Rawsun AFE Units are made by our powerful research and development of power electronic platform manufacturing platform for production of high-performance energy-saving products, the Active Front End (AFE) and IGBT power of three-phase bridge type structure, through high-speed switch rectifier and IGBT switch state energy feedback function, can realize the power grid and a two-way flow of energy between inverter dc bus.
Rawsun AFE Units can timely and efficiently feedback the electric energy converted from the kinetic energy or potential energy of the production machinery to the power grid to save the electric energy effectively. In addition, both in the rectifier and feedback state, the voltage and current waveform of the grid side of the rectifier feedback unit is sinusoidal waveform with low harmonic content, and the power factor is also close to 1, which basically eliminates the harmonic interference of the inverter to the power grid, truly achieving environmental protection.
Rawsun AFE Units can return the energy wasted on energy dissipation resistors in the application of traditional inverter to the power grid, saving a lot of electric energy and achieving considerable social and economic benefits. It can also improve the power factor of electrical equipment and power network, reduce the distribution capacity of customers and improve the use efficiency of distribution system.
Therefore, Rawsun AFE Units can promote energy conservation and emission reduction, promote the harmonious development of environment and resources, and have significant economic and social benefits.
1.It can improve the input power factor in transmission field. Reducing harmonic pollution of power grid;
2.No commutation voltage gap, no commutation failure.
3.For highly fluctuating supply voltage, stable DC bus voltage can be guaranteed even if the voltage drops below 80% of the rated voltage.
4.The fourth generation Of Infineon IGBT is adopted, and the weekly power and temperature of IGBT are greatly improved. Dry metallized polypropylene film capacitance, long service life, wide range of practical temperature, no pollution to the environment.
5.Good voltage adaptability, more suitable for the domestic power grid, voltage 380V+15%/-20%;460 v + 15% / 20%;690 v + 15% / 20%.
6.With Profibus DP and Can Open communication function, it Can communicate with the upper computer and realize monitoring.
7.With phase sequence automatic detection and synchronization function, easy to use;No parameter setting required, simple to use.
8.With over voltage, under voltage, grounding fault, motor phase detection, over current, over temperature, current limit, phase loss, short circuit, communication and other multiple protection functions.
Various mine hoist;
Equipment for equipotential energy conversion of elevators and cranes used in construction and port;
Dynamometer, locomotive test bed and other tow-type production testing equipment;
In the field of new energy generation, such as wind power generation and solar power generation.