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    • 2. 发明公开
    • 유도 전동기 구동용 인버터
    • 用于驱动电机的逆变器
    • KR1020150140963A
    • 2015-12-17
    • KR1020140069247
    • 2014-06-09
    • 엘에스산전 주식회사
    • 지민훈전미림
    • H02M7/42H02P27/06
    • H02P27/06H02M7/44H02P23/08H02P25/062H02P2207/05
    • 본발명은유도전동기구동용인버터에관한것으로서, 정전발생여부를알리기위하여전원상태신호를출력하는정전감시부를포함하고, 정전감시부에서출력하는전원상태신호에따라정전시의연속운전을실행한다. 정전감시부는인버터의직류단전압에의존하지않고독립적으로정전을감시하도록구성되기때문에인버터의연속운전시 제어되는직류단전압을자유롭게설정할수 있게된다. 예컨대인버터의연속운전시 제어되는직류단전압을정상상태에서의전압또는그 이상의값으로유지시킬수 있으며, 이에따라정전시의연속운전을더욱안정적으로수행할수 있게된다.
    • 本发明涉及用于驱动感应电动机的逆变器。 逆变器包括停电监视单元,其输出停电状态信号以通知是否发生停电,并且根据从停电监视单元输出的停电状态信号在停电中执行连续操作。 停电监视单元被配置为独立地监视停电而不依赖于逆变器的直流端子电压,从而可以自由地设定当逆变器连续工作时控制的直流端子电压。 例如,逆变器可以保持直流端子电压,在逆变器连续动作时控制,电压处于正常状态以上,从而更安全地进行停电中的连续动作。
    • 7. 发明公开
    • 유도 전동기의 회전 속도 검출 방법
    • 检测电动机转速的方法
    • KR1020030074920A
    • 2003-09-22
    • KR1020020013916
    • 2002-03-14
    • 엘에스산전 주식회사
    • 나승호
    • H02P6/06
    • H02P1/00H02P1/029H02P3/18H02P5/00H02P6/06H02P23/08H02P27/06
    • PURPOSE: A method for detecting a rotation speed of an inductive motor is provided to obtain a target voltage within a short time without an acceleration time by using the practical current applied to a motor in order to boost a voltage. CONSTITUTION: A method for detecting a rotation speed of an inductive motor includes a voltage control process, an output frequency control process, and an output frequency selection process. The voltage control process is to control an output voltage by using the output current. The output frequency control process is to generate an output frequency by using the excited current. The output frequency selection process is to select the final output frequency by using the output of the voltage control process and the output frequency control process.
    • 目的:提供用于检测感应电动机的转速的方法,以通过使用施加到电动机的实际电流来在短时间内获得目标电压而不加速时间,以提高电压。 构成:用于检测感应电动机的转速的方法包括电压控制处理,输出频率控制处理和输出频率选择处理。 电压控制过程是通过使用输出电流来控制输出电压。 输出频率控制过程是通过使用激励电流产生输出频率。 输出频率选择过程是通过使用电压控制过程和输出频率控制过程的输出来选择最终输出频率。
    • 10. 发明授权
    • 엘리베이터의 제어장치
    • 电梯控制器
    • KR1019900001793B1
    • 1990-03-24
    • KR1019850009187
    • 1985-12-06
    • 미츠비시덴키 가부시키가이샤
    • 이께지마히로유끼
    • H02P7/63
    • B66B1/30H02P23/08
    • A control apparatus for an elevator, wherein an inverter is connected to a DC power source to change DC power into AC power, and an induction motor is driven by the AC power so as to operate a cage, comprises a first inverter control command generation portion which controls the torque of the induction motor in dependance on a slip frequency command signal that corresponds to a deviation between a speed command signal and a detected speed signal of the induction motor, and regenerative powr detection means to detect whether electric power which is regenerated from the induction motor to the DC power source side is zero or not.
    • 一种电梯控制装置,其特征在于,逆变器与直流电源连接,将直流电变换为交流电力,感应电动机由交流电驱动以使轿厢动作,包括:第一逆变器控制指令生成部 其根据与感应电动机的速度指令信号和检测速度信号的偏差对应的转差频率指令信号来控制感应电动机的转矩,再生电力检测装置检测是否从 直流电源侧的感应电动机为零。