Deye Three Phase 4 MPPT String Inverter 33kw 35kw 40kw 45kw 50kw

Solar inverter
Solar inverters, the key balance of system (BOS) components in a PV system, allow the use of common AC power supply devices. Solar inverters have special features suitable for PV arrays, including xxx power point tracking and anti-islanding protection.
Classification of solar inverters
Solar inverters can be divided into three main categories:
1. Stand-alone inverters, used in isolated systems where the inverter extracts DC energy from the batteries charged by the PV array. Many stand-alone inverters also integrate a battery charger to replenish the batteries in the event that AC power is available. Typically, they are not connected to the utility grid in any way and therefore do not need to have anti-islanding protection.
2. Grid-tied inverters that match the phase to the sine wave provided by the utility. For safety reasons, grid-tied inverters are designed to automatically shut down in the event of a utility interruption. They do not provide backup power during utility interruptions.
3. Standby battery inverters are dedicated inverters designed to draw energy from the battery, manage the battery charge through an on-board charger, and output the excess energy to the utility grid. These inverters are capable of supplying AC energy to selected loads during utility outages and need to have anti-islanding protection.
4. Smart hybrid inverters manage the PV array, battery storage and utility grid, all of which are directly coupled to the unit. These modern all-in-one systems are often highly versatile and can be used for grid-tied, stand-alone or backup applications, but their primary function is self-consumption through the use of storage.
xxx power point tracking
Solar inverters use xxx power point tracking (MPPT) to obtain xxx possible power from the PV array. Solar cells have a complex relationship between solar radiation, temperature and total resistance, which can produce a non-linear output efficiency called the IV curve. the purpose of the MPPT system is to sample the output of the cell and determine the resistance (load) to obtain xxx power for any given environmental condition.
The fill factor, commonly referred to by its abbreviation FF, is a parameter that is related to the open circuit voltage (V combined with OC) and short circuit current (I SC panel) that determines the xxx power from a solar cell. The fill factor is defined as the ratio of the xxx power from a solar cell to the product of V oc and I sc.
There are three main types of MPPT algorithms: perturbation observation, incremental conductance, and constant voltage. The first two methods are commonly referred to as hill climbing methods; they rely on power curves plotted relative to the voltage rising to the left of the xxx power point and falling on the right side of the voltage.
Solar Micro Inverter
Solar microinverters are inverters designed for use with individual PV modules. The microinverter converts the DC output from each panel to AC. Their design allows multiple independent units to be connected in parallel in a modular fashion.
Advantages of microinverters include: single panel power optimization, independent operation of each panel, plug-and-play installation, improved installation and fire safety, minimized system design costs and minimized inventory.
A 2011 study by Appalachian State University (ASU) reported that a separate integrated inverter setup increased power by about 20% in unshaded conditions and 27% in shaded conditions compared to a series setup using one inverter. Both setups use the same solar panels.
On-grid Solar Inverter
Solar grid-tied inverters are designed to quickly disconnect from the grid in the event of a utility grid failure. This is an NEC requirement that ensures that in the event of a power outage, the grid-tied inverter will shut down to prevent the energy it generates from harming any linemen being sent to repair the grid.
Grid-connected inverters on the market today use a variety of different technologies. Inverters can use newer high-frequency transformers, conventional low-frequency transformers, or no transformers at all. Instead of converting DC power directly to 120 or 240 volts AC, high-frequency transformers use a computerized multi-step process that involves converting power to high-frequency AC, then to DC, and then to the final AC output voltage.
Historically, there have been concerns about feeding transformerless electrical systems into the utility grid. The reason for concern was the lack of electrical isolation between DC and AC circuits, which could allow dangerous DC faults to pass through to the AC side. Since 2005, the NFPA's NEC has allowed the use of transformerless (or non-electrical) inverters. VDE 0126-1-1 and IEC 6210 have also been modified to allow and define the safety mechanisms required for such systems. First, residual current or ground current detection is used to detect possible fault conditions. Isolation tests are also performed to ensure DC to AC separation.
Many solar inverters are designed to be connected to the utility grid and will not operate if the grid presence is not detected. They contain dedicated circuitry to precisely match the grid's voltage, frequency and phase.
 

Hebei Huicang Technology Co., Ltd. is a world-renowned and highly innovative solar energy technology enterprise. Adhering to the mission of "changing the energy structure and assuming the responsibility for the future", the company strategically arranges the core links of the photovoltaic industry chain, focuses on the integrated research and development and manufacturing of photovoltaic products and the provision of overall clean energy solutions, and leads the global mainstream photovoltaic market in sales.


Hebei Huicang Technology Co., Ltd. is a world-renowned and highly innovative solar energy technology enterprise. Adhering to the mission of "changing the energy structure and assuming the responsibility for the future", the company strategically arranges the core links of the photovoltaic industry chain, focuses on the integrated research and development and manufacturing of photovoltaic products and the provision of overall clean energy solutions, and leads the global mainstream photovoltaic market in sales.

Huicang Technology's products serve more than 3,000 customers in more than 160 countries and regions around the world. Huicang Technology has been ranked the global component shipment champion for many years. By December 2022, the company had shipped more than 130GW of components. The company is an industry opinion leader in several international frameworks, including B20, and joined the RE100 Green Initiative in 2019. Huicang Technology is the first in the industry to establish a "vertically integrated" production capacity from silicon wafers, cells to components, with 14 global production bases in China, Malaysia, Vietnam and the United States. By the end of 2022, the company's production capacity of single crystal silicon wafer, battery and module has reached 65GW, 55GW and 70GW respectively, and it has established the largest production capacity of N-type battery in the industry with a total of 35GW. With more than 1,000 R&D and technical personnel, the company has won many awards, such as "National Enterprise Technology Center", "National Technology Innovation Demonstration Enterprise" and "Manufacturing Single Champion". It has led the formulation of a number of international and domestic industry standards, such as IEC, and constantly expands the
diversified scale application scenarios of photovoltaic technology. We will actively arrange photovoltaic building integration, photovoltaic hydrogen production, energy storage and other fields, and strive to create a new energy ecosystem.

1. who are we?
We are based in Hebei, China, start from 2022,sell to Eastern Europe(52.00%),Oceania(52.00%),Western Europe(52.00%),North America(25.00%),South America(25.00%),Southeast Asia(25.00%),Africa(25.00%),Mid East(25.00%),Eastern Asia(25.00%),Central America(25.00%),Northern Europe(25.00%),Southern Europe(25.00%),South Asia(25.00%),Domestic Market(25.00%). There are total about 5-10 people in our office.

2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

3.what can you buy from us?
Solar photovoltaic product,Solar panel,Solar inverter,Solar tile

4. why should you buy from us not from other suppliers?