Product Introduction
With the advancement of photovoltaic technology, photovoltaic water supply systems have increasingly become the top - choice solution for water - supply issues in areas lacking electricity or with unstable power supply. This is due to their advantages like easy installation, low maintenance and operation costs, and zero carbon emissions. Dongfang Pump Industry is dedicated to promoting energy conservation and emission reduction, independently developing photovoltaic pumps and unit equipment, which can greatly cut down electricity expenses for customers and yield favorable environmental benefits.
Animal Husbandry Farmland Irrigation
Photovoltaic Pump Water Supply System
- Composition of the photovoltaic pump water supply system: It is composed of solar panels, a frequency converter control system, a pump, a ground - mounting system, and accessories.
Photovoltaic Pump Water Supply System Solutions
- Track Maximum Output Power
It can detect the power - generation voltage of photovoltaic panels in real - time and track the highest voltage and current values, enabling the system to output at maximum power and thus maximizing the efficiency of photovoltaic panels.
- Automatic Switching between Photovoltaic and Power - Frequency Input
It allows manual or automatic selection of power - grid power - frequency or photovoltaic power supply, achieving 24 - hour uninterrupted water supply.
- Energy - Saving Mode
When sunlight is sufficient, the frequency converter can automatically switch to photovoltaic power supply.
- Controllable Water Volume
It can be connected to a water - level switch, which enables automatic operation or shutdown when water is in short supply or full.
- High Battery Panel Conversion Efficiency
It can achieve a conversion efficiency of up to 98.4%.
- Adjustable Installation System Angle
Adjust the installation angle of photovoltaic panels according to different regions to maximize the capture of solar energy.
Configuration Table of Photovoltaic Pump Water Supply System
| Photovoltaic Pump Control System |
Pump Specification |
Frequency Conversion Control Box System |
Photovoltaic Panel Specification |
Number of Photovoltaic Panels |
Area of a Single Photovoltaic Panel |
Total Area of Photovoltaic Panels |
Power of Photovoltaic Panels |
Bracket (Single - row) |
Bracket (Double - row) |
| ECS - 0.75PV |
0.75kW/220V |
1.5kW |
550W, 49.7V |
4 |
2.6117 |
10.45 |
2200 |
Customized according to the project |
| ECS - 1.5PV |
1.5kW/220V |
2.2kW |
550W, 49.7V |
8 |
2.6117 |
20.89 |
4400 |
| ECS - 4PV |
4kW/380V |
5.5kW |
550W, 49.7V |
14 |
2.6117 |
36.56 |
7700 |
| ECS - 7.5PV |
7.5kW/380V |
11kW |
550W, 49.7V |
28 |
2.6117 |
73.13 |
15400 |
| ECS - 11PV |
11kW/380V |
18.5kW |
550W, 49.7V |
42 |
2.6117 |
109.69 |
23100 |
| ECS - 18.5PV |
18.5kW/380V |
22kW |
550W, 49.7V |
56 |
2.6117 |
146.26 |
30800 |
|
Instructions for the Configuration Table
- A larger area of a single photovoltaic panel leads to a lower configuration cost for the same power. The 550W/49.7V battery panel is recommended. Photovoltaic panels can be grid - connected or off - grid. Grid - connected panels are selected if feedback to the power grid is required, and off - grid panels are preferred for agricultural irrigation.
- The rated power of the selected frequency converter should be one level higher than that of the pump to ensure the normal operation of the pump.
- The standard installation methods for solar panels include single - row or double - row. Other installation methods need to be customized.
Control Box Wiring Diagram
| Power Supply Mode |
Photovoltaic power supply
Automatic switching between photovoltaic power supply and power - frequency power supply (photovoltaic power supply is preferred) |
| Input Voltage Range |
220V series: 250V - 350VDC
380V series: 450V - 750VDC |
| Power Range |
380V: 0.75kW - 22kW
220V: 0.75kW - 2.2kW |
| Output Frequency Adjustment Mode |
In the general frequency converter mode, it supports multiple frequency source combinations (including 4 - 20mA feedback signal)
In the dedicated photovoltaic pump mode, it can automatically adjust the output frequency |
| Control Mode |
V/F control, SVC vector control |
| Overload Capacity |
150% of rated current for 60s/60s |
| Starting Torque |
0.5Hz/150% (SVQ) |
| V/F Curve |
Linear type, multi - point type, N - th power type |
| Operating Environment |
Temperature: -10°C - 50°C
Humidity: < 95%RH |
| Communication Function |
Built - in RS - 485 |
| Special Function |
Maximum Power Point Tracking (MPPT) |
| Matching Load |
The load capacity of the power equipment is less than the capacity of the photovoltaic panel power supply |
| Protection Function |
Over - current protection, over - voltage protection, under - voltage protection, over - heat protection, over - heat protection, phase - loss protection, etc. |
Photovoltaic Bracket - Galvanized Steel
Features of Ground Mounting System (Galvanized Steel)
- Suitable for ground or flat rooftops.
- Bracket components can be placed horizontally or vertically. The bracket supports customized and modular installation, and can be packaged in flat form for logistics transportation.
- The bracket is applicable in extreme weather and high - salt - fog coastal areas, and has obtained certifications such as SGS and MCS.
Bracket Parameters (Galvanized Steel)
- Bracket type: Fixed bracket
- Tilt angle: 0 - 50°
- Bracket height: <3m
- Component orientation: Horizontal/vertical placement
- Design standard: AS/NZS 1170/ASCE 7 - 10
- Snow load: <300mm
- Wind load: <120 Km/H
- Structural material: Galvanized steel or galvalume steel
- Note: The ground mounting system can be customized for special environmental conditions.
Photovoltaic Bracket - Galvalume
Features of Ground Mounting System (Galvalume)
- Some parts of the bracket are pre - assembled, which saves outdoor construction work and reduces costs.
- Bracket components can be placed horizontally or vertically. The bracket supports customized and modular installation, and can be packaged in flat form for logistics transportation.
- Galvalume is characterized by light weight, convenient transportation, and low cost.
- The bracket material can be selected as galvanized steel or galvalume. The driven - pile bracket is suitable for installation in plains or hills, eliminating on - site foundation construction, making it an optimal choice for agricultural irrigation.
Photovoltaic Energy Storage System
The energy storage system is an integrated energy solution composed of an inverter and a battery. During the day, the energy from the solar panels is stored in the battery, and the energy of the battery is converted by the inverter to supply power to the whole house. The excess energy stored in the battery during the day can be used at night. If more energy storage is needed, lithium - iron phosphate batteries can be added. It provides three operation modes to meet different user needs, including: PV power supply priority, charging power supply priority, and load power supply priority. It can monitor electricity consumption and charging time during peak/non - peak hours.
| Inverter Specification |
3 - 10kW |
| Solar Input (DC) |
|
| Rated DC Voltage / Maximum DC Voltage |
360VDC/500VDC |
| Start - up Voltage / Initial Feedback Voltage |
116VDC/150VDC |
| Maximum Power Point (MPP) Voltage Range |
120VDC - 450VDC |
| Number of Maximum Power Point Trackings / Maximum Input Current |
2/2X13A |
| Grid Output (AC) |
|
| Rated Output Voltage |
208/220/230/240VAC |
| Output Voltage Range |
184 - 264.5VAC |
| Maximum Output Current |
23.9A |
| Maximum Conversion Power (DC/AC) |
96% |
| European - Standard Efficiency @ Rated Voltage |
95% |
| AC Input |
|
| AC Start - up Voltage / Automatic Restart Voltage |
120 - 140VAC/180VAC |
| Allowable Input Voltage Range |
170 - 280VAC |
| Maximum AC Input Current |
40A |
| Battery - Simulated Output (AC) |
|
| Rated Output Voltage |
208/220/230/240VAC |
| Efficiency (DC to AC) |
93% |
| Battery & Charger |
|
| Rated DC Voltage |
48VDC |
| Maximum Charging Current |
100A |
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