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양순배(Soon-Bae Yang),홍찬희(Chan-Hee Hong),조관열(Kwan-Yuhl Cho) 전력전자학회 2002 전력전자학술대회 논문집 Vol.- No.-
A sensorless control of a PM synchronous motor under the parameter variation is presented The rotor position is estimated by using the d-axis and q-axis current errors between the real system and motor model of the estimator The stator resistance is measured at low speeds when the motor changes Its rotating direction The gains 10 the position estimator are also adapted according to the motor speeds
김학원(Hag-Wane Kim),양순배(Soon-Bae Yang),조관열(Kwan-Yuhl Cho),홍찬희(Chan-Hee Hong) 전력전자학회 2000 전력전자학술대회 논문집 Vol.2000 No.11
In this paper, the low cost sensorless control circuit for a PM synchronous motor without the mechanical rotor position sensors is presented. The sensorless control algorithm and position detection circuit for the sinusoidal current wave drive is more complex than that of the rectangular current wave drive. The proposed position sensing circuit is composed of an operational amplifier and several passive elements. The design procedures for getting the optimal parameters for the position sensing circuit are presented. The performance of the proposed algorithm is verified through the simulations and experiments.
홍찬희(Chan-Hee Hong),조관열(Kwan-Yuhl Cho),양순배(Soon-Bae Yang) 전력전자학회 2001 전력전자학술대회 논문집 Vol.2001 No.7
This paper presents the sensorless control technique with cost competitive phase currents detection for PMSM drives. The phase currents are detected by two methods : one is from the dc link current, another is from the currents of the lower legs of the inverter switches. The sensorless control with the phase currents dectection is implemented with DSP. It is verified through the experiment that the estimated rotor position tracks the real rotor position at the low speeds and high speeds operation with flux weakening.
영구 자석 매립형 BLDC Motor의 Sensorless 제어기 설계
김학원(Hag-Wone Kim),안준호(Jun-Ho Ahn),양순배(Soon-Bae Yang),조관열(Kwan-Youl Cho),김정철(Jung-Chul Kim) 전력전자학회 1997 전력전자학술대회 논문집 Vol.1997 No.-
The Inverter fed BLDC(Brushless DC) motor has been increasingly applied to industry and horne appliances due to the advance of power electronics and permanent magnet technology, and its high efficiency and good acoustic noise characteristics The BLDC<br/> motor and drives, however, require the rotor position sensors that may cause some problems such as the high cost and space<br/> In this paper, sensorless algorithm for an interior permanent magnet BLDC motor is proposed The<br/> maximum torque per ampere operation with advance angle considering load torque and speed was simulated and verified through the experiment