The invention discloses an energy recovery control method and an elevator system. The elevator system comprises an energy storage unit and a brake resistor, the energy storage unit is connected between two direct-current buses of the elevator system, the brake resistor is connected between the two direct-current buses of the elevator system after being connected with a first switch in series, and the method comprises the steps that when the elevator system conducts energy recovery, the voltage of the direct-current buses is monitored; and when the direct-current bus voltage meets a preset condition, the first switch is controlled to be switched on, so that the braking resistor is connected to the direct-current bus. According to the invention, over-voltage protection can be prevented from being triggered by over-high voltage of the direct-current bus, so that reliable operation of an elevator system is ensured.
本发明公开一种能量回收控制方法及电梯系统。其中,该电梯系统包括储能单元和制动电阻,所述储能单元接入所述电梯系统的两条直流母线之间,所述制动电阻与第一开关串联后,接入所述电梯系统的两条直流母线之间,该方法包括:在电梯系统进行能量回收时,监测直流母线电压;在所述直流母线电压满足预设条件时,控制所述第一开关导通,使所述制动电阻接入直流母线。通过本发明,能够避免直流母线电压过高触发过压保护,进而保证电梯系统可靠运行。
Energy recovery control method and elevator system
一种能量回收控制方法及电梯系统
2024-03-26
Patent
Electronic Resource
Chinese
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