PUMPMAN solar pumping system consists of solar pumping inverter, pump and PV array. Consider that storing water is more efficient than storing electricity, the system is designed to directly drive the pump without battery which can reduce the construction and operating cost and routine maintenance effectively.The PV array consists of multiple solar panels connected in series/parallel, which can supply the whole system as power source by converting the absorbed solar radiation energy to the electrical energy.Solar pumping inverter can implement the control of the whole system operation, which drives the pump by converting DC power produced by the PV array to AC power. This inverter can adjust the output frequency according to the solar irradiation intensity in real time to implement the MPPT (Maximum Power Point Tracking).

The pump driven by a 3-phase AC motor draws water from deep-well or river. The pumped water is then fed into reservoir or water tank, or connected to the irrigation system or fountain system directly. All of centrifugal pump, mixed-flow pump, and deep-wellpump can be utilized.

Solar Pumping System optimization of Single Pump System:

A single pump system denotes that only a pump and the matched PV array and a solar pumping inverter are configured in the system. The goal of system optimization is to reduce the number of PV modules to be utilized as could as possible while meeting the requirements of water head and consumption. The pump rotational speed can be regulated according to the variation of solar irradiation: when the solar radiation intensity reaches the peak, the pump runs at its rated speed, and the output power is close to the maximum power of PV array; when the solar radiation intensity is relatively weak, the pump runs with the low speed based on the MPPT algorithm; when the pump speed is so low that no water flow can be available, the system stops working. Therefore, the solar pumping system is actually different from traditional pumping system, for which the system configuration needs to be optimized according to the requirements of water head, daily water consumption, and the local solar radiation levels.

  • Determine the optimal average daily working time and the range of pump speed;
  • Select the optimal water head and rated power of the pump;
  • Determine the maximum power of PV array, the recommended operating voltage and the connection mode.

Model

Maximum Input DC Voltage(V)

Recommended MPP Voltage(V)

Rated Output Current (A)

Output Frequency (Hz)

Output Voltage (V)

PM 750L

430

280-350

5

0-50

3PH220V

PM 1500L

430

280-350

7

0-50

3PH220V

PM 2200L

430

280-350

11

0-50

3PH220V

PM 3700H

750

500-600

9

0-50

3PH380V

PM 5500H

750

500-600

13

0-50

3PH380V

PM 7500H

750

500-600

18

0-50

3PH380V

PM 11000H

750

500-600

24

0-50

3PH380V

PM 15000H

750

500-600

30

0-50

3PH380V

PM 18000H

750

500-600

39

0-50

3PH380V

PM 22000H

750

500-600

45

0-50

3PH380V

 

Solar Pumping Inverter:

PUMPMAN Solar pumping inverter can implement the control of the whole system operation, which drives the pump by converting. DC power produced by the PV array to AC power. This inverter can adjust the output frequency according to the solar irradiation intensity in real time to implement the MPPT (Maximum Power Point Tracking).

  • Compatible with 3-phase induction motors;
  • Dynamic VI maximum power point tracking (MPPT) algorithm and optimized SPWM control method. Faster speed of response and good stability;
  • Fully automatic operation. Free setting speed range based on practical situation of the system. Storage capacity for 8 years operational data;
  • Intelligent power module used in main circuit. High reliability. 98% conversion efficiency;
  • Full motor protection functions. Optional water level detecting and control circuit for overflow and idle running prevention;
  • Anodized aluminum case. IP55 protection class. Ambient temperature: -10 to +50o C.