• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2012년도 추계학술대회 논문집
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• pp.522-527
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• 2012

This paper presents a result of the mechanical noise and vibration analysis as well as the electrical characteristics analysis of the permanent magnet (PM) motor according to the driving method that is Brushless DC (BLDC) drive and Brushless AC (BLAC) drive. To do that, the characteristics of the PM motor, which have the same output power but different driving method, are investigated. At that time, the characteristics such as torque, torque ripple and flux density, and so on, are obtained by finite element analysis (FEA). Besides, noise and vibration are obtained by spectrum analysis. The magnetic noise is defined as noise generated from vibrations due to electromagnetic excitation force. In this paper, the electromagnetic excitation force is analyzed and design process of noise reduction is proposed. Finally, The validity of the analysis results is verified by test.

• 전력전자학회논문지
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• 제10권6호
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• pp.534-542
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• 2005

본 논문은 퍼지제어기를 이용한 엘리베이터용 표면 부착형 영구자석 동기전동기의 벡터제어기법에 관하여 기술한다. PI제어기를 속도제어기로 사용하는 기존의 엘리베이터 시스템은 기계적 공진 때문에 게인값을 높은 값으로 선정하지 못하여 시스템의 성능이 떨어지는 단점이 있다. 이러한 점을 보완하기 위해 속도제어기에 가속도 피드백 루프를 추가하는 방법이 제안되었지만, 제어기의 구현을 위해 파라미터 정보가 필요하다는 단점을 가지고 있다. 본 논문에서는 속도제어기에 기존의 PI제어기 대신 퍼지제어기를 적용하여 벡터제어기법을 구현하였다. 퍼지제어기의 성능을 검증하기 위해 무부하 및 부하조건에서 시뮬레이션과 실험을 실시하여 PI제어기와 비교하였다.

• 전력전자학회:학술대회논문집
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• 전력전자학회 2016년도 전력전자학술대회 논문집
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• pp.533-534
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• 2016

본 논문은 차량용 Built-in 청소기용 SRM(Switched Reluctance Motor) 드라이브 시스템 개발에 대하여 설명한다. 기존의 청소기용 모터는 대부분 영구자석을 사용하는 PMSM 또는 BLDCM이다. 그러나 영구자석의 주 원료인 희토류 광물가격의 상승으로 인해 영구자석형 모터를 대체할 비 희토류 모터(SRM)에 대한 관심이 커지고 있다. 본 논문에서는 제작된 차량용 Built-in 청소기용 SRM의 유한요소해석 데이터를 바탕으로 한 Matlab/Simulink 시뮬레이션 및 실제 실험을 통하여 가능성을 검증하였다.

• 전기학회논문지
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• 제62권7호
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• pp.956-962
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• 2013

Recently, sensorless controls, which eliminate position and speed sensor in a permanent magnet synchronous motor drive, have been much studied. Most sensorless control algorithms are based on the back-EMF and speed estimations which are obtained from the voltage equations. Therefore, the sensorless control performance is largely affected by the parameter errors of a motor. This paper investigates a novel adaptive control with the parameter error compensation for the speed sensorless control of a permanent magnet synchronous motor. The proposed parameter estimation is obtained from the d-axis current error between the real and estimated currents. The proposed algorithm is verified through the simulation and experimentation.

• 조명전기설비학회논문지
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• 제26권11호
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• pp.109-115
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• 2012

Recently, permanent magnet synchronous motor are applied to various applications. Because of the importance of high reliable operation in these areas, many research related to the fault detection and diagnosis of inverter system are conducted. So, a faults model for an inverter-driven permanent magnet synchronous motor is studied by using the fault current of motor according to switch open, which can be effectively used for performance evaluation of the diagnostic algorithm. And fault of the permanent magnet synchronous motor inverter drive system is divided into four types. The feasibility of the proposed method are improved by simulation and experiment.

• 조명전기설비학회논문지
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• 제27권12호
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• pp.114-124
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• 2013

Recently, the real time simulator to develop the inverter drive board and motor control algorithm for high power induction motor and PM synchronous motor is required. In this paper, the real time simulator based on the voltage control for a PM synchronous motor is proposed. The resistor, inductor, and the induced voltage for the modeling of a PM synchronous motor is implemented by the power converter including the LCL filter and the PWM rectifier. The induced voltage of a PM synchronous motor is simulated by the capacitor voltage of the LCL filter, which is controlled by PI voltage controller and the deadbeat current controller. The operation and the simulated characteristics of the proposed real time simulator for a PM synchronous motor is verified by the simulation.

• Journal of Power Electronics
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• 제9권2호
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• pp.207-214
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• 2009

This paper presents a modem approach for speed control of a PMSM using the Particle Swarm Optimization (PSO) algorithm to optimize the parameters of the PI-Controller. The overall system simulated under various operating conditions and an experimental setup is prepared. The use of PSO as an optimization algorithm makes the drive robust, with faster dynamic response, higher accuracy and insensitive to load variation. Comparison between different controllers is achieved, using a PI controller which is tuned by two methods, firstly manually and secondly using the PSO technique. The system is tested under variable operating conditions. Implementation of the experimental setup is done. The simulation results show good dynamic response with fast recovery time and good agreement with experimental controller.

• 전력전자학회:학술대회논문집
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• 전력전자학회 2010년도 하계학술대회 논문집
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• pp.524-525
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• 2010

본 논문에서는 압축기 구동용 센서리스 제어 영구자석 동기전동기 구동장치에서 일반적으로 사용되는 동기가속 기동 방식의 문제점을 살펴보고, 부드럽게 영구자석 동기전동기를 기동할 수 있는 방법에 대해 소개한다.

• 전력전자학회:학술대회논문집
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• 전력전자학회 2013년도 전력전자학술대회 논문집
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• pp.92-93
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• 2013

본 논문에서는 토크 예측제어 기반의 영구자석 동기전동기의 센서리스 속도 제어기법을 제안한다. 제안한 기법은 Reduced-Order Observer를 이용한 센서리스 방식으로 저속영역에서 불안정해지는 일반적인 센서리스의 단점을 보완하여 저속영역에서도 안정된 속도추정이 가능하다. 또한 토크 예측제어 방식을 사용하여 영구자석 동기전동기의 빠른 응답성과 토크리플 저감 효과를 얻을 수 있다. 제안된 제어기법은 시뮬레이션을 통하여 타당성을 확인한다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2005년도 춘계학술대회 논문집 전기기기 및 에너지변환시스템부문
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• pp.207-209
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• 2005

Recently, the use of IPMSM is coming to be active, in many industrial applications. In sensorless drive of IPMSM, it is important to know the exact information of the initial rotor position, because the wrong estimation of the initial rotor position brings about the decrease of the starting torque, or a temporary reverse revolution, In addition, PMSM is necessary to use the accurate information of the inductance for the precise torque control owing to the reluctance torque. In this paper presents initial rotor position estimation method and, measure method of the each-axis inductance. And to minimize the speed estimations error, the estimated speeds are compensated by using an instantaneous reactive power in synchronously rotating reference frame.