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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 27, Issue 12 - Dec 2013
Volume 27, Issue 11 - Nov 2013
Volume 27, Issue 10 - Oct 2013
Volume 27, Issue 9 - Sep 2013
Volume 27, Issue 8 - Aug 2013
Volume 27, Issue 7 - Jul 2013
Volume 27, Issue 6 - Jun 2013
Volume 27, Issue 5 - May 2013
Volume 27, Issue 4 - Apr 2013
Volume 27, Issue 3 - Mar 2013
Volume 27, Issue 2 - Feb 2013
Volume 27, Issue 1 - Jan 2013
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Development of Optical Fiber Hydrogen Sensor Based on Polarization-Diversity Loop Configuration Using Pd-Coated Polarization-Maintaining Fiber
Noh, Tae-Kyu ; Kim, Young-Ho ; Lee, Yong-Wook ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 27, issue 3, 2013, Pages 1~6
DOI : 10.5207/JIEIE.2013.27.3.001
In this study, we propose a fiber-optic hydrogen sensor using a polarization-diversity loop configuration composed of a polarization beam splitter, two quarter-wave plates, and a polarization-maintaining fiber coated with palladium whose thickness is ~400nm. One transmission dip of the output interference spectrum of the proposed sensor, chosen as a sensor indicator, was observed to spectrally shift with the increase of the hydrogen concentration, and the sensing indicator showed a wavelength shift of ~2.48nm at a hydrogen concentration of 4%. Except for a hydrogen concentration of 4%, the response time of the proposed sensor was measured as less than 12.5s and did not show significant dependence on the hydrogen concentration. In particular, the proposed fiber hydrogen sensor is more durable and highly resistant to external stress applied on a transverse axis of an optical fiber, compared with other hydrogen sensors based on side-polished fibers or fiber gratings.
A Study on the Calculation of Maintenance Factor(MF) of Tunnel Lighting in Expressway Considering the Actual Installation and Maintenance Conditions
Lee, Min-Wook ; Park, Kwang-Yong ; Kim, Pil-Young ; Park, Yong-Jin ; Kim, Hoon ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 27, issue 3, 2013, Pages 7~15
DOI : 10.5207/JIEIE.2013.27.3.007
In lighting design, the calculation of maintenance factor is performed by calculation considering light source, characteristics of luminaire and environmental factors. The method to calculate the current maintenance factor applied to tunnel lighting design takes into consideration only pollution factors in tunnels. In addition, the calculation method should be change in response to changes of tunnel conditions and used light sources. In this study, the calculated factor of the maintenance factor in tunnel is determine by four calculation factors generally applied to the calculation of maintenance factor. This study examined the method of calculating the maintenance factor of tunnel lighting that can be applied according to the installation conditions in designing tunnel lighting by applying the actual installation data of luminaire.
Low-Cost LED Driver Circuit using Power Factor Compensation Capacitor of Discharge Lamp
Ko, Jae-Ha ; Hwang, Jung-Goo ; Park, Seong-Mi ; Park, Sung-Jun ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 27, issue 3, 2013, Pages 16~25
DOI : 10.5207/JIEIE.2013.27.3.016
Now it`s a trend to install a series of white fluorescent light and orange high pressure sodium lamps because tunnel lighting should be opaque to the safety of drivers from soot, dust, humidity, and fog. Also fluorescent lighting is replaced to LED due to the fact that it improves amenity and object recognition and LED lighting has gradually been improved its nature. In this paper, we have implemented the circuits of the yellow series of high-pressure sodium lamps and white series of LED lights at one board to improve the transparency and recognition of objects. It is possible for inductive high-pressure sodium lamps and the capacitive LED drivers to circuit without power factor compensation. Two circuit parts share only a small number of parts, so low cost LED drivers compared to conventional ones are possible. Therefore, the implementation of the hybrid lighting with high-pressure sodium lamps and LED lights that can be driven at the same time by one driving circuit is possible. The LED capacitive power factor was 0.91 while individually implemented the sodium lamp power factor was 0.98. It shows not only the 2% improvement of hybrid forms but also the efficiency and THD.
A Study of Lighting Environment to Improve the Visibility of Crosswalk in Rural Highway
Lee, Mi-Ae ; Lee, Suck-Ki ; Lee, Dong-Hee ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 27, issue 3, 2013, Pages 26~35
DOI : 10.5207/JIEIE.2013.27.3.026
According to traffic accidents-related statistics, 57.6 percent of the fatality of vehicle-to-pedestrian accident, occurred on crosswalk in rural highways. Ministry of Land, Transport and Maritime Affairs in South Korea is conceiving to reduce in the number of the fatality. This study is to reestablish the criteria of implementing lighting through field experiments and to develop an effective alternative of crosswalk lighting.
Analysis of the Ground Impedance of Ground Grids Combined with the Carbon Ground Electrodes
Lee, Bok-Hee ; Um, Sang-Hyun ; Kim, You-Ha ; Lee, Kang-Soo ; Jeon, Byung-Wook ; Choi, Jong-Hyuk ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 27, issue 3, 2013, Pages 36~42
DOI : 10.5207/JIEIE.2013.27.3.036
This paper deals with the frequency-dependent ground impedance of ground grids combined with the carbon ground electrodes. Ground grids are generally valid for multipurpose grounding systems as well as lightning protection systems. The carbon ground electrodes may be supplementarily used to reduce the high frequency ground impedance and to improve the transient response to surge currents. The frequency-dependent ground impedances of ground grids combined with or without the carbon ground electrodes were measured and their simulations with due regard to frequency-dependent soil resistivity were implemented by using EMTP program and Matlab modeling. As a consequence, the ground impedance of ground grids combined with the carbon ground electrodes is significantly reduced when the test current is injected at the terminal of the carbon ground electrode. The measured and simulated data for the test ground grids fairly agree with each other. It was found that the proposed method of simulating the frequency-dependent ground impedance is distinguished. The simulation techniques of predicting accurately the ground impedances without actual measurements can be used in the design of grounding systems based on ground grids and the carbon ground electrodes.
The Development of Real-Time Harmonic Analysis Algorithm in Distribution Transformer
Park, Chul-Woo ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 27, issue 3, 2013, Pages 43~49
DOI : 10.5207/JIEIE.2013.27.3.043
Recently harmonics flowing into power system is increasing as the usage of semiconductor equipments and switching mode power equipments are increasing. Harmonics cause problems such as heat increasing and reduction in capacity of transformers, especially the harmonics flowing into a distribution transformer can lead to the lifetime reduction of transformer. In this paper, we are about to develop a device that can monitor harmonics in real-time as it is affixed to a distribution transformer. Unlike the existing expensive harmonic analysis device, a new harmonic analysis algorithm is proposed in order to implement low-cost equipment. The real-time harmonic analysis algorithm proposed in this paper allows implementation on low performance microcontrollers, thus it can monitor the harmonic in real-time as it is individually affixed to the transformer. Therefore, it would improve the reliability of the transformer and stable power system operation would be possible as it can prevent the transformer accidents in advance.
Study of Enhanced Photovoltaic Performance with Optimized Electrolytes and Blocking Layer Formation
Park, Hee-Dae ; Joo, Bong-Hyun ; Sung, Youl-Moon ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 27, issue 3, 2013, Pages 50~54
DOI : 10.5207/JIEIE.2013.27.3.050
In this work, the effects of blocking layer and optimally fabricated electrolyte were investigated with respect to impedance and conversion efficiency of the cells.A layer of
less than ~200nm in thickness, as a blocking layer, was deposited by rf sputtering onto the F:
(FTO) glass to be isolated from the electrolyte in dye-sensitized solar cells (DSCs). Also, optimum condition of electrolytes preparation for DSCs was investigated. 3-methoxyppropionitrie and redox pairs with LiI and
were used as solvents for fabrication of electrolyte. The electrochemical impedances of DSCs using this photo-anode were
: 11.9 and
, respectively. The
impedance related by electron transportation from porous
to FTO showed lower than that of normal DSCs. The photo-conversion efficiency of prepared DSCs was 6.4% and approximately 1.3% higher than general one.
Inrush Current Suppression Method of the Reactive Power Compensator by using a Linear Region of the Switch
Park, Seong-Mi ; Kang, Seong-Hyun ; Park, Sung-Jun ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 27, issue 3, 2013, Pages 55~64
DOI : 10.5207/JIEIE.2013.27.3.055
In this paper, a new topology which can add a small reactor in series to a condenser-bank type reactive power compensator to limit current is proposed. And also the proposed topology can add or remove a power condenser safely without any addition of inrush-current suppression resistance. The proposed method tests variable resistance of the drain source of a switching device which is controlled by gate voltage in a two-way switch with a diode rectifier and FET switch. In other words, the proposed method is a inrush-current suppression method with the structure of variable resistance. In particular, the proposed method creates smooth current without any resonance in inrush-current as well as is not limited by the time of switch on and off.
A Study on the Integrated Simulation and Condition Monitoring Scheme for a PMSG-Based Variable Speed Grid-Connected Wind Turbine System under Fault Conditions
Kim, Kyeong-Hwa ; Song, Hwa-Chang ; Choi, Byoung-Wook ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 27, issue 3, 2013, Pages 65~78
DOI : 10.5207/JIEIE.2013.27.3.065
To analyze influences under open fault conditions in switching devices, an integrated simulation and condition monitoring scheme for a permanent magnet synchronous generator (PMSG) based variable speed grid-connected wind turbine system are presented. Among various faults in power electronics components, the open fault in switching devices may arise when the switches are destructed by an accidental over current, or a fuse for short protection is blown out. Under such a faulty condition, the grid-side inverter as well as the generator-side converter does not operate normally, producing an increase of current harmonics, and a reduction in output and efficiency. As an effective way for a condition monitoring of generation system by online basis without requiring any diagnostic apparatus, the estimation schemes for generated voltage, flux linkage, and stator resistance are proposed and the validity of the proposed scheme is proved through comparative simulations.
Deterioration Characteristics of ZnO Surge Arrester Blocks for Power Distribution Systems Due to Impulse Currents
Lee, Bok-Hee ; Cho, Sung-Chul ; Yang, Soon-Man ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 27, issue 3, 2013, Pages 79~86
DOI : 10.5207/JIEIE.2013.27.3.079
In order to analyze the electrical performance of ZnO surge arresters stressed by the combined DC and AC voltages that are generated in DC/AC converter systems, the leakage current properties of ZnO surge arrester blocks deteriorated by impulse currents were investigated. The test specimens were deteriorated by the 8/
impulse current of 2.5kA and the leakage currents flowing into the deteriorated zinc oxide(ZnO) arrester blocks subjected to the combined DC and power frequency AC voltages are measured. As a result, the leakage currents flowing through deteriorated ZnO surge arrester blocks were higher than those flowing through the fine ZnO surge arrester blocks and the larger the injection number of 8/
impulse current of 2.5kA is, the greater the leakage current is. The leakage current-voltage curves(I-V curves) of the fine and deteriorated ZnO surge arrester blocks stressed by the combined DC and AC voltages show significant difference in the low conduction region. Also the cross-over phenomenon is observed at the voltage close to the knee of conduction on plots of I-V curves.
CIM based Distribution Automation Simulator
Park, Ji-Seung ; Lim, Seong-Il ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 27, issue 3, 2013, Pages 87~94
DOI : 10.5207/JIEIE.2013.27.3.087
The main purpose of the distribution automation system (DAS) is to achieve efficient operation of primary distribution systems by monitoring and control of the feeder remote terminal unit(FRTU) deployed on the distribution feeders. DAS simulators are introduced to verify the functions of the application software installed in the central control unit(CCU) of the DAS. Because each DAS is developed on the basis of its own specific data model, the power system data cannot be easily transferred from the DAS to the simulator or vice versa. This paper presents a common information model(CIM)-based DAS simulator to achieve interoperability between the simulator and the DASs developed by different vendors. The CIM-based data model conversion between Smart DMS (SDMS) and Total DAS (TDAS) has been performed to establish feasibility of the proposed scheme.
Maximum Power Analysis Simulator Development & Lighting Installation Control Simulation
Chang, Hong-Soon ; Han, Young-Sub ; Soe, Sang-Hyun ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 27, issue 3, 2013, Pages 95~99
DOI : 10.5207/JIEIE.2013.27.3.095
The maximum power analysis simulator took advantage of the facilities and power consumption reduction simulator test scenario development and testing of improvement in the scenario. As a maximum demand power controller, Maximum power analysis simulator performs control and disperasion of maximum demand power by calculating base power, load forecast, and present power which are based on signal of watt-hour meter to keep the electricity under the target. In addition, various algorithms to select appropriate control methode on each of the light installations through the peak demand power is configured to management. The simulation shows the success of control power for the specified target controlled by five sequential lighting installations.
Protection Coordination Associated with Connection Location of Residual Current Devices and Surge Protective Devices
Lee, Bok-Hee ; Park, Hee-Yeoul ; Shin, Gun-Jin ; Bae, Gwan-Young ; Ryu, Chun-Hyoung ; Lee, Kang-Hee ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 27, issue 3, 2013, Pages 100~106
DOI : 10.5207/JIEIE.2013.27.3.100
In this paper, in order to analyze lightning impulse response characteristics in combined installations of SPDs and RCDs, surge protection coordination between SPDs and RCDs are experimentally investigated by using the combination wave generator. Six different types of single-phase residual current operated circuit-breakers with integral overcurrent protection for household and similar uses(RCBOs) being present on the domestic market are tested according to KS C IEC 61009-1 standard. As a result, when a class I SPD is located on the source side of an RCBO, all kinds of specimens are able to provide the proper coordination between the SPD and RCBOs without nuisance tripping, unintended operation or damage due to test impulse currents. However, in the case that the class II SPD is located on the load side of RCBOs, a lot of L-N mode injected currents is split into the RCBO, and a few RCBOs are damaged. Coordination between SPDs and RCDs is not valid and a role of SPDs is of no use. When combining SPDs with RCDs, it is necessary to select SPDs and RCDs in consideration of the protection voltage level of metal oxide varistor embedded in RCDs.
Characteristics of CIGS Thin Film Photovoltaic Cells with a Change of Rising-Temperature Time in Rapid Thermal Processing
Jeong, Yong-Min ; Park, Chan-Il ; Cho, Geum-Bae ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 27, issue 3, 2013, Pages 107~112
DOI : 10.5207/JIEIE.2013.27.3.107
(CIGS) thin films were annealed on molybdenium/sodalime glass substrates of
by rapid thermal processing (RTP) with 2-step rising-temperature times in
ambient. Morphological property, structural characteristics and chemical composition of the precursor of CIGS thin films were influenced directly with a change of
-step rising-temperature time in RTP whereas there is no significant difference with the different
-step rising-temperature time (final crystallization temperature). The shorter
-step rising-temperature time in RTP obtained the higher photovoltaic cell efficiency from 7.469% to 8.479% even though the ideal composition in CIGS thin films could not be accoplished in this study.