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PFK elevator star energy-saving device
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PFK elevator star energy-saving device

PFK电梯星集中式电梯回馈节能装置,可以把1至6台电梯的再生动能和机械能集中回馈至电网,实现电梯节能的目的。应用于多台垂直升降电梯,将1至6台电梯直流母线产生的再生能量回收到电网。 PFK电梯星集中式电梯回馈节能装置具有电磁隔离的作用,多台并联回馈的电梯之间没有电气直接连接,完全是电磁隔离的,每台电梯之间互不影响。 不改变电梯原有的控制方式,并且与电梯原来的系统“互为冗余”,确保电梯安全运行。 PFK电梯星集中式电梯回馈节能装置以每个电梯间为单位,集中控制,统一回馈,效率更高。
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(1) Adopt military high-speed DSP central processing unit

High feedback efficiency, accurate control accuracy, good stability, less harmonics, and strong anti-interference ability

(2) Adopt 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 grid

(3) Using LC filter technology

Effectively suppress harmonics and electromagnetic interference, current and voltage THD<5%, ensuring clean energy feedback

(5) Using phase sequence automatic identification technology

The phase sequence of the three-phase power grid can be connected at will, no need to distinguish the phase sequence artificially

(5) Built-in fuse

Short-circuit protection is in place to ensure the safe operation of the elevator

(6) It can automatically escape from the fault to ensure the normal operation of the elevator

"Mutual redundancy" with the original control system of the elevator, without changing the original control method of the elevator,

(7) Adopt a variety of cutting-edge technologies, compatible with all brands of elevator inverters

(8) The energy-saving effect is remarkable, and the comprehensive power-saving efficiency reaches 20-50%

(9) The recovery efficiency of regenerative electric energy is as high as 97.5%

(10) Simple installation, debugging, operation and convenient maintenance

(11) PFK elevator star centralized feedback energy-saving device, which returns the regenerative kinetic energy and mechanical energy of 1 to 6 elevators to the grid in a centralized manner, realizing the green energy-saving purpose of elevators

(12) PFK elevator star centralized feedback energy-saving device, with higher safety, each elevator is electromagnetically isolated, and the elevator and feedback are also electrically isolated

(13) PFK elevator takes each elevator room as a unit, centralized control, unified feedback, and higher efficiency

(14) PFK elevator star will not have any restrictions on the way of feeding back to the grid, and it can freely feedback to the third-party grid, and the system is more reliable

(15) PFK elevator star guarantees that there is no mutual influence between different elevators, each elevator has the original independence, and the operation is more stable

Keyword:
电梯
回馈
pfk
采用
电网
技术
节能
之间
三相
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PFK elevator star centralized type (one tow four combination)

Four 18KW elevator machine rooms in a hotel in Luohu, Shenzhen are equipped with PFK elevator star Chinese (one-to-four combination) elevator feedback and energy-saving equipment.

 

The results of the 168-hour running test are as follows:

1) Display of power saving meter: 336 degrees

2) Display of power consumption meter: 1050 degrees

3) Total power consumption = power saving meter degree + power consumption meter degree = 1386

4) Power saving rate=336/1386=24.24%

 

Comprehensive annual energy saving calculation

Annual electricity saving of 4 elevators: 17520 kWh

Air conditioning power is reduced by 2P, monthly power saving: 720 degrees

Comprehensive annual power saving: 23280 degrees (calculated based on 4 elevators and air conditioners used for 8 months)

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