Hi everyone welcome back to the solar energy course let's start today.
Is forming and a by everyone so our pelts photo voltaic pairs can be wired or connected to gather in
user series or about combination or pause to increase the voltage or the current capacity of the solar
array.
If there array Bell are connected to this are in serious combination zinn's a voltage increase and is
connected to Giza in.
Zen is a current increases Zay electric power in what generated boy these different photovoltaic combination.
Will it still be the product of the voltage and the current be equal.
The Times all but is a solar panel are connected together.
The upper right hand corner will always be the maximum power point and short if they connected in parallel.
The this point will be the maximum power point and if z connecting a series this will be the maximum
power point.
There are three types of power connection first period.
Second Series serve the virus's connection.
Let us start with very connection
how to set up your system in power.
That better connection is accomplished by joining Sam Foster off to balance together as well as the
negative of each parent together.
As shown in this figure.
Suppose that of the first fellow connected to Z both of us the second panel and the negative of the
second panel connected to Z negative of the first bundle.
The main advantage of this connection is it helps control the voltage while generating assist them in
this advantage of this connection.
It can only be used with the same voltage when it can cause high current.
If zero are too many connections this connection has many problems the main problem of this connection
is high and bridge is difficult to travel long distance without using get very sick wire.
So to reach you will increase as a voltage and both will decrease the solution of this problem is by
connecting a series diode to each set to avoid reverse current if the voltage decrease in series the
dial Reid that a very it is a faulty shape mean the light allows a tunnel to go in one direction and
the other she delivers the current to the desire delude
what an observer.
This advantage of this solution is that the constant losses of the voltage as a value chain reduce the
output voltage because all z then and zero is a better solution is the use of germanium diet instead
of silicone diet to reduce the losses of the voltage
another solution is to use the magnetic field sensitive to detect the reverse of Carol and activates
the power separation switch this is started with the better way why did those identical operating solar
burner in Basra when you can next solar battle in Perth.
The total out of the voltage of solar array is the same as the voltage of the single bell or why is
the total output current is a sum of the current pulsing zero each fellow Zellweger is the only invalid
quiet Z is a banner connected are of the same type on the boundary if we had four panels of ratings
one hundred and fifty two one and nineteen voltage and it and there means that total voltage would equal
to nineteen voltage and has a daughter current with equal to number of Z solar billions times the current
of each bell means four times eight will equal to thirty two and b Zen the total current opposite error
array will equal to sixty two and beer.
The total power would equal to the total voltage times the total current Will it work to 19 times 32
will equal six or eight.
While but a widening of the different grating solar panel in battle.
Here is a parallel connection of solid opinion of different voltage rating and the same country.
If we had three solar panel or freaking one hundred and fifty two watt and nineteen volts and it ambient
and one solar panel what is one hundred and thirty six while 17 voltage and it ambient.
We will find is that the total voltage of this error rate will equal to the lower voltage means with
equal to 17 voltage.
What is a thought that going to an equal to the number of Zeiss modules times.
Is there anything current of each molding mean four times eight would equal to sixty two and MP talked
about when it equal to is it to the voltage times the total current me 17.
Both times 32 and there will equal to five hundred and forty four what as you can see things are getting
worse since the total voltage of that array is that your mind buys a solar panel of the lowest politician
rating.
We received 11 per cent losses of installed solar power.
Let's see the next exam.
Let's see what happens when we break even more diversity and connect in Paris solar panel of different
voltage and current readings let's say we had two solar panel of one hundred and fifty two was known
to voltage and the eight m b and once all the building was 126 Walt and the 18 voltage and seven MP
and one with eighty five watt and 17 voltage and the five and b you can realize that the total voltage
would equal to the lowest voltage of those special means will equal to seventeen volts that the current
will equal to some measure of all current mean five the last seven plus eight lost it will equal to
twenty eight ambit now the total power will equal to the total voltage times the total current mean
seventeen voltage times do any aid and there will equal to four hundred and seventy six what now zero
is twenty two per cent of losses of any installed power
now let's get to the serious foundation how to set up your system ensues.
This is the mission is accomplished by joining the positive of one banner to the negative one mean.
If we have three panels like this series the negative one is out as a positive one it's connected to
the negative of the next one and the next one.
The positive is connected to negative and the positive is going to out so serious is all serious condition.
This array is called a serious condition.
This is condition is connected with another sense connection in bad condition as you see bandwidth is
a problem of serious condition.
The problem of connecting solar panel is shielding which you make calls that shaded cell damage.
In the case of Lucas shaving on their solar cell due to dust for example that presents of dust on a
solar cell means that there is a shadow on that as lists read you active radiation.
Although is observable fluke means fewer pairs of live electrons and games generate awareness of current
of any cell is reduced by shaving at a verse simple dish.
Okay is in the cell as is voltage may damage the cell the solution of Z shaving problem solving the
problem of connecting the solar panel is to could make a diamond embedded with direction of solar cell
to the solar cell or when Z current of any cell is reduced by shading an inverse voltage is created
until this reverse voltage exceeds the light installation voltage so part of the total current both
through partial light and the remaining current complete its false rumors is said.
Now let's go to the wiring of solar panel of identical operating in series or when you connect solar
panel in series the total output of current of the solar array is the same as the current pulsing throws
signal.
When you are connecting solar panels in Ceres the total output current of solar array is the same as
the current pulsing signal a single panel or why is it true that our voltage is the sum mission of Z.
Holder drops on each solar panel.
Let's fix this an exam.
If we had four pillars of one hundred and fifty two watt and 19 voltage and it MPEG it although the
voltage will equal to four times 19 volts will equal to 76 volts I mean the voltage between this positive
and is just negative.
Well it was two 76 voltage.
If we had one hundred and fifty two while Beryl was nineteen voltage and it and.
The total voltage you would need.
What does a number of the panel which is four times their breathing voltage of each panel which is nineteen
volt.
Now is that all the Volt should equal to four times nineteen Volt with equal to 76 means that voltage
between this positive and this negative would equal to 76.
Lord do not come up with equal to it M B or is the current of any modern thought that the bar will equal
to the total voltage times the total current mean 76 volt dials eight and beer would equal to six or
eight.
What wave of solar panel of different greeting in C is lit.
If we had three solar panel of one hundred and fifty two what nineteen voltage in it and beer and only
one solar Ben with one hundred and seventy six wall and seventeen voltage and it and then we will find
z z thought the voltage will equal to the last 19 the last nineteen plus nineteen will equal to seventy
four more all the time will equal to the current of each module means it and b it knows it took the
bar will equal to total voltage times the total current will equal to seventy four both times it and
beer when it was to five hundred and ninety two what it means zero is s three per cent losses of the
same installed power
this times we have seen this come by a nation also the benefit of different voltage sheathing and different
car three as you see we had two solar Benin of one hundred and fifty two watt and my Indian voltage
and it and and one solar band and was one hundred and twenty six wild and the eighteen voltage and seven
and beer and one other so that band with eighty five wild and seventeen voltage and five and big zap
voltage of this every with equal to seventeen blast eighteen blast nineteen plus nineteen mean the total
bullish will equal to seventy three Volt to the current of this solar array will equal to the lower
of this error rate means will equal to five and bid it took the bar you mean that the voltage times
at all to the current seventy three times five were equal to three hundred and sixty five wall or forty
percent losses of Zen you stole the ball in this Examiner You can see that it's a total of three different
types of solar been out of use is by types have its own voltage and current about 80 so it took a current.
Here is the timeline by the battle of the law of this country and as a result the total wattage is reduced
by 40 per cent compared to the previous exam whereas the losses of the other board is not significant
the last type of coordination is seems and condition.
The combination of series and better condition is also possible.
Indeed this depend on the maximum possible total output voltage and the maximum possible total output
car of the solar energy which are limited by the maximum input voltage and maximum impact of that charge
cultural.
For off grid system or a inverter for a greater point system as it would be shown in the next section
calculation.
Show you how many pairs and how to wire
what you have to remember is that serious conviction increase the voltage or why is a better condition
and carries the most serious and better condition result in more installed Watts which goes down.
Should you decide to wire solar panel of different rate.
Let's take this an exempt we had a solar panel one hundred eighty two watt and nineteen voltage and
it m Biff set over the voltage of this array where it was to that oldest of each series means I am dim
voltage lost 19 voltage means that all the voltage with equal to thirty eight volt buzzer to the current
will be equal to each barrel.
You mean the branch has it and bad current means the total current of this evergreen wood.
It was too asserted to embezzle means the total power of this error rate will equal to zero.
The voltage times that total current means thirty eight times thirty two and there will equal to twelve
hundred sixteen watt or eight times one hundred fifty two watts.
See you in the next lecture when we are going to discuss that better.