PFE elevator feedback energy saving device
翻译结果
1. Adopt high-speed DSP central processing unit Upgrade a new generation of feedback control software, with accurate control accuracy, good stability, less harmonics, and strong interference ability.
2. Adopt the latest SVPWM modulation technology in the industry Upgrade a new generation of SVPWM vector control technology to meet all the current harmonic requirements of the elevator energy feedback national standards.
3. Meet the national standard of elevator energy feedback device Upgrade a new generation of control software and hardware, through GB/T 32271-2015 "Elevator Energy Feedback Device" and TSG T7007-2016 "Elevator Type Test Rules" test, report number: WT NET 18-410.
4. Standard RS485 communication and feedback energy display The product comes standard with RS485 communication and keyboard communication display, and all software control parameters are open for display and debugging, which is convenient for product monitoring. control.
5. Prevent the islanding effect
The software monitors the status of the power grid in real time. If the power grid is cut off, it will immediately stop the power feedback to the power grid to prevent the islanding effect.
6. Adopt LC filter technology
Optimized LC filter to effectively suppress harmonics and electromagnetic interference, voltage and current THD<5%, to ensure the feedback of clean electric energy.
7. Adopt phase sequence automatic identification technology
Upgrade the 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.
8. The upgraded hardware design exceeds the requirements of the national standard for pressure resistance
The newly upgraded hardware design meets the 2500V AC 1min withstand voltage, and the leakage current is less than 2mA, which is far lower than the national standard 30mA requirement.
9. Highly integrated hardware design to improve product reliability
Except for reactors, all hardware design circuits are designed with PCB integrated circuits to improve product consistency and reliability.
10. Improve the feedback current level of the machine
The newly upgraded hardware and control software reduce the volume of the product by more than 31%, and at the same time, increase the feedback current by 34%.
11. Standard air circuit breaker
Standard DC and three-phase AC fuses, standard air circuit breakers, and short-circuit protection are in place to ensure the safe 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.
13. Using a variety of original technologies, compatible with all brands of elevator inverters
14. The energy saving effect is remarkable, and the comprehensive energy saving rate reaches 20% to 50%
15. The regenerative power feedback efficiency is as high as 97.9%
16. Easy to install, debug, operate and maintain
