30A Tracer mppt solar charge controller 30amp 12v 24v auto work EPEVER Tracer3210CN

 

Tracer3210CN

—— Maximum Power Point Tracking Solar Charge Controller

 

  

 

 Package including:

1. 1pcs mppt solar charge controller 30A  
2. 1pcs MPPT CONTROLLER User Manual 

 Tracer-CN/EM1 series adopts common negative design and advanced MPPT control algorithm, and introduces original dry contact design to achieve the switch of external equipment. The integration design not only replaces traditional electrical design using external relay, what is more can achieve multiple control modes and working modes, it can be widely used in household system, field monitoring and communication station etc.

Feature:

Ÿ Original dry contact design, achieve the switch of external equipment

Ÿ Multiple dry contact control mode, local, remote and cross- network

Ÿ Multiple dry contact working modes: manual control, light ON/OFF, light ON+timer and time control

Ÿ High tracking efficiency no less than 99.5%

Ÿ Peak conversion efficiency of 97.5%, full-load efficiency of 96%

Ÿ Accurately recognizing and tracking of multiple power points.

Ÿ Battery temperature compensation function

Ÿ Real-time energy statistics function

Ÿ RS485 port with industrial standard MODBUS open architecture

Ÿ Fully programmable function via PC software or remote meter

Ÿ Support software upgrade.

 

Electrical Parameters                                                                 

Item                Model	Tracer2210CN	Tracer3210CN
Nominal system  voltage	12/24VDC Auto
Battery input voltage range	9V~32V
Rated charge current	20A		30A
Max. PV input power	260W/12V,520W/24V		390W/12V,780W/24V
Max. PV open circuit voltage	92V(at 25C environment temperature) 100V(at minimum operating environment temperature)
MPP Voltage range	(Battery voltage+2V)~72V
Dry contact control range	30VDC/1A
Communication Voltage	12VDC
Battery Type	Sealed(Default)/Gel/Flooded/User
Self-consumption	20mA/12V; 23mA/24V
Temperature compensate coefficient	-3mV/C/2V
Working environment temperature	-35C~+55C
Enclosure	IP20
Humidity	<95% (N.C.)
Grounding	Common negative
Dimension	173mm×150mm×79.9mm		173mm×163mm×86m
Mounting dimension	Φ5mm
Mounting hole size	141mm*141mm		141mm*154mm
Terminal	8AWG/10mm2		6AWG/16mm2
Power Terminals	1.21kg/1.08kg		1.46kg/1.33kg

Characteristics

 

1.3 Optional Accessories

1) Remote Temperature Sensor (Model:RTS300R47K3.81A)

Acquisition of battery temperature for undertaking temperature compensation of control parameters, the standard length of the cable is 3m (length can be customized). The RTS300R47K3.81A connects to the port  on the controller.

NOTE: Unplug the RTS, the temperature of battery will be set to a fixed value 25ºC.

2) USB to RS-485 converter cable (Model:CC-USB-RS485-150U-3.81)

USB To RS-485 converter cable is used to monitor each controller on the network using Solar Station PC software. The length of cable is 1.5m. The cable connects to the port  on the controller.

3) OTG cable (Model: OTG-12CM)

The USB To RS-485 converter cable and the OTG cable are used to view and modify the working mode and the parameters using the APP software. The USB To RS-485 converter cable connects to the port  on the controller.

 

Maximum Power Point Tracking Technology

Due to the nonlinear characteristics of solar array, there is a maximum energy output point (Max Power Point) on its curve. Traditional controllers, with switch charging technology and PWM charging technology, can’t charge the battery at the maximum power point, so can’t harvest the maximum energy available from PV array, but the solar charge controller with Maximum Power Point Tracking (MPPT) Technology can lock on the point to harvest the maximum energy and deliver it to the battery.

The MPPT algorithm of our company continuously compares and adjusts the operating points to attempt to locate the maximum power point of the array. The tracking process is fully automatic and does not need user adjustment.

As the Figure 1-2, the curve is also the characteristic curve of the array; the MPPT technology will ‘boost’ the battery charge current through tracking the MPP. Assuming 100% conversion efficiency of the solar system, in that way, the following formula is established:

Normally, the VMp is always higher than VBat, Due to the principle of conservation of energy, the IBat is always higher than IPV. The greater the discrepancy between VMp &VBat, the greater the discrepancy between IPV& IBat. The greater the discrepancy between array and battery, the bigger reduction of the conversion efficiency of the system, thus the controller’s conversion efficiency is particularly important in the PV system.

Figure 1-2 is the maximum power point curve, the shaded area is charging range of traditional solar charge controller (PWM Charging Mode), it can obviously diagnose that the MPPT mode can improve the usage of the solar energy resource. According to our test, the MPPT controller can raise 20%-30% efficiency compared to the PWM controller. (Value may be fluctuant due to the influence of the ambient circumstance and energy loss.)

Figure 1-2 Maximum Power Point Curve

 

In actual application, as shading from cloud, tree and snow, the panel maybe appear Multi-MPP, but in actually there is only one real Maximum Power Point. As the below Figure 1-3 shows:

Figure 1-3 Multi-MPPT Curves

 

If the program works improperly after appearing Multi-MPPT, the system will not work on the real max power point, which may waste most solar energy resources and seriously affect the normal operation of the system. The typical MPPT algorithm, designed by our company, can track the real MPP quickly and accurately, improve the utilization rate of the array and avoid the waste of resources.

 

 

1.5 Battery Charging Stage 

The controller has a 3 stages battery charging algorithm (Bulk Charging, Constant Charging and Float Charging) for rapid, efficient, and safe battery charging.

 

Figure 1-4Battery changing stage Curve

A) Bulk Charging

In this stage, the battery voltage has not yet reached constant voltage (Equalize or Boost Voltage), the controller operates in constant current mode, delivering its maximum current to the batteries (MPPT Charging).

B) Constant Charging

When the battery voltage reaches the constant voltage setpoint, the controller will start to operate in constant charging mode, this process is no longer MPPT charging, and in the meantime the charging current will drop gradually, the process is not the MPPT charging. The Constant Charging has 2 stages, equalize and boost. These two stages are not carried out constantly in a full charge process to avoid too much gas precipitation or overheating of battery.

 

 Model: Tracer3210CN 

Solar Module MPP Voltage(17V, 30V, 36V) / Nominal System Voltage(12V)  

 Solar Module MPP Voltage(36V, 52V) / Nominal System Voltage(24V)

 

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