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    • 1. 发明申请
    • TECHNIQUES FOR MONITORING GEAR CONDITION
    • 监测齿轮条件的技术
    • WO2014188072A1
    • 2014-11-27
    • PCT/FI2014/050390
    • 2014-05-21
    • KONECRANES PLC
    • MESIÄ, HeikkiKEROVUORI, JuhaniHARRA, IlkkaJANTUNEN, AapoSALOMÄKI, Janne
    • G01M13/02G01M1/14H02K7/116G01H1/00G01R23/18
    • G01M13/021G01H1/006G01P3/44H02P29/032
    • Method/apparatus for performing following acts on a system (2-2) that comprises an electrical motor (2-8) followed by a gear (2-16), and a speed output unit (2-10): monitoring a first set of frequencies from the system over a measurement period when the system is in a known good operating condition; storing the first set of monitored frequencies or derivatives thereof as reference data in a long-term storage system; monitoring a second set of frequencies from the system over a measurement period when the system is in an unknown operating condition; comparing the second set of monitored frequencies with the first set of monitored frequencies in a frequency domain; in the frequency domain, detecting changes between corresponding frequencies resulting from the second set of monitored frequencies and the first set of monitored frequencies.
    • 在包括电动马达(2-8)和齿轮(2-16)的系统(2-2)上执行以下动作的方法/装置以及速度输出单元(2-10):监视第一组 的系统在系统处于已知的良好操作状态的测量周期内的频率; 将第一组监视频率或其派生作为参考数据存储在长期存储系统中; 当系统处于未知的操作状态时,在测量周期内监视来自系统的第二组频率; 将第二组监测频率与频域中的第一组监测频率进行比较; 在频域中,检测由第二组监视频率和第一组监视频率产生的相应频率之间的变化。
    • 3. 发明申请
    • MOTOR CONTROL SYSTEM FOR A HOIST DRIVE
    • 电机驱动电机控制系统
    • WO2011067467A1
    • 2011-06-09
    • PCT/FI2010/050982
    • 2010-11-30
    • KONECRANES PLCSALOMÄKI, JannePORMA, Mikko
    • SALOMÄKI, JannePORMA, Mikko
    • H02P6/08H02P23/08H02P25/02B66B1/30B66B11/04B66B15/08B66C13/22B66D3/20
    • H02P23/0036B66D1/46H02P23/0004H02P23/0077
    • A motor control system for a hoist drive having an electric motor (2) operationally connected to a hoisting member (4) for hoisting a load (6), the motor control system being adapted to generate a final angular frequency reference (ω*s) for control of the electric motor (2), the motor control system comprising a power limiter means (8) adapted to generate a correction term (ωs,COr) for angular frequency reference. The power limiter means (8) comprises an integrating controller means (10), the power limiter means (8) being adapted to generate the correction term (ωs,COr) for angular frequency reference using output signal Ip of the integrating controller means (10), initial data of the integrating controller means (10) including information relating to actual value of the power of the electric motor (2) and a power related limit value of the electric motor (2).
    • 一种用于起重机驱动装置的电动机控制系统,其具有可操作地连接到用于起重负载(6)的提升构件(4)的电动机(2),所述电动机控制系统适于产生最终的角频率基准(ω* s) 为了控制电动机(2),电动机控制系统包括适于产生用于角频率参考的校正项(Δs,COr)的功率限制器装置(8)。 功率限制器装置(8)包括积分控制器装置(10),功率限制器装置(8)适于使用积分控制器装置的输出信号Ip产生用于角频率参考的校正项(ωs,COr) 10),包括与电动机(2)的电力的实际值有关的信息和电动机(2)的电力相关极限值的积分控制装置(10)的初始数据。