Our energy storage products and system solutions solve power supply problems in areas with no and weak electricity, and achieve smart power supply and demand allocation. This system is designed for three-phase energy storage system, which can realize the functions of On grid power generation, off-grid inversion, and city power reverse charging. If the power grid is disconnected, the storage system can automatically and seamlessly switch to off-grid operation mode to ensure uninterrupted power supply.

On grid mode: PCS has the following function when on grid mode:
Active power control function: PCS can accept the charge / discharge power command of grid monitoring system, and charge / discharge the energy storage battery according to the specified active power command.

Off grid mode: During off-grid operation, the PCS can withstand continuous power disturbance ranging from -100kVA to 100kVA, and the PCS can withstand 1.1 times of short-term rated power. During the transient process, the fluctuation range of equipment voltage frequency meets the technical specifications of PCS off grid in this technical agreement. After the system is stabilized again, the PCS can stabilize the system voltage frequency at 380V/50Hz.

On/Off grid Switching Function: PCS enables on / off grid switching capability, enabling seamless switching. The switching condition is that the system is three-phase four-wire system with three-phase load balance and unbalance can not exceed 20% of capacity. When PCS is connected to the grid, the switch on and off engages and the load is supplied by the grid. PCS can charge/discharge in the grid. If the power grid is powered off, the PCS control system detects that the switch is disconnected after the power grid is powered off, the PCS switches to off-grid operation mode and the load is supplied by the PCS.

During off-grid on-load operation, if the grid is restored, the PCS control system detects that the voltage of the grid is within normal range, adjusts the output voltage of the PCS to be consistent with the grid, and controls the switch-on and switch-off to engage. The load is restored to power supply from the grid, and the PCS is restored to on grid operation.

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. Technological innovation is taken as the basis of enterprise development, annual R&D cost is not less than 20% of sales revenue, and we 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 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 the well-known domestic 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.