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    Solar pumping inverter

    Solar pumping inverter

    Main Parameter:




    1.1 Introduction of Solar Pumping System 
     
    Solar pumping system becomes more and more popular, it can be applied to daily use (underground water), agriculture irrigation, forestry irrigation, desert control, pasture animal husbandry, water supply for islands, wastewater treatment engineering, and so on. In recent years, with the promotion of the utilization of new energy resources, solar pumping  systems are more and more used  in municipal engineering, city centre squares, parks, tourist sites, resorts and hotels, the landscapes and fountain systems  in the residential  areas. 
     
    This  system  is  composed  of  a  solar  array,  a  pump  and  a  solar  pumping  inverter. Based  on  the  design philosophy  that  it  is  better  to  store water  than  electricity,  there  is  no  energy  storing  device  such  as  store battery in the system. 





    The  solar  array, an  aggregation of many  solar modules  connected  in  series  and parallel,  absorbs  sunlight radiation  and  converts  it  into  electrical  energy,  providing  dynamical  water  for  the  whole  system.  The pumping  inverter  controls  and  adjusts  the  system  operation  and  converts  the DC produced by  solar  array into AC to drive the pump, and adjust the output frequency in real-time according to the variation of sunlight intensity to realize the maximum power point tracking (MPPT). The pump, drive by 3-phase AC motor, can draw water  from  the deep wells or  rivers  and  lakes  to pour  into  the  storage  tank  or  reservoir, or directly  connect  to  the  irrigation  system,  fountain  system,  ect.  According  to  the  actual  system  demand  and installation  conditions,  different  types  of  pump  such  as  centrifugal  pump,  axial  flow  pump, mixed-flow pump  or deep-well pump can be used. 


    1.2 Inverter Features 


    a) Adopting  the  proposed  dynamic  VI  maximum  power  point  tracking  (MPPT)  control  method;  Fast response  speed  and  stable    operation;  Better  than  the  conventional  methods  which  may  lead  to  the problems  including    poor  tracking  performance,  unstable  operation  or  even  damaging  water  hammer effects when the irradiation    on the array change rapidly. 
    b) Digital control with full automatic running, data storage and complete protective functions (overload, over voltage, under voltage, over h-eat, reverse polarity, thunder, over flow and dry running). 
    he main circuit adopts intelligent power module (IPM), with high reliability and high efficiency 98%. nique design of  aluminum  alloy with good cooling  and  shielding, LCD display  (43*29mm)  and keys,  easy operation, good view through LCD when setting parameter, feel comfortable. 
    c)  Protection degree IP41,working temperature: -10~+50℃. 
    d)  Inverter connects  to city power when  there  is no  sunshine  to keep  system pumping water  is available (optional). 
    e)  Low voltage drive device is our patent right product, can be used in small solar pumping system to save 
    the quantity of solar panels.


    Solar pumping system specification




    Caution: Please be sure to select the appropriate model according to the PV array and motor load.
     
    Caution: High-power machine model uses multiple-channel DC input structure. The input power in  the
    above table indicates total multi-channel input power.
     

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