48.7 kHz according to typical characteristics, while the results shown in Figure 13 show the efficiency relationship versus switching frequency. From the results presented in Figure 11, Figure 12 and Figure 13 it ...
For the particular example of 62.5 percent modulation, one ends up with a peak to peak of total ripple current ITof only approximately one quarter of the ripple current through a single set, i.e., approximately only 1 A peak to peak versus 4 A through each switch set, and versus 16 A...
The graph above illustrates AC and DC signals. The AC signal fluctuates about the DC offset. After performing a Fourier transform on a signal that consists of both AC and DC components, the DC component will be at 0 Hz and the AC signal will be at its associated frequency. ...
The intermittent nature of renewable energy generation and variable AC and DC loads are major factors that offer great challenges in power management for AC/DC hybrid microgrids. In this context, this paper presents a coordinated AC frequency versus DC voltage control (CFVC) scheme for managing co...
power electronic conditioning. The power electronic interface specification is dependent not only on the renewable energy supply but also on its effects on the power-system operation1. To obtain the voltage step-up function, a conventional non-isolated DC/DC boost converter was used2because of its...