Compared with the traditional off grid inverter system, the biggest difference between the new off grid inverter system and the traditional off grid inverter system is that there is no need for batteries or a small amount of batteries, so as to reduce the initial investment cost, make full use of new energy to generate electricity, and achieve the purpose of reducing the use of grid electricity or diesel generator. The new off grid inverter system consists of solar panels, combiner box, new off grid inverter and other components.

The electric energy generated by solar panels is directly connected to the new-type off grid inverter after converging through the combiner box, and then DC is converted to AC through the new-type off grid inverter for the use of load equipment.

The diesel engine / power grid is connected through the AC input terminal of the new off grid inverter, and it will participate in the inverter after rectification. When the power supply of solar panel is insufficient, it will automatically switch and supplement, and the switching time is 0ms.

In the system with a small number of batteries, some solar panels are connected to the controller to charge the batteries. The battery plays a supporting role in the switching process between solar panels and diesel generator, so as to avoid power failure of the system during the switching process.

In some applications, the new off grid inverter can also be used in wind power, hydropower and other systems.

• The drive protection is Mitsubishi inner works, and the perfect drive protection circuit ensures the reliable operation of IGBT.
• Fast dynamic response (Patented technology): Double closed-loop feedback circuit, internal loop current environmental protection certificate non-distorted non-linear load waveform; external loop voltage environmental protection certificate sudden load voltage drop ≤ 1%, reaction speed ≤ 2 ms.
• Reasonable combination of components, inversion efficiency ≥ 90%.
• Output frequency 50/60Hz switching to meet different device power requirements, other frequencies can be customized.
• Built-in isolation transformer with pure sine wave output and resistance, induction, capacitance and mixed load.
• Reasonable airway design and high heat dissipation efficiency.
• Strong carrying capacity, can withstand 200% power impact for 10 seconds.
• Friendly interactive interface, touch-display integration.
• Display DC input voltage, AC output voltage, frequency, power, temperature, status indication and fault indication.
• Digital technology design, high adjustability, DC over/under voltage, DC under voltage recovery, output over/under voltage, output overload can be set within a certain range.
• Wide voltage input range, 48-800V DC input, customizable input voltage.
• Full and efficient protection function, to protect against damage under any load, with input connection back protection, input over/under voltage protection, output under/voltage protection, IGBT drive protection, output over load protection, current limit protection, overheat protection, three-phase unbalance protection.
• Accurate switching of solar panels, batteries and grid power to maximize energy utilization.
• The generator start dry contact can start the generator in advance before the power supply is under voltage, and the start voltage can be set.
• Optional: Bypass input.
• Communication: RS485, USB, WiFi, GPRS, CAN. Data can be accessed to the Internet of Things, monitored remotely, and queried for historical data.
• Communication protocol: Modbus RTU.

The company was established in 2004 and acquired two registered trademarks in the same year. After five years of accumulation in 2009, the company gradually matured steadily. The company purchased factory buildings with independent property rights, and the company relocated to start a new journey. In 2012, the Ministry of Foreign Trade was established to open up markets and begin to expand foreign markets. In 2015, the company achieved rapid development, with 2 invention patents, 6 utility model patents, 1 appearance patents, obtained the "high-tech enterprise certificate" recognition, and obtained the ISO 9001 quality management system certification. In 2018, the company continued to innovate, with four invention patents, six utility model patents, and two software registration rights, and again successfully recognized high-tech enterprises. On July 10, 2019, it passed the certification of intellectual property management system. In 2020, three patents for invention and six patents for utility models were applied for.

1. Our main products are off grid wind turbine controller, On grid wind turbine controller, solar charging controller, wind-light complementary controller, wind-light complementary street lamp controller, On grid inverter, off grid inverter, frequency converter, stabilized frequency power supply, etc.

2. With first-class manufacturing technology, advanced technology and equipment, strong technical force, perfect testing means and personnel management, we have carried out 17 research and development projects in the last three years, completed 16 transformation of scientific and technological achievements, and invested all by itself to implement the transformation, averaging 5.3 transformation of scientific and technological achievements each year.

3. We take technological innovation as the basis of enterprise development, annual R&D cost is not less than 20% of sales revenue, and continuously explore advanced technologies in the field of new energy power sources, such as electromagnetic control technology for wind turbines, MPPT technology, yaw wind turbines control technology, wind and solar complementary system Internet of Things monitoring, etc. Now we have five national invention patents for core technologies, twelve utility model patents, and the control technology for wind turbines has reached the advanced international level.

4. We have a complete product quality assurance system and ISO 9001 certification. Perform comprehensive quality control, rigorous test one by one, each performance is superior to the relevant national standards, all products have passed the EU CE certification. Ensure user safety and reliable use. Now our products have been the preferred supporting products for well-known manufacturers. The products export to more than 120 countries and regions, such as Germany, Japan, the United States, the United Kingdom, Canada, Australia, Egypt, Brazil, Saudi Arabia, and have established a good image in the domestic and foreign markets.

5. We are based on the market, pay attention to customers, provide high-quality products, adhere to technological progress, scientific management and standardized operation are the key to our success. We will jointly meet the challenges of the new century, shape a good image outside, and construct the blueprint of a modern enterprise in an all-round and three-dimensional way.