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Solar Grid Interactive Charge Controller

Solar Grid Interactive Charge Controller
Solar Grid Interactive Charge Controller
Product Code : 48
Product Description
Solar Grid Interactive Charge Controller:

     The GEESYS MPPT is well suited for both professional and consumer PV applications including automatic lighting control. Its charging process has been optimized for long battery life and improved system performance. This product is epoxy encapsulated for environmental protection, may be adjusted by the user via four settings switches or connection to a personal computer, and has an optional remote meter and battery temperature sensor 

Let's compare a PV module to a car engine. Its voltage is analogous to engine speed. Its ideal voltage is that at which it can put out maximum power. This is called its maximum power point. (It's also called peak power voltage, abbreviated Vpp). Vpp varies with sunlight intensity and with solar cell temperature. The voltage of the battery is analogous to the speed of the car's wheels. It varies with battery state of charge, and with the loads on the system (any appliances and lights that may be on). For a 12V system, it varies from about 11 to 14.5V.

In order to charge a battery (increase its voltage), the PV module must apply a voltage that is higher than that of the battery. If the PV module's Vpp is just slightly below the battery voltage, then the current drops nearly to zero (like an engine turning slower than the wheels). So, to play it safe, typical PV modules are made with a Vpp of around 17V when measured at a cell temperature of 25'C. They do that because it will drop to around 15V on a very hot day. However, on a very cold day, it can rise to 18V!

Main Functional Features of Solar Grid Interactive Charge Controllers:
  • Maximum Power Point Tracking of photovoltaic(PV) module
  • Hybrid controller, MPPT+SOC double intelligent control
  • 12V/24V/48V batteries voltage automatic identification
  • Low-loss MOSFET type transistors in parallel
  • Soft switching technology and synchronous rectification technology are applied
  • Multistage charging technology
  • PWM control
  • Load disconnection depending on SOC
  • Temperature compensation
  • Electronic protection functions:

  • Overcharge protection
  • Deep discharge protection
  • Short circuit protection of load and PV module
  • Overtemperature and overload protection
  • Reverse current protection at night
  • Reverse polarity protection of battery, load and PV module
  • Displays:

  • Multi-coloured LEDs indicate operating states
  • Real-time calendar display
  • LCD indicates real-time data

  • Operation:

    Solar Power -> Battery Power -> Grid Power

    Operation by the control buttons

    Manual load switch

     

 


 


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