• Proceedings of the KIPE Conference
• /
• 2003.11a
• /
• pp.178-181
• /
• 2003

This paper presents a position sensorless control system of Switched Reluctance Motor(SRM) using Neural Network. The basic algorithm of this scheme is based on the flux linkage characteristic according to the phase currents and rotor position. A sufficient experimental data was used for neural network training. The proposed position sensorless control system was realized using TMS320F240 DSP. The experimental result shows some good results, and verifies the possibility of this algorithm.

• KIEE International Transaction on Electrical Machinery and Energy Conversion Systems
• /
• v.5B no.4
• /
• pp.374-381
• /
• 2005

The ability to provide quality power has become a significant issue in power systems. The main causes of poor power quality are harmonic currents, poor power factor, supply-voltage variations, etc. A technique of achieving both active current distortion compensation, power factor correction and also mitigating the supply-voltage variation (sag or swell) at the load side is presented in this paper. The operation and rating issues of the proposed Single-phase Unified Power Quality Conditioner are also highlighted. To reduce the total cost while simultaneously increasing the performance, the system is fully digitally controlled using the fixed-point TMS320F240 digital signal processor. The performances of the UPQC, which is composed by shunt and series PWM controlled-converters, have been verified on a laboratory prototype.

• KIEE International Transaction on Electrical Machinery and Energy Conversion Systems
• /
• v.5B no.4
• /
• pp.324-330
• /
• 2005

The complex sensorless control scheme is not practical for use in the field of home appliance systems because it is not economical. Therefore, it is necessary to introduce a simplified sensorless control scheme that is composed of least calculation to estimate the rotor position. This paper presents the principle of the rotor position estimation with comparison of the estimated flux linkage and reference flux linkage. In order to verify the feasibility of the control scheme, ACSL is used for the simulation and TI DSP TMS320F240 is used for the experiment.

• Proceedings of the KAIS Fall Conference
• /
• 2006.05a
• /
• pp.284-287
• /
• 2006

본 논문에서는 dSPACE사의 PowerPC603e과 TMS320F240를 사용하는 dSPACE시스템에 의한 유도전동기 구동 시스템의 벡터제어에 대하여 소개한다. MATLAB/Simulink 소프트웨어와 DS1104 R&D 제어보드, Leroy SOMER사의 0.3KW 유도전동기와 IPM 인버터를 본 연구에 사용하였다. dSPACE 시스템은 Simulink 블록들을 사용함으로써 짧은 시간동안에 다양한 형태의 제어기를 설계 및 구현할 수 있는 장점이 있기 때문에 유도전동기의 벡터제어를 쉽게 설계하고 구현할 수 있다.

• Proceedings of the KIEE Conference
• /
• 2001.04a
• /
• pp.329-331
• /
• 2001

This paper representes a realization of a fuzzy logic speed controller for BLDC motor drives. Fuzzy sets are regulated by using parameters of BLDC motor. Simplified reasoning methods are used for defuzzification. Fuzzy logic speed controller is designed by using the high performance of DSPchip (TMS320F240). By experiment, it is confirmed that the speed of BLDC motor well follows an command speed in the load variables or low-speed area.

• Proceedings of the IEEK Conference
• /
• 2001.06e
• /
• pp.143-146
• /
• 2001

Servomotors, especially linear brushless servomotors have numerous advantages over ball screws, timing belts, rack/pinion drives and friction drives compared wi th rotary servomotors This paper proposes an linear regression method as the estimated ion of unknown parameters from the linear brushless DC motor The estimated parameters are used to tune the gain of controller. In order to agree with this purpose, Digital Signal Processor (TMS320F240), developed for implementation of the motor control, is adopted in this study. The processor playing an important role in controller has A/D converters, PWM generators, riched I/O ports internally.

• The Transactions of the Korean Institute of Power Electronics
• /
• v.5 no.3
• /
• pp.215-220
• /
• 2000

본 논문에서는 SRM운전에서 맥동토오크와 부하토오크의 변화로 인한 속도변경을 줄이기 위해 동적 도통각 제어 원리를 이용한 PLL(Phase Locked Loop) 속도제어 방식을 채택하였다. SRM은 많은 장점을 가지고 있으나 토오크리플에 따른 속도변동으로 정밀한 속도제어에 어려움이 있다. SRM 구동 시스템에 PLL을 적용한 결과 전동기는 강인한 정속도 운전을 할 수 있으며, 또한 운전속도에 따라 선행각을 조정함으로서 고효율 구동을 할 수 있었다. 구성된 시스템은 운전속도와 부하의 변화에 따라 선행각이 증가함으로써 뛰어난 동적 속도제어 특성을 갖고 있으며, 인버터 인가전압을 제어하는 선행각을 조정함으로서 일정부하 영역에서 높은 효율특성을 가진다. SRM 구동 시스템의 PLL 속도제어와 고효율 구동을 위한 도통각제어를 위해 TMS320F240 DSP를 사용함으로서 디지털 제어기의 유연성과 소형화를 꾀하였다.

• Proceedings of the KIPE Conference
• /
• 2001.07a
• /
• pp.163-166
• /
• 2001

In this paper, a two-level switching algorithm ov the deadbeat to control PWM inverter is proposed. A modified algorithm of the deadbeat is suitable for the UPS system. Two levels in the pulse pattern are used. This scheme allows the use of higher switching frequency for a given computation time delay, which results in lower total harmonic distortion at the output. The proposed control scheme is implemented using TMS320F240 DSP for controlling on inverter.

• Journal of Power Electronics
• /
• v.8 no.2
• /
• pp.131-140
• /
• 2008

This paper presents a new control approach of DSTATCOM (distribution static compensator) for compensation of reactive power, unbalanced loading and harmonic currents under unbalanced non-sinusoidal ac mains. The control of DSTATCOM is achieved using Adaline based current estimator based on LMS algorithm to maintain source currents real and undistorted. The dc bus voltage of voltage source converter (VSC) working as DSTATCOM is maintained at constant voltage using a proportional-integral (PI) controller. The DSTATCOM system alongwith proposed control scheme is modeled in MATLAB to simulate the behavior of the system. The practical implementation of the DSTATCOM is carried out using dSPACE DS1104 R&D controller having TMS320F240 as a slave DSP. Simulated and implementation results are presented to demonstrate the effectiveness of the DSTATCOM with Adaline based control to meet the severe load perturbations with different types of loads (linear and non-linear) under distorted and unbalanced AC mains.

• Proceedings of the KIEE Conference
• /
• 2005.07b
• /
• pp.1273-1275
• /
• 2005

This paper presents design of speed control system for slot less iron-cored PM linear synchronous motor using space vector PWM. the design must be considered by the useable limits of the DC link voltage and dynamic operating rage as well as the characteristics of design parameters in a point of system. Therefore, in this paper, the permissible operating range of manufactured motor by determination of rate speed and rate thrust according to switching scheme of DC link voltage are offered. The vector control requires information about rotor position. And we can need to the Hall sensor for sampling current. In order to agree with this purpose, Digital Signal Processor(TMS320F240x) developed for implementation of a speed Field Oriented Control.