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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
Journal Basic Information
Journal DOI :
The Korean Institute of IIIuminating and Electrical Installation Engineers
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Volume & Issues
Volume 25, Issue 12 - Dec 2011
Volume 25, Issue 11 - Nov 2011
Volume 25, Issue 10 - Oct 2011
Volume 25, Issue 9 - Sep 2011
Volume 25, Issue 8 - Aug 2011
Volume 25, Issue 7 - Jul 2011
Volume 25, Issue 6 - Jun 2011
Volume 25, Issue 5 - May 2011
Volume 25, Issue 4 - Apr 2011
Volume 25, Issue 3 - Mar 2011
Volume 25, Issue 2 - Feb 2011
Volume 25, Issue 1 - Jan 2011
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A Study on Optical Losses for Tubular LED Lamp's Components
Jeong, Hee-Suk ; Park, Chang-Kyu ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 25, issue 7, 2011, Pages 1~8
DOI : 10.5207/JIEIE.2011.25.7.001
The high efficiency tubular LED lamp has been developed. But, it occurs optical losses in consists of LED package, module, diffuser etc.. By Measuring the tubular LED lamp's luminous flux, we compared and analyzed about the effect of optical losses for each component and actually using measured luminous intensity distribution data, illuminance distribution was simulated by Relux. Optical losses are 24[%] from LED package to luminaire and the tubular LED lamp can be replaced with fluorescent lamp. In this paper, we could provide data for optimum lighting design by analyzing the optical characteristics for developing and propagating the tubular LED lamp.
Optical Gain Measuring System in the Laser Discharge using Feedback Light
Choi, Sang-Tae ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 25, issue 7, 2011, Pages 9~14
DOI : 10.5207/JIEIE.2011.25.7.009
A spectroscopic measuring system was developed in order to determine optical gain of gas laser discharge for any optical transitions between 190[nm] and 800[nm] without laser resonator. With an image optical system and a feedback optical system emission light of laser discharge are entered in a monochromator and received at a photomultiplier. Subsequently optical gain and line intensity are measured.
Efficiency Optimization Control of IPMSM Drive using SPI Controller
Ko, Jae-Sub ; Chung, Dong-Hwa ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 25, issue 7, 2011, Pages 15~25
DOI : 10.5207/JIEIE.2011.25.7.015
This proposes an online loss minimization algorithm for series PI(SPI) based interior permanent magnet synchronous motor(IPMSM) drive to yield high efficiency and high dynamic performance over wide speed range. The loss minimization algorithm is developed based on the motor model. In order to minimize the controllable electrical losses of the motor and thereby maximize the operating efficiency, the d-axis armature current is controlled optimally according to the operating speed and load conditions. For vector control purpose, a SPI is used as a speed controller which enables the utilization of the reluctance torque to achieve high dynamic performance as well as to operate the motor over a wide speed range. Also, this paper proposes current control of model reference adaptive fuzzy controller(MFC), and estimation of speed using artificial neural network(ANN) controller. The proposed efficiency optimization control, SPI, MFC, ANN in this paper is applied to IPMSM drive system, the validity of this paper is proved by analyzing response characteristics in variety operating conditions.
Torque Characteristics Analysis of Synchronous Reluctance Motor by Winding Function Theory
Woo, Kyung-Il ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 25, issue 7, 2011, Pages 26~31
DOI : 10.5207/JIEIE.2011.25.7.026
In this paper, torque characteristics analysis of Synchronous Reluctance Motor with the cylindrical rotor type by winding function theory(WFT) is described. The stator is same as one of the induction motor. From the d-axis, q-axis flux density distribution, to calculate self and mutual inductances needed to calculate the torque of the machine by using winding function theory the new equivalent geometry of rotor was proposed. D-axis, q-axis flux densities, self inductance and torque characteristics were obtained. From the comparison with results of finite element analysis the proposed method was verified.
Full-Bridge DC/DC Converter for NBI Filament Power Supply
Jun, Bum-Su ; Lee, Se-Hyung ; Lee, Hee-Jun ; Sin, Soo-Cheol ; Lee, Seung-Kyo ; Won, Chung-Yuen ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 25, issue 7, 2011, Pages 32~39
DOI : 10.5207/JIEIE.2011.25.7.032
FPS(Filament Power Supply), one of the KSTAR NBI(Neutral Beam Injections) is implemented by full-bridge DC/DC converter. NBI heating device for KSTAR(1.5MW) is developed for heating an ion source of plasma in KSTAR tokmak. The full-bridge DC/DC converter is applied to FPS for isolation with input and output. And FPS is operated with PWM control method which is the most usual method. In this paper, NBI FPS of 4.8kW is simulated by using the PSIM 6.0. And the full-bridge DC/DC converter using IGBTs is fabricated to demonstrate it. The processor DSP 28335 is implemented for digital control.
Steam Temperature Control of Attemperator in Thermal Power Plant
Shin, Hwi-Beom ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 25, issue 7, 2011, Pages 40~48
DOI : 10.5207/JIEIE.2011.25.7.040
An attemperator is a part of the 4-stage superheater in the boiler system of the thermal power plant. The attemperator receives the over-heated steam and makes the steam with proper temperature by adjusting the control valve of the cold steam. In this paper, the attemperator is modeled considering physical point of view and the linearized model is derived for the control purpose. To overcome the integral windup phenomenon due to the opening limitation of the control valve, an anti-windup PI controller is proposed to the attemperator and compared with the PI controller operated in the thermal power plant in view of control performance.
The Intrinsic Safety Evaluation of Solar Photovoltaic Cell
Lee, Chun-Ha ; Jee, Seung-Wook ; Kim, Si-Kuk ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 25, issue 7, 2011, Pages 49~54
DOI : 10.5207/JIEIE.2011.25.7.049
Now the world will regulate the CO2 emission due to environmental issues. For an alternative plan photovoltaic system is watched. So, photovoltaic system is trend of big city and it is mandatory for renovation of construction. Oil & gas filling station existed in city is suitable to found the photovoltaic system. But the general photovoltaic system in oil & gas filling station is difficult to found because it is classified into hazardous area. This paper evaluates intrinsic safety evaluation of solar cell for making basic data to found for the photovoltaic system on hazardous area. The intrinsic safety characteristic is evaluated by short-circuit ignition test using IEC type spark ignition test apparatus and temperature rising test. The result of short-circuit ignition test, propane-air mixture gas is exploded on condition that 4 solar cells(9[V], 90[mA]) are connected serially under insolation 800[W/
]. So, if a larger solar module will be used at oil & gas filling station than we were tested, it needs explosion proof. As the result of rising temperature test, the temperature rising due to short circuit is not so much, but when the temperature rises due to radiant heat, it demands careful consideration for environmental influence.
The Development & Performance Test of 10[kW] Power Conditioning System for Microgrid
Lee, Hak-Ju ; Chae, Woo-Kyu ; Park, Jung-Sung ; Kim, Ju-Yong ; Kim, Chan-Young ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 25, issue 7, 2011, Pages 55~62
DOI : 10.5207/JIEIE.2011.25.7.055
PCS(Power Conditioning System) is the necessary component in Microgrid, composed of multiple distributed generators and energy storage system. In this paper, the functions of PCS are defined and 10[kW] PCS for PV and BESS are developed. To apply PCSs to Microgrid, this paper presents a 3-phase inverter with the decoupling current controller, voltage controller and DPLL control system. PCSs were applied to 120[kW] pilot plant and its performance tests were carried out. Test results of PCS at each operation mode show stable in Microgrid.
A Study on the Development of Testing Models and Its Design System for the Comprehensive Performance Test of the Substation Automation System
Lee, Nam-Ho ; Jang, Byung-Tae ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 25, issue 7, 2011, Pages 63~71
DOI : 10.5207/JIEIE.2011.25.7.063
Due to the rapid development of digital technnology and informantion communication, in the IEC 61850 based substation automation system, the innovative paradigm shift is expected and also required in many substation-related jobs, especially in the device function test area Accordingly a common testing model which can simplify the complex contents of the SAS performance test performed by test engineers has been identified, that can overcome limitations of engineers' own testing knowledge and experience. Testing models and its design system for the comprehensive performance test of the Substation Automation System is developed and the result of the study is reported in this paper.
A Design for Dynamic Line Rating System to increase Overhead Transmission Line Capacities
Kim, Sung-Duck ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 25, issue 7, 2011, Pages 72~77
DOI : 10.5207/JIEIE.2011.25.7.072
Dynamic Line Rating (DLR) techniques have been greatly worthy of notice for efficiently increasing transmission capacity as well as controlling load-flow in overhead transmission lines, in comparison with the existing power system operating with Static Line Rating (SLR). This paper describes an utilization method to implement DLR control system for old transmission lines built in the first stage using the ground clearance design standard with lower dips. The suggested DLR system is focused on designing as temperature control system rather than current/load control system. Based on several performance for conductor temperatures, it is shown that DLR system with efficiency can be implemented.
Design of Magnetic Field Compensation System Model for AC Magnetic Field Shielding
Choi, Hak-Yun ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 25, issue 7, 2011, Pages 78~82
DOI : 10.5207/JIEIE.2011.25.7.078
In this paper, magnetic field compensation system with an open architecture and can be installed indoors is designed and measured by fabricated. To verify the shielding effectiveness, two rectangular helmholtz coils with 3-axis are fabricated to generate magnetic field and measured magnetic field inside compensation coil for 1~60[Hz], According to measurements, AC shielding effectiveness of compensation system is 96[%] of 1[Hz], 95[%] of 30[Hz] and 90[%] of 60[Hz]. The performance of system therefore can be used as the magnetically shielded room for medical and industrial field.
Deflective Behavior of Charged Particles in a Two-Stage Electrostatic Precipitator
Lim, Hun-Chan ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 25, issue 7, 2011, Pages 83~91
DOI : 10.5207/JIEIE.2011.25.7.083
Even if smoke, fumes, mist or dust particles are removed by electrostatic precipitators (ESPs), the occurrence of ozone, which is harmful to human body, has to be severely restricted in the indoor environments of hospitals, offices, and workshops. Therefore, the two-stage ESP generating positive corona at the ionizer is typically used because it creates less ozone than the two-stage ESP generating negative corona at the ionizer. In order to predict the collection performance and the optimal design of the two-stage ESP applied to positive high-voltage, particle concentration is experimentally investigated in this paper. In addition, particle motion within the collector section is also numerically analyzed. The positive corona discharge current of the ionizer is found to be affected by the applied voltage in the collector section but less so by the particle concentration. Particle concentration shows a minimum near the high voltage electrode of the collector section. The minimum value of the collection efficiency is almost proportional to gas velocity. When the collector length decreases, the minimum value of the collection efficiency increases. Charged particles entering the collector region are linearly deflected towards the grounded plate by an electric field. From the above experimental and numerical results, two empirical equations on the concentration ratio and the collection efficiency are derived, and are in good agreement with the experimental data.
Development of Single Phase Cabinet Panel with Electrical Safety Monitoring System by Mobile
Kim, Gi-Hyun ; Lee, Sang-Ick ; Shin, Seong-Su ; Bae, Suk-Myong ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 25, issue 7, 2011, Pages 92~96
DOI : 10.5207/JIEIE.2011.25.7.092
In this paper, in order to reduce the electrical disaster such as electrical fire at traditional markets, we need to develop the ESMS(electrical safety monitoring system) which is able to monitor the power status of electrical equipments. Therefore, for solving the those problems, we developed the detection censor(ZCT, CT) and equipment of data analysis and transmission. The detection censor and equipment are able to monitor the electrical equipments condition(over current, leakage current, arc, etc.). We constructed Test-Bed for testing reliability of the ESMS and obtained certification. And we tested the over current, leakage current and arc under the normal condition.
Modeling and Control of IGBT Converter-Based High-Voltage Direct Current System
Kim, Hong-Woo ; Ko, Suk-Whan ; An, Hae-Joon ; Jang, Gil-Soo ; Ko, Hee-Sang ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 25, issue 7, 2011, Pages 97~104
DOI : 10.5207/JIEIE.2011.25.7.097
This paper presents modeling and control for the emerging IGBT converter-based high-voltage direct-current system (IGBT-HVDC). This paper adds to the representation of the IGBT-HVDC system in the dq-synchronous reference frame and its decoupled control scheme. Additionally, since the IGBT-HVDC is able to actively support the grid due to its capacity to control independently active and reactive power production, a reactive power control scheme is presented in order to regulate/contribute to the voltage at a remote location by taking into account its operational state and limits. The ability of the control scheme is assessed and discussed by means of simulations using ahybrid power system, which consists of a permanent magnetic synchronous-generator (PMSG) based wind turbine, an IGBT-HVDC, and a local load.
Equivalent three-phase synthetic making test for medium voltage circuit breaker of distribution system using DC power
Park, Byung-Rak ; Jo, Man-Yong ; Kim, Jin-Seok ; Shin, Hee-Sang ; Kim, Jae-Chul ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 25, issue 7, 2011, Pages 105~113
DOI : 10.5207/JIEIE.2011.25.7.105
The study about three-phase synthetic making test using DC power has been performed in order to increase the making test capacity on Vacuum Circuit Breaker. And, it made possible to solve the limitations that short-circuit testing facilities can not fulfill the testing requirements of VCB exceeding three-phase 36[kV] 31.5[kA]. By using DC power and high speed spark-gap switch, this method made the equivalence with the pre-arc that occurred during the making process under the fault condition of power system. As results, KERI(Korea Electrotechnology Research Institute) could have capacity to carry out type test for VCB under three-phase 52[kV] 40[kV], which satisfies the IEC Standard.