MOTOR CONTROL CIRCUIT, MOTOR SYSTEM, AND STEP-OUT DETECTION METHOD

• Main Author: SERIZAWA KAZUHIKO
• Format: Patent
• Language: Chinese; English
• Published: 16.10.2020
• Subjects: CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION

A motor control circuit (300) of the present disclosure is provided with a processor (60), and a memory (80) storing a software program for controlling the operation of the processor. On the basis ofthe software program, the processor: acquires the value of a voltage applied to a plurality of windings (30) of a stator (10) and the value of a current flowing through the plurality of windings of the stator; determines, using the value of the current and the value of the voltage, an estimated value for the strength of a rotor magnetic flux [FAI]m formed by a rotor (20) in the plurality of windings; and detecting step-out when the estimated value for the strength of the rotor magnetic flux [FAI]m is outside a prescribed range. 本发明的电动机控制电路(300)具备：处理器(60)；存储器(80)，其记录了控制处理器的运行的软件程序。处理器依照软件程序，执行以下处理：取得施加到定子(10)的多个绕组(30)的电压的值、以及流过定子的多个绕组的电流的值；使用电流的值和电压的值，确定转子(20)在多个绕组中形成的转子磁通(Φm)的强度的推定值；在转子磁通(Φm)的强度的推定值从规定范围脱离时，检测出失调。