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: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: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:Three-phase photovoltaic inverter grid, the use of phase-locked loop is what?
In addition to the function of converting DC current into alternating current, the inverter also has the maximum output tracking function (MPPT), overvoltage protection, short circuit protection, island protection, overheat protection, overload protection and DC grounding
Q:The working principle of photovoltaic grid - connected inverter
Inverter will be converted into alternating current DC, if the DC voltage is low, then through the AC transformer boost, that is, the standard AC voltage and frequency. For large-capacity inverter, because the DC bus voltage is high, AC output generally does not require transformer boost that can reach 220V, in the small and medium capacity of the inverter, because the DC voltage is low, such as 12V, 24V, It is necessary to design a boost circuit.
Q:What is the difference between a PV grid-connected inverter and an off-grid inverter?
Grid-connected inverter will be directly sent to the power grid, so to track the frequency of the grid, phase, the equivalent of a current source. Of course, there are some inverters called low-voltage crossing ability, you can do PQ adjustment
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 PV inverter starting voltage
Inverter is a kind of semiconductor device composed of power adjustment device, mainly used for DC power into AC power. Generally consists of boost circuit and inverter bridge circuit. The boost circuit boosts the DC voltage of the solar cell to the DC voltage required for the inverter output control. The inverter bridge circuit converts the boosted DC voltage to the AC voltage of the common frequency. The inverter is mainly composed of a switching element such as a transistor, and turns the DC input into an AC output by repeatedly turning ON-OFF the switching element in a regular manner. Of course, it is not practical to simply output the inverter output waveforms from the on and off circuits
Q:After the PV inverter, how to achieve the same period before the network?
Grid simulator: analog power grid, normal and abnormal conditions, overvoltage, undervoltage, over frequency, under frequency, sudden power failure, etc.
Q:In a photovoltaic grid-connected project, the role of the inverter is to convert the voltage into AC 220V or 380V for the grid, since the transformer will raise the voltage again
Unless the power is not issued for their own use, is to be sent to other areas, it needs to boost, such as the western region of those large power stations
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

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