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Given a 3phase inverter let's say 400vac rms line to line (means 230VAC rms each line referred to neutral of generator). After the 6 diodes converter stage there is a about 550VDC (approx -275VDC to +275VDC) after the condenser which straighten the humps. This is because the non-rms phases range...

Hi To correct power factor and consequently reduce the amunt of current the source has to provide for the active power (true work we want) and the reactive power. The way is to add impedances to the circuit to the load impedances. The added ones are again of the reactive type. Formulas...

This is in general, when speaking of the output current of a 3 phases inverter we are speaking of one line current or of the sum of three lines currents? Or other? Example we have a three phase load (motor) in star connection. Let's say no neutral connected. The switching stage produces three...

Hi I have now to deal with the control of a BLDC. This subject is totally new for me. I received from the motor manufacturer the data sheet with a Ld and a Lq inductance in mH. So in order to have the inductive reactance of the stator windings how do I put together Ld and Lq inductance to get...

Hi I'm using Studio 5000 from Rockwell. There is the possibility to do for loops and I normally do it using arrays. Now I need to make a loop doing something with array elements but I need also to use an index that again is an array. Example main_array[index[0]] but syntax is not accepted and...

Hope the subject is right for this category. What does it mean "vectorial control" speaking of inverters and control of electric motors. I mean how does this control can work together with frequency/speed control based on a system of switches which govern amplitude and frequency of the...

Hello Why when generators are in parallel increasing the fuel will produce more active power without affecting the speed of the prime mover and consequently the frequency? A "single" generator instead will increase the speed/frequency with more fuel injection. The same for the field...

Hello, I am new here and I am not used to the Kalman theory and algorithm implementation. I need some help with the Kalman algorithm implementation. I need to control a process where the measure can be affected by drift. I believe that Kalman could be the solution for this. But I do not know...