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Elevator device and control method thereof

An electric storage device and elevator technology, which is applied in the direction of energy efficiency, transportation and packaging, and sustainable construction of elevators, can solve the problems of increased power consumption, shortened lifespan, and increased self-discharged power, and achieves effective use and improvement. Energy saving effect

Active Publication Date: 2015-11-25
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the power consumption due to the balance resistance increases, resulting in an increase in power that appears to be self-discharging
[0007] In addition, the life of an electric double layer capacitor depends on the voltage at both ends, and when the voltage at both ends increases, the life is shortened

Method used

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  • Elevator device and control method thereof
  • Elevator device and control method thereof
  • Elevator device and control method thereof

Examples

Experimental program
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Embodiment approach 1

[0027] figure 1 It is a block diagram showing the elevator apparatus in Embodiment 1 of this invention. In the figure, the car 1 and the counterweight 2 are suspended in the hoistway through the suspension body 3, and are raised and lowered in the hoistway by means of the traction machine 4. As the suspension body 3, a plurality of ropes or a plurality of straps are used. The weight of the counterweight 2 is set, for example, to a weight that balances with the car 1 when the car load is half of the rated load.

[0028] The hoisting machine 4 includes a drive sheave 5 around which the suspension body 3 is wound, a hoisting machine motor 6 that rotates the drive sheave 5, and a hoisting machine brake (not shown in the figure) that brakes the rotation of the drive sheave 5. ).

[0029] The hoisting machine motor 6 is connected to the commercial power source 10 for power via the inverter unit 7 , the smoothing circuit unit 8 , and the inverter unit 9 . The inverter unit 7 conv...

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Abstract

In this elevator device, a capacitor-type power storage device is used as a power storage device that stores regenerative power. During powered operation of a hoist, power stored in the power storage device is supplied to the hoist. Furthermore, power stored in the power storage device is also supplied to at least one item of power-consuming equipment other than the hoist. A storage power supply control unit controls the supply of power stored in the power storage device to the power-consuming equipment in accordance with the operation state of the hoist and the remaining storage power in the power storage device.

Description

technical field [0001] The present invention relates to an elevator apparatus in which regenerative electric power is stored in a power storage device during regenerative operation of a hoisting machine, and the electric power stored during power operation is supplied to the hoisting machine, and a control method thereof. Background technique [0002] In the existing elevator apparatus, the AC power output from the three-phase AC commercial power supply is converted into DC power by the converter, and the DC power converted by the converter is converted into the AC power with variable voltage and variable frequency by the inverter, And the alternating current from the inverter is supplied to the hoisting machine. [0003] In addition, generally, when the car is lowered in a state where the car load is no load, and when the car is raised in a state where the car load is a rated load, the operating state of the hoisting machine is the power that consumes electric power to oper...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B1/34
CPCB66B1/302Y02B50/142Y02B50/00
Inventor 石黑英敬
Owner MITSUBISHI ELECTRIC CORP