High Power MPPT Solar Charge Controller Off-grid Solar Power Systems

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1 pc
Supply Capability:
1000 pc/month

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High Power MPPT Solar Charge Controller

GSC Series modular MPPT solar controller unit is a complete solar energy conversion, tracking, protection combined systems, this series product is developed depending on the needs of green power by EAST company. The solar energy collected by the PV panel is transferred into stable DC power output, advanced Maximum Power Point Tracking Technology (MPPT)and intelligent battery management system,intelligent monitoring system can be connected to PC by RS232/USB/RS485,remote monitoring by SNMP. Suitable for a variety of off-grid solar power systems.

Efficient and stable,maximize the output power
● High power modular design,can parallel 8 pcs,maintenance is simple and fast, efficient and reliable system for easy expansion.
● High speed DSP the core control system and MPPT Maximum Power Point Tracking Technology,ensuring maximum output power of the system, improving the power generation efficiency of photovoltaic panels.
● Advanced multi-level control technology, switching losses smaller, more efficient.
● Professional cooling duct design, effectively discharge machine heat, to ensure stable operation of the controller
● Multiple input for the system, suitable for a variety of applications, roof, slope system.

Perfect protection design, safe and reliable
● Foolproof design is used in the system,ensure modules hot-swappable safety, providing safety operating for modules.
● PV input/output over/under voltage、PV reverse 、output anti-anti-irrigation、over temperature and other protections.

Smart battery management system
● Best charging mode can be used depending on battery type and capacity, to extend battery life.
● Over charging and over discharging protections.

Unattended and intelligent monitoring:
● After battery low voltage and automatically shut down, PV comes back,system will auto restart and charge the battery.
● RS232、USB and RS485 bus interface are available, real-time monitoring, testing can be done by communicating with PC,
SNMP(optional)net system is also available for remote real-time monitoring.




PV Input Range


Single Max Input Power



Battery Numbers



Max Charging Current

55-120pcs can be set(2V per pcs)

165-192pcs can be set(2V per pcs)

Max Charging Current


Equalizing Charging Voltage

(each one 2.4V)±1%

Float Charging Voltage

(each one 2.3V)±1%

Temperature Compensation

The voltage increases 2mV while temperature decrease 1℃

Shared Parameters

Max Efficiency

> 98%

Static Losses

< 5% (system rated current)

MPPT Accuracy


Dynamic Response

25%-50%-25% or 50%-75%-50% load change 3ms




Forced ventilation (fan speed changes with load)




PV reverse、BUS over voltage、output over voltage、output reverse、

PV over / under voltage


RS232 / RS485 / SNMP card(optional)

IP Level


Operating Temperature

From -20℃ to +45℃


0-95% (non-condensing)

Storage Temperature

From -25℃ to +85℃


1000m with rated power (increase 100m, reduce power 1%) Max.4000m

Dimensions (WxDxH mm)


Packing Dimensions (WxDxH mm)



Frame: 80kg ; MPPT power module: 5kg/unit

·         Q. What is an UPS and What it is for ?

An uninterruptible power supply (UPS) is a device that allows your computer or telephone switch or critical equipement to keep running for at least a short time or longer time when the primary power source is lost. It also provides protection from power surges, spikes, brownouts, interference and other unwanted problems on the supported equipment.

·         Q. How long the UPS to run when power goes?

This can take 3 paths.
1.You can pick a UPS that is rated for pretty much the full VA you need so it will be running at 100% of capability and will thus last 'n' minutes.
2.You can pick a UPS that is rated at a much higher VA value than you really need so, for example, is running at 50% of capability and will thus last for longer than the UPS from option 1.
3You can use extra external battery packs to run for longer. If charging capability allows, the more and the bigger batteries you take with, the longer time UPS runs. 
or using a generator after about 6 hours, it will be more cost-effective, with a short runtime UPS to bridge the generator start-up gap.

High Power MPPT Solar Charge Controller Off-grid Solar Power Systems

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Q:What is the PV inverter starting voltage
The inverter not only has the function of direct current conversion, but also has the function of maximizing the performance of the solar cell and the system fault protection function. (With grid system), automatic voltage adjustment function (for network connection), DC detection function (for network connection), DC grounding detection (for network connection), automatic power control function Function (for grid connection). Here is a brief introduction to automatic operation and shutdown function and maximum power tracking control function.
Q:Photovoltaic grid-connected inverter without DC emc how will happen
When solar or other light illuminates the PN junction of the semiconductor, a voltage (called a photogenerated voltage) occurs on both sides of the PN junction. This phenomenon is the famous photovoltaic effect.
Q:Grid-connected inverter is generally divided into photovoltaic power generation grid-connected inverter, wind power grid-connected inverter, power equipment and grid-connected inverter and other power generation equipment power generation inverter.
Grid-connected inverter is generally used with large-scale photovoltaic power plant system, a lot of parallel PV string is connected to the same set of inverter DC input, the general power of the use of three-phase IGBT power module, power
Q:What is the difference between a PV inverter and a solar inverter?
The main function of photovoltaic grid-connected inverter is to convert the DC power of the solar PV module into the same frequency as the sinusoidal AC power of the grid (the grid is generally AC power grid, DC can not be directly connected)
Q:What are the methods of photovoltaic grid-connected inverter control
and can set the dead time between the upper and lower arms, the use of INTEL 80C196MC to achieve sine wave output circuit, 80C196MC to complete the sine wave signal, AC output voltage, to achieve regulation. Circuit output generally use LC circuit filter high frequency wave, get pure sine wave.
Q:Is the grid side of the grid and the inverter?
Grid-type system power transmission sequence: photovoltaic panels> relays> inverters> relays> electricity load + power grid (both in parallel).
Q:The function of photovoltaic grid - connected inverter
In general, single-phase h-bridge is a common configuration of dc / ac-level, but can also be used in three-phase and other configurations.
Q:What is the difference between a PV grid-connected inverter and an off-grid inverter?
Grid-connected inverter does not need energy storage, but the energy can not be controlled, the number of photovoltaic sent to send online how much, simply do not want people to.
Q:Generally a large grid-connected photovoltaic power plant will have several inverters
Group is the use of a number of grid-connected inverter and grid-connected AC power grid, the advantage is the loss of small, low cost of the cable (because the PV cable is more expensive), eliminating the cost of the convergence box, and multiple
Q:Photovoltaic grid-connected inverter problem
But Baidu Encyclopedia clearly pointed out: the zero line is the secondary side of the transformer leads the neutral point of the line, and the phase line constitutes a circuit for power supply equipment.

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