Abstract:
본 발명은 결선용 기판을 구비하는 고정자 구조 및 이를 포함하는 전동기에 관한 것으로서, 회전축을 기준으로 회전하는 회전자, 고정자, 회전자의 위치를 검출하는 홀센서, 및 고정자의 끝단에 인접해 위치한 환상의 형태를 취하며, 회전자가 삽입 가능하도록 일정 내경을 갖는 중심홀이 형성되고, 중심홀이 위치한 안쪽 테두리를 따라 홀센서를 위치시키기 위한 센서홈이 형성되며, 고정자로부터 인출되는 코일의 단부를 결선하기 위해 관통 형태의 결선공이 형성되어 결선공에 안착된 코일의 단부를 내부 패턴을 이용해 결선하는 기판몸체를 구비한 기판을 포함하며, 이를 통해 고정자로부터 인출되는 코일의 단부를 기판 내부의 패턴을 이용해 용이하게 결선할 수 있고, 결선에 따른 전동기의 부피와 복잡도가 감소된다.
Abstract:
The present invention relates to a permanent magnet motor. Disclosed are a method and a system for detecting faults in the serial coil type permanent magnet motor making a feature of comprising: a step of driving a serial type coil motor based on the defined current order value; a step of detecting the current vector of the motor; a step of calculating a current compensation value for removing the negative sequence component of the motor based on the current vector; a step of providing the current compensation value to a negative sequence current control device and calculating the output of the negative sequence current control device, a fault degree, and a fault image of the serial coil type motor using a fault model in which the inducement magnetic flux change amount of other slots on the specific image and the specific slot of the serial coil type motor; and a step of applying the current indication value in which the calculated fault image and fault degree are applied. [Reference numerals] (AA) START; (BB) END; (S101) Provide a control signal according to defined current instruction value to an invertor; (S103) Serial coil type motor operation according to control signal; (S105) Detect a current vector of a serial coil type motor; (S107) Calculate a current compensation value for removing a negative sequence component; (S109) Provide a current compensation value to a negative sequence current controller; (S111) Detect and apply a fault degree and a fault image using a fault model in which an inducement magnetic flux change amount and the output of a negative sequence current controller are applied
Abstract:
The present invention relates to a gate driving circuit for a large-capacity inverter capable of performing self-triggering in a large-capacity by using an SCR rectifier for reducing the volume of an initial charging circuit. Given in the present invention, a gate driving circuit for a large-capacity inverter includes a rectifier, an initial charging unit, and an SCR gate driving circuit. The SCR gate driving circuit includes a plurality of blocking diodes (D7 - D9), an A contact point relay (RY1), a plurality of SCR driving resistors (R7 - R9), and a plurality of filter capacitors (C7 - C9). [Reference numerals] (AA) Controller
Abstract:
PURPOSE: Location correction method of a Hall sensor of a BLDC electric motor using reverse electromotive voltage and BLDC electric motor supporting the same are provided to reduce vibration and noise by decreasing torque ripple. CONSTITUTION: A motor includes stator and rotor. Hall sensors (120) detect a location of a rotor of the motor. A motor control unit (130) controls driving of the motor. A memory stores a location correction value. An inverter (150) supplies power required for the motor driving. [Reference numerals] (130) Motor control unit; (140) PWM driving unit