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ADVANTAGES OF MPPT TECHNOLOGY VS PWM
EXPLANATION
OF
THE
MPPT
’S
FUNCTIONING
METHOD
Unlike a standard PWM regulator which lowers the panel
’s
voltage to the battery
’s
voltage, a MPPT regulator
(conv
erter/regulator) uses all the panel’s
voltage and reconverts the excess of voltage into charging
intensity (cf. patterns below)
* MPPT efficiency 95%
ADVANTAGES OF THE UNITECK MPPT
UNIMPPT
researches in real time (refreshes every 100 ms, one of the fastest MPPT solar charge controller
among on the market), the optimum power point of the panel, thus verifying if the voltage /intensity relation
has changed as to modify its conversion parameters in input and thus optimizing the output power.
V bat = 12,5 V
I bat = 5,43 A
A
Output power
67 W
V bat = 12,5 V
I bat = 7,84 A
A
Output Power
98 W*
Voltage
Intensity
MPPT
Regulator
Voltage
➔
Intensity
PWM
Regulator
Voltage = 18,7 V
Intensity = 5,43 A
.
Power generated
100W
V
A
1 2 3 4 5 6 7 8 9 10
25V
20V
15V
Maximum power point tracking
every 100ms
UNIMPPT ensures in this way the
maximum power production even
in changing weather conditions
(cloudy sky).
