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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
Editor in Chief :
Volume & Issues
Volume 28, Issue 12 - Dec 2014
Volume 28, Issue 11 - Nov 2014
Volume 28, Issue 10 - Oct 2014
Volume 28, Issue 9 - Sep 2014
Volume 28, Issue 8 - Aug 2014
Volume 28, Issue 7 - Jul 2014
Volume 28, Issue 6 - Jun 2014
Volume 28, Issue 5 - May 2014
Volume 28, Issue 4 - Apr 2014
Volume 28, Issue 3 - Mar 2014
Volume 28, Issue 2 - Feb 2014
Volume 28, Issue 1 - Jan 2014
Selecting the target year
A Study on the Extraction of Correlated Color Temperature, Illuminance, Control Speed under Controllable LED Lighting in the Kitchen Space
Lee, Jin-Sook ; Jeong, Chan-Ung ; Park, Ji-Young ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 28, issue 5, 2014, Pages 1~14
DOI : 10.5207/JIEIE.2014.28.5.001
This study has found out appropriate scopes of correlated color temperature and illuminance value with regard to general diffused lighting and work in the kitchen. It also has presented appropriate photometric quantity control speed for behavioral change with the following results. 1)For general diffused lighting, the appropriate photometric quantity has turned out to be 4,000 to 4,500K in color temperature and illuminance value of 300 to 400lx. And 300lx at 4,500K has proven to be the most comfortable, behavior-appropriate, and preferred pair. 2)As far as appropriate photometric quantity for work is concerned, color temperature of 4,000 to 5,000K and illuminance value of 600 to 800lx are appropriate, while 700lx at 4,500 to 5,000K are the most comfortable, behavior-appropriate, and preferred set. 3)As for appropriate photometric quantity control speed in behavioral change, 3 to 5 seconds has proven the most comfortable, appropriate, and preferred for behavioral change from entry to general areas and 1 to 3 seconds for change from general to work.
A Study on Performance Improvement of Automobile Cruise Control System : Disturbance Observer Approach
Yang, Eun-Ji ; Jo, Nam-Hoon ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 28, issue 5, 2014, Pages 15~22
DOI : 10.5207/JIEIE.2014.28.5.015
The automobile cruise control system tries to maintain a constant velocity in the face of disturbance mainly caused by mass changes or changes in the slope of a road. The controller should compensate for such disturbances and model uncertainties. In this paper, we study on the disturbance observer based controller for cruise control system. In the presence of disturbances and model uncertainties, we carry out computer simulations in order to compare the performance of the conventional PI controller and DOB controller. From the simulation results, we found that the performance of DOB controller is superior to that of the conventional PI controller.
Development of Online Monitoring System for Induction Motors
Kim, Ki-Bum ; Youn, Young-Woo ; Hwang, Don-Ha ; Sun, Jong-Ho ; Jung, Tea-Uk ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 28, issue 5, 2014, Pages 23~30
DOI : 10.5207/JIEIE.2014.28.5.023
This paper presents an on-line diagnosis system for identifying health and faulted conditions in squirrel-cage induction motors using stator current, temperature, and partial discharge signals. The proposed diagnosis system can diagnose induction motor faults such as broken rotor bars, air-gap eccentricities, stator winding insulations, and bearing faults. Experimental results obtained from induction motors show that the proposed system is capable of detecting induction motor faults.
Configuration of PV System for Improved Efficientcy Using PV Current Control of MPPT
Yoo, Yang-Woo ; Seo, Deok-Hyun ; Kim, Yoo-Ha ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 28, issue 5, 2014, Pages 31~38
DOI : 10.5207/JIEIE.2014.28.5.031
Maximum power point tracking method is very important to enhance efficiency of photovoltaic system. Meanwhile a lot of research about MPPT has been studied and developed new one better than a method of the past. This paper deals with Perturb and Observation that are most commonly used. Tracking parameter changed PV voltage for PV current and it was simulated with P-SIM program. The P&O tracking method to use current for parameter lows ripple rate of output and enhances response rate of tracking. Through this study, it has been demonstrated that method using current for tracking parameter is effective.
Design and Analysis of Direct-Coupled, Small-Scaled Permanent Magnet Generator for Wind Power Application
Kim, Il-Jung ; Choi, Jang-Young ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 28, issue 5, 2014, Pages 39~51
DOI : 10.5207/JIEIE.2014.28.5.039
This paper deals with design of a direct-coupled, small-scaled permanent magnet generator (PMG) for wind power application. First, this paper determines rated power and speed of the PMG from measured characteristics of wind turbines. Second, we derive analytical solutions for the open-circuit field in order to determine optimum magnet thickness and pole pitch/arc ratio. Third, on the basis of open circuit field solutions, stator magnetic circuit including slot opening, teeth width and yoke thickness is designed. And then, a diameter of stator coil which agree with a required current density is calculated, and its turns are determined from the area of slot considering winding packing factor. Finally, finite element (FE) method is employed in analyzing the details of the designed PMG and, test results such as back-emf measurements are given to confirm the design.
Operating Characteristics of Squirrel-Cage Induction Motor of 5-Phase 1.5kW
Kim, Min-Huei ; Jung, Hyung-Woo ; Song, Hyun-Jig ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 28, issue 5, 2014, Pages 52~59
DOI : 10.5207/JIEIE.2014.28.5.052
This paper presents an improved operating characteristics of squirrel-cage induction motor(IM) for 5-phase 1.5kW, 220V, 60Hz in order to study a polyphase AC machinery that keep hold of advantages more than traditional three-phase a IM, such as reducing a amplitude of torque pulsation, decreasing electric noises, and increasing the reliability. The developed manufacturing motor was necessary to do improvement of speed regulation, efficiency, operating characteristics, and so on at rated load. There are remake a redesigned and distributed stator winding connection without changing the frames of stator and rotor core in previous established the motor by a repeat tests. There are shown a experiments results of no-load test, locked rotor test, operating characteristics at variable load, FFT analysis of harmonics within output voltages and current waveform, decided motor parameters.
Fault prediction of wind turbine and Generation benefit evaluation by using the SVM method
Shin, Jun-Hyun ; Lee, Yun-Seong ; Kim, Sung-Yul ; Kim, Jin-O ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 28, issue 5, 2014, Pages 60~67
DOI : 10.5207/JIEIE.2014.28.5.060
Wind power is one of the fastest growing renewable energy sources. The blades length and tower height of wind turbine have been growing steadily in the last 10 years in order to increase the output amount of wind power energy. The amount of wind turbine energy is increased by increasing the capacity of wind turbine, but the costs of preventive, corrective and replacement maintenance are also increased accordingly. Recently, Condition Monitoring System that can repair the fault diagnose and repair of wind turbine in the real-time. However, these system have a problem that cannot predict and diagnose of the fault. In this paper, wind turbine predict methodology is proposed by using the SVM method. In the case study, correlation analysis between wind turbine fault and external environmental factors is performed by using the SVM method.
Energy Coordination between Cascaded Voltage Limiting Type SPDs in Surge Currents due to Direct Lightning Flashes
Lee, Bok-Hee ; Um, Sang-Hyun ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 28, issue 5, 2014, Pages 68~75
DOI : 10.5207/JIEIE.2014.28.5.068
Cascaded applications of surge protective devices(SPDs) are required in order to reduce the stress on the electrical and electronics equipment being protected, and the energy coordination between the cascaded SPDs is very important. This paper deals with the experimental results obtained from the installation conditions of full-scale SPDs. The energy coordination between the upstream Class I SPD and the downstream Class II SPD was measured using a
impulse current due to direct lightning flashes. The distances between the cascaded SPDs were 3, 10, and 50m, and the maximum test current was 12.5kA. As a result, the energy sharing between cascaded SPDs was dependent on the voltage protection level of each SPD and the distance between two SPDs. An overview of how to select SPD ratings in applications of cascaded SPDs system was discussed based on the energy coordination between the two SPDs. The proposed test results for the energy coordination between two-stage cascaded SPDs can be used in effective applications of SPDs.
A Characteristic Analysis of Ozone Generator Using the Al
Ceramic Dielectric According to Gas Type(O
Park, Hyun-Mi ; Song, Hyun-Jig ; Park, Won-Joo ; Lee, Kwang-Sik ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 28, issue 5, 2014, Pages 76~81
DOI : 10.5207/JIEIE.2014.28.5.076
The ozone generation is commonly made with silent discharge method using quartz glass dielectric. In this paper, using
dielectric to instead of the traditional quartz glass dielectric to improve the system efficiency is presented. The dielectric was manufactured as tube shape (Internal diameter
) using 99%
ceramic. The characteristics of dielectric discharge and ozone generation were studied of experiments with variation of discharge power, discharge electrode space and rate of flow for supplied gas (
/Air). As the experimental results, in the same discharge space, the ozone concentration continuously increased with input power increasing, and ozone yield increased until saturation happened. Also, the expended power increased with discharge space extended due to discharge power increased. In additional, the ozone concentration of oxygen ozone was higher than air that was observed when using oxygen ozone in proposed experiments.
A Study on the ESS Integration Plan with Inner PCS of Wave-Offshore Hybrid Generation System for Maximizing Power Profile Stability
Jung, Seungmin ; Kim, Hyun-Wook ; Yoo, Yeuntae ; Jang, Gilsoo ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 28, issue 5, 2014, Pages 82~91
DOI : 10.5207/JIEIE.2014.28.5.082
The combined generator system by integrating several renewable energy sources can share the electrical infrastructure and therefore have the advantage of constructing not only the transmission system but also the power conversion system. Among the various combined renewable system, the wind power and wave power has a high possibility of future growth due to the economic feasibility in offshore environment. This kind of large-scale combined systems might be follow the determination by the transmission system operator's directions and control the output profile by focusing at PCC. However, both renewable energies are depend on the unpredictable environmental variation; it is needed to do the compensation devices. In this paper, the ESS compensation plan is proposed to do output determination of the combined generator system by paying attention to active power of utility grid with the analysis of the controllable elements of the wind and wave power generator. The improvement of the new application technique of the combined system is confirmed through using the PSCAD/EMTDC. The entire simulation process was designed by adopting the active power control according to the reference signal of TSO.
A Study on the Comparison of SRMs with 3 Rotor Poles
Bae, Jun-Kyung ; Oh, Seok-Gyu ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 28, issue 5, 2014, Pages 92~97
DOI : 10.5207/JIEIE.2014.28.5.092
The SRM is a doubly salient, singly excited machine. The torque is developed by the tendency for the magnetic circuit to adopt a configuration of minimum reluctance, i.e. for the rotor to move into in line with the stator poles and to maximize the inductance of the coils excited. It is common practice to combine them into groups of poles which are excited simultaneously; for example, 8/6 SRM (8 stator poles and 6 rotor poles) for 4 phases, 6/4, 12/8 SRM for 3 phases, 4/2, 6/3 SRM for 2 phases. Small number of phases in two-phase SRMs allows more cost savings with regards to the switching devices in the converter. The stator back irons of two phase 6/3 SRM and C-core 4/3 SRM does not experience any flux reversal as the flux is in the same direction whether phase A or B is excited. In this study, the similarities, the differences, and structural characteristics between the two SRMs was studied, The magnetic analysis also has been carried out by the finite element method analysis (FEM).
Effects of Soil Discharges on the Impulsive Ground Impedance of Ground Rod with Needles
Yoo, Yang-Woo ; Cho, Sung-Chul ; Lee, Bok-Hee ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 28, issue 5, 2014, Pages 98~105
DOI : 10.5207/JIEIE.2014.28.5.098
Soil discharges near the ground rod play an important role to reduce the ground potential rise and the ground impedance and to help the fault current to spread into the earth. This paper presents the effects of soil discharges on the transient and conventional ground impedances when the lightning impulse voltage was applied to a ground rod with radial needles. The current-voltage (I-V)curves and transient ground impedance curves were calculated based on the measured current and potential traces. Soil discharge behaviors related to I-V curves and transient ground impedance curves were analyzed as a function of the magnitude of lightning impulse voltages. As a result, the soil discharges occurred near the ground electrode contribute to the reduction of conventional ground impedance and limits the ground potential rise effectively under lightning impulse voltages.
Design to Reduce Cost and Improve the Mechanical Durability of IPMSM in Traction Motors
Lee, Ki-Doek ; Lee, Ju ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 28, issue 5, 2014, Pages 106~114
DOI : 10.5207/JIEIE.2014.28.5.106
The interior permanent-magnet synchronous motor (IPMSM) is often used for the traction motor of hybrid electric vehicles (HEVs) and electric vehicles (EVs) due to its high power density and wide speed range. This paper introduces the 120kW class IPMSM for traction motors in military trucks. This system, as a SHEV (series hybrid electric vehicle), requires a traction motor that can generate high torque. This study introduces a way to reduce costs by proposing a design approach that creates reluctance torque that can be maximized by varying the dq-axis inductance. If a model designed by a design approach meets the desired torque, the magnetic torque can be reduced by an amount equal to the increase in reluctance torque and consequently the amount of permanent magnets can be reduced. A reduction gear and high speed operation of motors are necessary for the miniaturization of the motor. Thus, a fairly large centrifugal force is generated due to the high speed rotation. This force causes mechanical interference between the rotor and the stator, and a design approach for adding an iron bridge is explained to solve the interference. In this study, the initial model and the improved model that reduces cost and improves mechanical durability are compared by FEA, and the models are produced. Finally, the FEM results were verified experimentally.
A Study on the Structure characteristics of two phase 4/3 SRM
Bae, Kang-Yul ; Oh, Seok-Gyu ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 28, issue 5, 2014, Pages 115~121
DOI : 10.5207/JIEIE.2014.28.5.115
The intrinsic simplicity, ruggedness, and simple power electronic drive requirement of a Switched Reluctance Motor(SRM) make it possible to use in many commercial adjustable speed application. The simple magnetic circuit results in a high efficiency drive and low temperature rise, and the drive system provides a good drive characteristics. This paper is provides two phase 4/3 SRM that is similar to two phase 6/3 SRM as aspect to magnetic structure. Although 6/3 SRM does not experience any flux reversal as the flux is in the same direction whether phase A or B is excited, but two phase 4/3 SRM experiences a flux reversal in small part of stator yoke. The flux reversal in two phase 4/3 SRM could be relieved by an adjustment of stator yoke structure. The magnetic analysis and design considerations of the two phase 4/3 SRM have been obtained by the finite element method analysis (FEM).
The 10kW Rapid Battery Charger for Electric Vehicle with Active Power Filter Function
Choi, Seong-Chon ; Song, Sang-Hoon ; Kim, Do-Yun ; Kim, Young-Real ; Won, Chung-Yuen ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 28, issue 5, 2014, Pages 122~133
DOI : 10.5207/JIEIE.2014.28.5.122
This paper deals with the rapid charger which is the mid-type between the slow and fast chargers in the aspect of charging time. In its functions, it can perform the Active Power Filter(APF) function without changing the topology besides the charging function. In addition, to perform the charging and APF function, this paper proposes the mode selection algorithm. The operation of the charger that has APF function and the mode selection algorithm are verified by the simulation and experiment.