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Questions related from Majidreza Salehi
I have a voltage source inverter connecting to a symmetrical load through a delta-star transformer. Surprisingly, the primary currents of transformer have DC components. the output voltage of...
01 August 2016 1,780 13 View
I've seen a wide range of L and C values for LC filters for off-grid inverters in papers. Is it true to say that less inductance and larger capacitance must be chosen for high power inverters?...
17 March 2016 3,694 3 View
which kind of core material, wiring (delat-wye, delta-zigzag, ...) is appropriate for a 3-phase inveter according to the harmonic problems, acoustic noise, neutral overload supplying nonlinear...
28 January 2016 5,227 8 View
Manufacturers use capillary tubes for upper cooling by changing the diameter and length of the capillary tube. But I don't know the good diameter and length of the capillary tube for an air...
01 November 2014 3,549 5 View
I know in HVAC for example a condenser coil 1 cubic foot almost is suitable for 1 hp(horsepower)cooling capacity. But I don't know the relationship between evaporator and condenser size with...
01 November 2014 9,361 1 View
We designed a grid-connected converter for wind. We saw in the grid side there is a DC current. Can anybody solve this problem?
29 October 2014 5,461 10 View
We have a small BLDC motor(160W) and the load of the motor is constant. I want to control the speed of the rotor. We don't have access to the rotor, so we should use sensorless method, but we have...
27 October 2014 4,121 3 View
NTC is nonlinear.
11 October 2014 8,194 6 View
The study and development of anti-islanding controls are very important in wind and solar applications.
11 October 2014 4,507 10 View