Booster Module

In solar pump system, if the pump power is small, only a few solar panels are
needed to drive the water pump. However, the voltage of several solar panels
cannot meet the voltage of the water pump inverter, resulting in the need for
more solar panels. In this case, the energy of the solar panel is wasted and
the cost of the entire system is increased. In the end, the boost power module
low-voltage starting device (LV60-90) and (LV40-70) have been developed, which
can convert low-voltage DC into high-voltage DC to meet the starting voltage of
the solar pump inverter, while avoiding the danger of high-voltage DC of solar
modules.

Features of Boost Power Module
LV40-70 design for (3phase /1 phase220Vac) inverter, input voltage range :40
to 70Vdc.

LV60-90 design for (3phase 380Vac) inverter, input voltage range :60 to 90Vdc.

low voltage drive device is specially for small power solar pump inverter with
low current and high voltage.

Input voltage is DC60-90V or DC40-70 can work normally, output voltage is 5~7
times of input voltage. Output voltage changes according to input voltage so
that solar pump inverter can track the maximum power of PV array.

Model and Terminal Description of Booster Power Module

LV Low voltage voltage booster module
40-70 or 60-90 Minimum and maximum operating voltage
Lv40-70 220v inverter
Lv60-90 380v inverter

For example: the pump is 0.75kw 1AC 220V, solar panel power is 250w and open
circuit voltage is 30v, the single phase inverter suggested open circuit
voltage range is 350-400V DC.

Power : 0.75*1.5=1.125kw =1125w

1125/250 =4.5 (pcs)

Voltage: 350/30v = 12(pcs)

400/30v = 13(pcs)

The solar system is both power and voltage, from this case

Power: it needs 4 pcs, 2 in series by 2 parallels.

Voltage: voltage>power, the function of the booster unit is to increase the
voltage. Because the 220v boost unit is selected as LV 40-70, 2pcs in series
(60V) can be added, with a 6 times boost unit, the final voltage is 360V,
within the suggested open circuit voltage range.

Finally, the system needs 4pcs panels in total, 2 in series by 2 parallels,
with a 6 times booster unit.
Selection table

LV Low voltage
40-70 or 60-90 Minimum and maximum operating voltage
Lv40-70 220v inverter
Lv60-90 380v inverter

Shenzhen MICNO Electric Co., Ltd. is one of human machine interface
manufacturers. We provide Servo System, Spare Parts, boost regulator module,
boost step up power module, buck boost module, buck boost converter module,
boost module, boost converter module and so on. Want to know more? Please
contact us.

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