Micro power consumption elevator
A technology of energy consumption and elevators, which is applied in the direction of elevators, electrical components, motor generator control, etc. in buildings, can solve the problems of bulky power supply system, waste of resources and electric energy, and must be released, so as to achieve energy saving and saving Equipment cost, effect of effective recycling
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Embodiment 2
[0050] Embodiment 2 is a transformation implementation plan utilizing the existing elevator structure. We remove the external braking unit circuit and external energy-dissipating resistor in the prior art, remove and replace the original filter capacitor connected in parallel with the DC bus with a supercapacitor assembly F, the connection method of the supercapacitor assembly F and the filter The capacitors are the same, and the positive terminal of the output circuit of the three-phase rectifier bridge D at the original power input terminal is disconnected from the positive terminal of the bus bar of the frequency converter B', and the voltage monitoring device H is connected in series, and the control switch K is connected in series with the voltage monitoring device In H, the positive terminal of the rectifier bridge D is connected to the n terminal of the control switch K, the m terminal of the control switch K is connected to the positive terminal P of the bus bar of the ...
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