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Application cases
500 Inverter applied in Ball Mill
日期：2019-07-01 浏览次数：4803
1.Customer Requirements:
An African customer, the rural power grid is underdeveloped, but the light is sufficient, the village has a total of 186 people, the per capita water is 0.1 m³ per day, and the water consumption is 18.6 m³ per day. In order to ensure drinking water in the village, it is necessary to drill wells and use a photovoltaic pump system to pump well water to the water tower. The local drilling depth is an average of 60 meters, the water tower is 2 meters above the ground, the pump head is 84 meters, and the water output is 4 m³ per hour. It runs 8 hours a day on a sunny day and can pump 32 m³ per day with a balance of 13.4 m³.
2.System diagram:
3.Program analysis:
The traditional scheme uses a pure sine wave inverter to drive the pump to run. The pump starting current may be up to 5 times. The 2.2 kW inverter is unbearable. It needs to be equipped with an inverter power of 11 kW and a photovoltaic module with a power of 11 kW. The cost is high.
Since our inverter is used for variable frequency start-up of the pump start, the starting current does not exceed 120%, and starts running in 1 second to full load 50Hz. The 2.2 kW inverter is fully capable of withstanding current surges and has a longer system life. It is therefore equipped with a 2.2 kW inverter and a 4 kW photovoltaic panel assembly. Save 60% of photovoltaic panel components. The price is cheaper and the effect is better.
4.Reference form:
|
Traditional scheme |
Our scheme |
||||||
|
Product Name |
Description |
Unit |
Quantity |
Product Name |
Description |
Unit |
Quantity |
|
Photovoltaic Module |
36V 320W |
PCS |
35 |
Photovoltaic Module |
36V 320W |
PCS |
16 |
|
PV module bracket |
Ordinary bracket |
PCS |
35 |
PV module bracket |
Ordinary bracket |
PCS |
16 |
|
Photovoltaic controller |
96V 11kW |
PCS |
1 |
Photovoltaic controller |
No need |
PCS |
0 |
|
Battery |
12V 200mah |
PCS |
1 |
Battery |
No need |
PCS |
0 |
|
Inverter |
96V 11kW |
PCS |
1 |
Inverter |
380V 2.2kW |
PCS |
1 |
|
Pump |
380V 2.2 kW Head 84 m Flow 4 m3/h |
PCS |
1 |
Pump |
380V 2.2 kW Head 84 m Flow 4 m3/h |
PCS |
1 |
|
Cable |
4 square BVR flame retardant cable |
M |
200 |
Cable |
4 square BVR flame retardant cable |
M |
200 |
|
Water pipes and fittings |
Water pipes and connecting parts |
M |
80 |
Water pipes and fittings |
Water pipes and connecting parts |
M |
80 |
5.Usage:
After installing the PV pump system, it fully meets the basic water consumption in the village during the dry season. At 6 o'clock in the morning on sunny days, you can start running after half an hour, and run at 8 o'clock to full load 50Hz. It stopped running after 5 o'clock in the evening, running for 8 hours at full load every day, and running at low frequency for 1.5 hours. The pumping volume is higher than the expected standard.
6.Part of the scene picture:
