The diagram of the system
System configuration for reference
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Solar Panel
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Monocrystalline 390W
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64
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16pcs in series, 4groups in parallel
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Solar inverter
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384VDC 40KW
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1
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WD-403384
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|
Solar Charge Controller
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384VDC 100A
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1
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MPPTSolar Charge Controller
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Lead acid battery
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12V200AH
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64
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32pcs in series, 2groups in parallel
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Battery connecting cable
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25mm² 60CM
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63
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connection between batteries
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solar panel mounting bracket
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Aluminum
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8
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Simple type
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PV combiner
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2in1out
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2
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Specifications: 1000VDC
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Lightning protection distribution box
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without
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0
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|
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battery collecting box
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200AH*32
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2
|
|
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M4 plug (male and female)
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60
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60 pairs 一in一out
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PV Cable
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4mm²
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200
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PV Panel to PV combiner
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PV Cable
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10mm²
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200
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PV combiner--MPPT
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Battery cable
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25mm² 10m/pcs
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62
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Solar Charge Controller to battery and PV combiner to Solar Charge Controller
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The ability of the system for reference
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Electrical Appliance
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Rated Power(pcs)
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Quantity(pcs)
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Working Hours
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Total
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LED bulbs
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30W
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20
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12Hours
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7200Wh
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|
Mobile phone charger
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10W
|
5
|
5Hours
|
250Wh
|
|
Fan
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60W
|
5
|
10Hours
|
3000Wh
|
|
TV
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50W
|
2
|
8Hours
|
800Wh
|
|
Satellite dish receiver
|
50W
|
2
|
8Hours
|
800Wh
|
|
Computer
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200W
|
2
|
8Hours
|
3200Wh
|
|
Water pump
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600W
|
1
|
2Hours
|
1200Wh
|
|
Washing machine
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300W
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2
|
2Hours
|
1200Wh
|
|
AC
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2P/1600W
|
5
|
10Hours
|
62500Wh
|
|
Microwave oven
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1000W
|
1
|
2Hours
|
2000Wh
|
|
Printer
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30W
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1
|
1Hours
|
30Wh
|
|
A4 copier (printing and copying combined)
|
1500W
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1
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1Hours
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1500Wh
|
|
Fax
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150W
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1
|
1Hours
|
150Wh
|
|
Induction cooker
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2500W
|
1
|
2Hours
|
4000Wh
|
|
Rice Cooker
|
1000W
|
1
|
2Hours
|
2000Wh
|
|
Refrigerator
|
200W
|
2
|
24Hours
|
3000Wh
|
|
Water heater
|
2000W
|
1
|
5Hours
|
10000Wh
|
|
|
|
|
Total
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102830W
|
Key Components of 40kw off grid solar power system
1. Solar panel
Feathers:
● Large area battery: increase the peak power of components and reduce the system cost.
● Multiple main grids: effectively reduce the risk of hidden cracks and short grids.
● Half piece: reduce the operating temperature and hot spot temperature of components.
● PID performance: the module is free from attenuation induced by potential difference.
2. Battery
Feathers:
Rated Voltage: 12v*32PCS in series*2 sets in parallel
Rated Capacity: 200 Ah (10 hr, 1.80 V/cell, 25 ℃)
Approximate Weight(Kg,±3%): 55.5 kg
Terminal: Copper
Case: ABS
● Long cycle-life
● Reliable sealing performance
● High initial capacity
● Small self-discharge performance
● Good discharge performance at high-rate
● Flexible and convenient installation, esthetic overall look
Also you can choose 384V400AH Lifepo4 lithium battery:
Features:
Nominal Voltage: 384v 120s
Capacity: 400AH/153.6KWH
Cell type: Lifepo4, pure new, grade A
Rated Power: 150kw
Cycle time: 6000 times
3. Solar inverter
Feature:
● Pure sine wave output;
● High efficiency toroidal transformer lower loss;
● Intelligent LCD integration display;
● AC charge current 0-20A adjustable; battery capacity configuration more flexible;
● Three types working modes adjustable: AC first, DC first, energy-saving mode;
● Frequency adaptive function, adapt to different grid environments;
● Built-in PWM or MPPT controller optional;
● Added fault code query function, facilitate user to monitor the operation state in real time;
● Supports diesel or gasoline generator, adapt any tough electricity situation;
● RS485 communication port/APP optional.
Remarks: you have many options of the inverters for your system.different inverters with different features.
4. Solar Charge Controller
384v100A MPPT controller bulit in inverter
Feature:
● Advanced MPPT tracking, 99% tracking efficiency. Compared with PWM, the generating efficiency increase near 20%;
● LCD display PV data and chart simulates power generation process;
● Wide PV input voltage range, convenient for system configuration;
● Intelligent battery management function, extend battery life;
● RS485 communication port optional.
What service we offer?
1. Design service.
Just let us know the features you want, such as the power rate, the applications you want to load, how many hours you need the system to work etc. We will design a reasonable solar power system for you.
We will make a diagram of the system and the detailed configuration.
2. Tender Services
Assist guests in preparing bid documents and technical data
3. Training service
If you a new one in the energy storage business, and you need a training, you can come our company to learn or we send technicians to help you to train your stuff.
4. Mounting service& maintenance service
We also offer mounting service and maintenance service with seasonable & affordable cost.
5. Marketing support
We give big support to the customers who agent our brand "Dking power".
we send engineers and technicians to support you if necessary.
we send certain percent extra parts of some of the products as replacements freely.
What is the minimum and max solar power system you can produce?
The minimum solar power system we produced is around 30w, such as solar street light. But normally the minimum for home use is 100w 200w 300w 500w etc.
Most of people prefer 1kw 2kw 3kw 5kw 10kw etc for home use, normally it is AC110v or 220v and 230v.
The max solar power system we produced is 30MW/50MWH.
How is your quality?
Our quality is very high,because we use very high quality materials and we make rigorous tests of the materials. And we have very strict QC system.
Do you accept customized producing?
Yes. just tell us what you want. We customized R&D and producing energy storage lithium batteries, low temperature lithium batteries, motive lithium batteries, off high way vehicle lithium batteries, solar power systems etc.
What is the lead time?
Normally 20-30 days
How you guarantee your products?
During the warranty period, if it is the product reason, we will send you replacement of the product. Some of the products we will send you new one with next shipping. Different products with different warranty terms. But before we sending, we need a picture or video to make sure it is the problem of our products.
workshops
Cases
400KWH (192V2000AH Lifepo4 and solar energy storage system in Philippines )
200KW PV+384V1200AH (500KWH) solar and lithium battery energy storage system in Nigeria
400KW PV+384V2500AH (1000KWH) solar and lithium battery energy storage system in America.
Certifications
Composition and working principle of solar photovoltaic power supply system
Composition of solar power supply system
The solar power generation system is composed of solar battery pack, solar controller and storage battery (pack). If the output power supply is AC 220V or 110V and it needs to be complementary to the mains, the inverter and the mains intelligent switcher should also be configured.
1. Solar cell array (solar panel)
This is the core part of the solar photovoltaic power generation system. Its main role is to convert solar photons into electrical energy, so as to promote the load work. Solar cells are divided into monocrystalline silicon solar cells, polycrystalline silicon solar cells and amorphous silicon solar cells. Monocrystalline silicon battery is the most commonly used battery due to its durability, long service life (generally up to 20 years) and high photoelectric conversion efficiency.
2. Solar charging controller
Its main work is to control the state of the whole system and protect the overcharge and over discharge of the battery. It also has a temperature compensation function in places where the temperature is particularly low.?
3. Solar deep cycle battery pack
As the name implies, the battery stores electricity. It mainly stores the electric energy converted from the solar panel. It is generally a lead-acid battery and can be recycled for many times.
In the whole process monitoring system, some equipment need to provide 220V, 110V AC power supply, while the direct output of solar energy is generally 12 VDc, 24 VDc, 48 VDc. Therefore, in order to provide power for 22VAC and 11OVAC equipment, DC/AC inverters must be added to the system to convert the DC power generated in the solar photovoltaic power generation system into AC power.
Principle of solar power generation
The simplest principle of solar power generation is what we call chemical reaction, that is, solar energy is converted into electrical energy. This conversion process is a process in which photons of solar radiation energy are converted into electrical energy through semiconductor materials. It is usually called the "photovoltaic effect". Solar cells are made of this effect.
As we know, when the sunlight shines on the semiconductor, some photons are reflected off the surface, and the rest are either absorbed by the semiconductor or penetrated by the semiconductor. Of course, some of the absorbed photons become hot, while others collide with the original valence electrons that make up the semiconductor, resulting in an electron hole pair. In this way, the solar energy will be converted into electrical energy in the form of electron hole pairs, and then through the electric field reaction inside the semiconductor, a certain current will be generated. If the battery semiconductors are connected one by one in various ways, multiple currents and voltages will be formed to output power.