PFE elevator feedback energy saving device
The PFE elevator energy-saving device is applied to vertical lift elevators to recover the regenerative energy generated during elevator operation to the power grid for reuse. The general power saving rate is between 20 and 45%.
The PFE elevator energy-saving device does not change the original control method of the elevator, and is "redundant" with the original elevator system to ensure the safe operation of the elevator.
The PFE elevator energy-saving device is an elevator energy-saving product that has passed the safety inspection of the National Elevator Quality Supervision and Inspection Center, the Guangdong Provincial Special Equipment Inspection Institute, the Shanghai Special Equipment Inspection Institute and the Shenzhen Electronic Product Quality Inspection Center.
⑴Using military high-speed DSP central processing unit
High feedback efficiency, accurate control accuracy, good stability, less harmonics, strong anti-interference ability
⑵Adopt SVPWM modulation technology
SVPWM modulation technology can realize DC to AC, perfectly restore the three-phase output voltage, and can output a perfect current waveform through the superposition effect of the filter and the three-phase power grid
⑶ Adopt LC filter technology
Effectively suppress harmonics and electromagnetic interference, current and voltage THD <5%, to ensure the feedback of clean electric energy
⑷ Adopt phase sequence automatic identification technology
The phase sequence of the three-phase power grid can be connected at will, and there is no need to manually distinguish the phase sequence.
⑸Built-in fuse
The short circuit protection is in place to ensure the safe operation of the elevator
⑹ It can automatically escape from the fault to ensure the normal operation of the elevator
It is "mutually redundant" with the original control system of the elevator, and does not change the original control method of the elevator.
⑺Adopt a variety of research and development technologies, compatible with all brands of elevator inverters
⑻ Significant energy saving effect, comprehensive power saving efficiency of 20-50%
⑼ The recovery efficiency of regenerative electric energy is as high as 97.5%
⑽Installation, debugging, operation is simple, maintenance is convenient
⑾ Adopt self-diagnosis technology to ensure accurate output voltage, prevent current loopback, so that the inverter will not be affected in any way.
Suitable for all types of vertical elevator energy-saving applications
