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A three-phase inverter is used for interfacing a PV power generator to the grid of 420 VLL (max) and 50 Hz. The per phase input filter inductor LS =2.0mH and the DC-bus voltage is controlled to 740 V. The converter is controlled such that the power angle is 7.44 degree leading and the real power supplied to the grid is 20 kW. The converter supplies reactive power to the grid.
Calculate the converter voltage VC1, reactive power, the converter phase current and modulation index.
Determine the surface charge density on each conductor.
What are the incremental savings that result from increasing the efficiency of a PV collector by 1% in terms of collector area and costs? Assume that the PV module represents about 50% of the total PV system cost.
You have a bandwidth of 10 MHz (per direction) in a single-cell system and want to deploy a wireless telephone system. You have the following options: analog 30-kHz channels (as in AMPS)
Sketching the Dependence of l versus h on Cartesian Axes, The distance l from a point at a height h above the Earth's surface to the horizon can be approximated using Pythagoras theorem by the expression:
What is the advantage of using a double-break contact instead of a single-break contact?
Help with problem in Control signal processing class, Consider the unity-feedback control system whose open-loop transfer function is
Compare a lumped element model of a lossless transmission line (single L and C) with the distributed model. Use the following values for the transmission line in this comparative analysis.
Current Pulses over a Twisted Pair Telephone Line, A twisted pair telephone line has a constant attenuation between 0 Hz and 3300 Hz and linear phase shift with frequency
How a transformer works and apply those rules to a transformer where the primary core cross-sectional area is twice.
Vary as square root-application, The frequency f of vibration of a wire varies directly as the square root of the tension T of the wire
Addition of two numbers in IEEE 754 format A) a=3f200000, b=be600000 B) a=3f200000, b=ff800000 C) a=01100000, b=80e00000
Find the impulse response fpr the filter? How many nonzero terms does the impulse response contain?
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