The invention provides a power conversion device and an elevator device. The power conversion device can suppress outflow of high-frequency current and avoid unnecessary voltage drop. A power conversion device (10) is provided with: a full-wave rectification circuit (12) that performs full-wave rectification on input power input from a system power supply (20); an inverter circuit (14) that converts the output of the full-wave rectifier circuit (12) into AC power; and a reactor (11) that is provided to the preceding stage of the full-wave rectifier circuit (12) and that suppresses harmonic components of the input power. Inductance value of reactor (11) satisfies formula in which lower limit value is defined using commutation angle of input current from system power supply (20), voltage effective value of system power supply (20), electrical angular frequency of system power supply (20), and input power, and inverter circuit (14) using electrical angular frequency of system power supply (20) and maximum value of input power The DC-side voltage limit value and the voltage effective value of the system power supply (20) define the formula of the upper limit value.

    电力变换装置以及电梯装置,能够抑制高频电流的流出且避免不必要的电压下降。电力变换装置(10)具备:全波整流电路(12),其对从系统电源(20)输入的输入电力进行全波整流;逆变器电路(14),其将全波整流电路(12)的输出变换为交流电力;以及电抗器(11),其设置于全波整流电路(12)的前级,抑制输入电力的高次谐波成分。电抗器(11)的电感值满足使用来自系统电源(20)的输入电流的换流角、系统电源(20)的电压有效值、系统电源(20)的电角频率以及输入电力规定了下限值的式子、和使用系统电源(20)的电角频率、输入电力的最大值、逆变器电路(14)的直流侧电压限制值以及系统电源(20)的电压有效值规定了上限值的式子。


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    Title :

    POWER CONVERSION DEVICE AND ELEVATOR DEVICE


    Additional title:

    电力变换装置以及电梯装置


    Contributors:

    Publication date :

    2024-07-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B66B Aufzüge , ELEVATORS / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern



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