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    • 5. 发明专利
    • Stroke control device and method for reciprocating compressor
    • 冲击控制装置和压缩机的再生方法
    • JP2003056470A
    • 2003-02-26
    • JP2002129776
    • 2002-05-01
    • Lg Electronics Incエルジー電子株式会社
    • YOO JAE-YOOLEE CHEL WOONGHWANG MIN-KYU
    • F04B49/06F04B35/04H02P25/04H02P27/06H02P7/63
    • F04B35/045F04B2203/0401F04B2203/0402F04B2203/0409
    • PROBLEM TO BE SOLVED: To provide a stroke control device and method for a reciprocating compressor that can improve operation efficiency. SOLUTION: This stroke control device for the reciprocating compressor comprises a current detecting part 120 for detecting a current flowing to a motor of the reciprocating compressor 110; a stroke detecting part 130 for detecting the stroke of a piston by the voltage and current applied to the motor; a phase difference detecting part 140 for detecting the phase difference by the stroke and the motor current of the current detecting part 120; an operation frequency determining part 150 for determining operation frequency suitable for the phase difference, a frequency/stroke storage part 160 for storing the stroke value; a stroke command value determining part 170 for determining a stroke command value; a control part 180 for outputting a stroke control signal according to the stroke command value and the stroke value of the piston at and after a prescribed point of time; and an inverter 190 for varying the voltage applied to the motor of the reciprocating compressor 110.
    • 要解决的问题:提供一种可提高运行效率的往复式压缩机的行程控制装置和方法。 解决方案:用于往复式压缩机的行程控制装置包括用于检测流向往复式压缩机110的电动机的电流的电流检测部分120; 行程检测部分130,用于通过施加到电动机的电压和电流来检测活塞的行程; 用于检测电流检测部分120的行程和电动机电流的相位差的相位差检测部分140; 用于确定适合于相位差的操作频率的操作频率确定部件150,用于存储行程值的频率/行程存储部件160; 用于确定行程命令值的行程命令值确定部分170; 控制部180,用于根据行程指令值和规定时间点后的活塞的行程值输出行程控制信号; 以及用于改变施加到往复式压缩机110的马达的电压的逆变器190。