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1. 发明申请

WO1998043347A1 DEVICE AND METHOD FOR CONTROLLING INDUCTION MOTOR 审中-公开
标题翻译：用于控制电动机的装置和方法
公开(公告)号：WO1998043347A1
公开(公告)日：1998-10-01
申请号：PCT/JP1997000952
申请日：1997-03-24
申请人： MITSUBISHI DENKI KABUSHIKI KAISHA , IMANAKA, Akira , KAITANI, Toshiyuki
发明人： MITSUBISHI DENKI KABUSHIKI KAISHA
IPC分类号： H02P07/63
CPC分类号： H02P27/06
摘要： A device and method for controlling induction motor by which an induction motor (1) is controlled based on the predicted change of resistance value of the winding of the motor with the temperature of the motor (1) changes during operation. A resistance measuring instrument (7) measures and outputs the resistance value of the winding and a resistance changing factor computing element (8) computes the difference between the resistance values of the winding measured before and after a first operation cycle and the resistance change coefficient of the winding per unit quantity of the heat generated from the motor (1) during the first operation cycle. Then a resistance change predicting device (9a) outputs the predicted resistance value of the winding predicted from the initial resistance value of the winding of when the motor (1) is started, measured by means of the measuring instrument (7) when a second operation cycle is started, the quantity of the heat generated from the motor (1) during the second cycle, and the resistance change coefficient. A control means (6) controls the motor (1) through an inverter (2) by using the predicted resistance value of the winding.
摘要翻译：用于控制感应电动机的装置和方法基于电动机的绕组的电阻值的预测变化与电动机（1）的温度的预测变化来控制，感应电动机（1）在操作期间改变。电阻测量仪器（7）测量并输出绕组的电阻值，电阻变化率计算元件（8）计算第一操作周期之前和之后测量的绕组的电阻值与电阻变化系数在第一操作循环期间从电机（1）产生的每单位热量的绕组。然后，电阻变化预测装置（9a）在第二操作（7）中，通过测量仪器（7）测量当电动机（1）开始时的绕组的初始电阻值预测的绕组的预测电阻值，循环开始，在第二循环期间从电机（1）产生的热量和电阻变化系数。控制装置（6）通过使用绕组的预测电阻值通过逆变器（2）控制电动机（1）。

2. 发明申请

WO1998040964A1 INDUCTION MOTOR CONTROLLER 审中-公开
标题翻译：感应电动机控制器
公开(公告)号：WO1998040964A1
公开(公告)日：1998-09-17
申请号：PCT/JP1997000752
申请日：1997-03-11
申请人： MITSUBISHI DENKI KABUSHIKI KAISHA , KAITANI, Toshiyuki , NAGANO, Tetuaki , IMANAKA, Akira , SHIRAISHI, Yasuhiro
发明人： MITSUBISHI DENKI KABUSHIKI KAISHA
IPC分类号： H02P07/63
CPC分类号： H02P27/08 , H02P21/16 , H02P23/08
摘要： An induction motor controller controls the drive of a polyphase induction motor (102) by means of a polyphase inverter (105) by measuring the electrical constants of the motor (102) by supplying test power and using the results of the measurement as drive control parameters. The controller has a first arithmetic means (106) which computes the resistances R2 of the secondary wiring and leakage inductances L corresponding to various conditions of a test using a test power source of three different frequencies (f) and a second arithmetic means (107) which finds a rational function containing a quadratic expression with respect to the frequency (f) by substituting the values of the resistances R2 and inductances L corresponding to the test conditions into the rational function having the resistances R2 as denominators and the inductances L as numerators and finds the resistances R2 and inductances L by substituting a required secondary slip frequency into the rational function.
摘要翻译：感应电机控制器通过多相逆变器（105）来控制多相感应电动机（102）的驱动，通过提供测试功率并使用测量结果作为驱动控制参数来测量电动机（102）的电常数。控制器具有第一算术装置（106），其计算使用三个不同频率（f）和第二算术装置（107）的测试电源的测试的各种条件对应的次级线路的电阻R2和漏电感L，通过将与测试条件相对应的电阻R2和电感L的值代入具有电阻R2作为分母的有效函数和电感L作为分子，找到包含相对于频率（f）的二次表达式的合理函数，以及通过将所需的二次滑移频率代入有理函数，找到电阻R2和电感L。

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