I recently purchased 2 little voltmeters they look like the sort that would go in a control or instrument panel they are connected with just 2 wires which provide the operating supply ( they light up green and red) however the green one states it will work between 20and 500 volts and the red one between 60 and 480 volts. When they are both on the green one indicates normally around 241 volts the red one shows 235 volts why the discrepancy I know it's not much but makes you wonder if one of them is lying. Secondly I've noticed that the green one tracks voltage changes faster than the red one and that a few times the green one jumps down to 238 then up to 241 multiple times while the red one stays the same and I think can see a slight flicker in my filament lamps when this is happening incidentally both meters are connected to the same plug a 2 pin 5 amp one
You are over thinking this rather by worrying about the L and C - all you need to get the voltage and current waveforms in figure 1, is the circuit of figure 1 - so there are diodes, a finite supply resistance, and a smoothing cap and a load. No inductors in the model at all, and none are necessary to get this waveform. Adding in the real L and C of the diodes is a small extra impedance, and only really has a noticeable effect on far higher frequency terms than 150Hz. if you need to see the scales a larger version of the pictures, clocking it should open a full screen version.
The other 2 circuits show how those sort of current and voltage waveforms can be approximately represented as a sine wave plus some 3F.
And the frequencies are there - at very high frequency RF it is not unknown to use a diode to generate a high frequency, by using it to distort an RFat sub-harmonic frequency that being lower is easier to generate. Tripler circuits are very common, as a doublers that look like a full wave rectifier
Actually if you need it you get a model with a better fit to the 'real' rectified waveforms, you an do so by adding further higher order harmonics to the mix.
As to your waveforms not being so bad as my simulations, I have perhaps used a bit of artistic licence, and chosen values that make the effect very clear indeed.
If you or anyone else has a copy of LT spice installed and wishes it, I can upload the source files so you can play. At your own risk.
It is surprising how much L and C you need on the input to pull out the conduction angle to give a respectable power factor. Which is why in rectifer type cases, L_C filtering is not the weapon of choice for PFC, rather a switching circuit that tracks up and down the sine-wave to a degree.
You are over thinking this rather by worrying about the L and C - all you need to get the voltage and current waveforms in figure 1, is the circuit of figure 1 - so there are diodes, a finite supply resistance, and a smoothing cap and a load. No inductors in the model at all, and none are necessary to get this waveform. Adding in the real L and C of the diodes is a small extra impedance, and only really has a noticeable effect on far higher frequency terms than 150Hz. if you need to see the scales a larger version of the pictures, clocking it should open a full screen version.
The other 2 circuits show how those sort of current and voltage waveforms can be approximately represented as a sine wave plus some 3F.
And the frequencies are there - at very high frequency RF it is not unknown to use a diode to generate a high frequency, by using it to distort an RFat sub-harmonic frequency that being lower is easier to generate. Tripler circuits are very common, as a doublers that look like a full wave rectifier
Actually if you need it you get a model with a better fit to the 'real' rectified waveforms, you an do so by adding further higher order harmonics to the mix.
As to your waveforms not being so bad as my simulations, I have perhaps used a bit of artistic licence, and chosen values that make the effect very clear indeed.
If you or anyone else has a copy of LT spice installed and wishes it, I can upload the source files so you can play. At your own risk.
It is surprising how much L and C you need on the input to pull out the conduction angle to give a respectable power factor. Which is why in rectifer type cases, L_C filtering is not the weapon of choice for PFC, rather a switching circuit that tracks up and down the sine-wave to a degree.
