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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 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
Selecting the target year
Analysis of Daylight Distributions and Solar Radiation to Verify the Applicability of Blind PV Systems Using Simulation
Hong, Seong-Kwan ; Choi, An-Seop ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 25, issue 2, 2011, Pages 1~9
DOI : 10.5207/JIEIE.2011.25.2.001
Daylight provides residents with good visual environment. And available daylight in inside provides positive influence on psychological and physiological aspects. Also, sunlight can be converted directly into electricity using PV(photovoltaic) power generation. This study was to analyze characteristics of daylight distributions, calculate an amount of solar radiation and a PV power generation on the building facade using Radiance and Ecotect simulation programs. Ultimately, the purpose of this study is to verify the applicability of Blind PV systems.
A Study on RGBY LED Light using a Vacuum Printing Encapsulation Systems Method
Jang, Min-Suk ; Kim, Yeoung-Woo ; Shin, Gi-Hae ; Park, Joung-Wook ; Hong, Jin-Pyo ; Song, Sang-Bin ; Kim, Jae-Pil ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 25, issue 2, 2011, Pages 10~18
DOI : 10.5207/JIEIE.2011.25.2.010
In order to develop highly-integrated RGBY(Red, Green, Blue, Yellow) LED light, a high thermal radiation ceramic package was manufactured, and the encapsulation process was applied with a vacuum printing encapsulation system(VPES). After the completion of vacuum printing, the shape of the encapsulation layer could be controlled by heat treatment during the curing process, and the optical power became highly increased as the encapsulation layer approached a dome shape. The optical characteristics involved in a Correlated Color Temperature(CCT), a Color Rendering Index (CRI), and the efficiency of RGBY LED light were able to be identified by the experimental designing method. Regarding the characteristics of the white light of RGBY LED light, which were measured on the basis of the aforementioned optical characteristics, CRI posted 88, CCT recorded 5,720[
], and efficiency exhibited 52[lm/W]. The chip temperature of RGBY LEDs was below 55[
] when the consumption power of LED chips was 0.1[W] for the red, 0.3[W] for the green, 0.08[W] for the blue, and 0.24[W] for the yellow. Also, the thermal resistance of the highly-integrated RGBY LED light measured by T3Ster was 2.3[K/W].
A Study on the Green Growth Effect with the Rotational and Up-and-Down type Streetlight
Choi, Hyoung-Bum ; Kim, Kyung-Chul ; Oh, Sung-Hwan ; Hwang, Young-Rok ; Jung, Ji-Won ; Park, Dong-Hun ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 25, issue 2, 2011, Pages 19~23
DOI : 10.5207/JIEIE.2011.25.2.019
The current streetlight system have been tried various attempts. but during maintenance, it has caused the traffic congestion and many risk factors. In addition, maintenance costs are very expensive to manage and the local government have to establish countermeasures about the present condition. If neglected, it may cause a variety of social problems. so, there should be a measure to prevent problems. This rotational and up-and-down type streetlight can be a solution to these factors and it has been highlighted indirectly in terms of green growth because we have to take advantage of the value.
Analysis on the Measured Electric Power Consumption of Dimmable LED Lamps for a Specific Illuminance and Color Temperature
Jang, In-Hyun ; Hong, Seong-Kwan ; Choi, An-Seop ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 25, issue 2, 2011, Pages 24~31
DOI : 10.5207/JIEIE.2011.25.2.024
The purpose of this study is to find an efficient way using dimmable LED lamps to describe specific target illuminance and color temperature. This study used 14 dimmable LED lamps as same or different color temperature. The method of study is to measure of electric power consumption using different color temperature of dimmable LED lamps that were combination of two or three dimmable LED lamps by simultaneously dimming. Through this method, the electric power consumption was compared with all combinations of the illuminance and color temperature.
The Comparison of the Economical Efficiency of Light Sources for a Tunnel Lighting
Yi, Chin-Woo ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 25, issue 2, 2011, Pages 32~42
DOI : 10.5207/JIEIE.2011.25.2.032
In this paper to compare the economical efficiency of light sources for a tunnel lighting, we define a model tunnel and design tunnel lighting. And to examine economical efficiency of various tunnel lightings we compare the lighting expenses of tunnels. The results shows high pressure sodium lamps are more economical than fluorescent lamps.
A Study on the Subjective Evaluation of Color Appearance under the Different LED CCT Conditions
Kim, Hyun-Sun ; Kim, Yu-Sin ; Choi, An-Seop ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 25, issue 2, 2011, Pages 43~52
DOI : 10.5207/JIEIE.2011.25.2.043
LED lighting may cause different sensation and color appearance due to the different spectral power distributions compared to those of conventional lightings. Particularly, the CCT (Correlated Color Temperature) of LED lighting has a major effect on color appearance so that this study conducted an experiment through a subjective evaluation and luminance measurement for effective color appearance in a space. This study performed a subjective evaluation under the seven different LED CCT conditions, and color appearance was evaluated with major five colors in a customized lighting box. In addition, luminance measurement was conducted for each CCT and color condition to compare the results from a subjective evaluation. The results of this study may help to select a proper LED CCT for specific color conditions.
A Study on the Comparison of the Stand-alone operation Characteristics and Matlab/Simulink Dynamic Model of PEMFC and PEMFC/SCB
Hong, Pyo-Won ; Cho, Jae-Hoon ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 25, issue 2, 2011, Pages 53~60
DOI : 10.5207/JIEIE.2011.25.2.053
The available power generated from the FC power plant may not be sufficient to meet sustained load demand, peak demand or transient events. An supercapacitor bank(SCB) can supply a large burst of power, but it cannot store a significant amount of energy. The combined use of FC and SCB has the potential for the better energy efficiency, reducing the cost of FC technology and improved dynamic response. In this paper, A single PEMFC and PEMFC operated in parallel with a SC bank are presented, A new dynamic model of PEMFC system, the converter and controller has been developed for stand-alone applications. The simulation results are presented using Matlab/Simulink, and SimPowerSystems environments. It is confirmed that the results show a good performance and stable DC-link voltage for proposed dynamic and mathematical models developed for the combined FC/SCB.
A Trip Coil Fault Detection of Circuit Breaker
Youn, Ju-Houc ; Lee, Jong-Hun ; Park, Noh-Sik ; Lee, Dong-Hea ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 25, issue 2, 2011, Pages 61~68
DOI : 10.5207/JIEIE.2011.25.2.061
The circuit breaker of power distribution board is essential part for the protection of electrical disaster from load short, trouble of power system. For the normal operation of circuit breaker, trip coil of the circuit breaker can cut the mechanical contact of circuit breaker from the detection of power system troubles. This paper presents a design and experimental results of trip coil fault detection system for the real time monitoring of the circuit breaker. The designed system is consisted by the trip coil fault detector which is connected to the each circuit breaker and remote monitoring unit. The trip coil fault detector can detect the impedance and operating voltage of the trip coil, and the detected values are compared with the normal state. And the remote monitoring unit can be connected to the 32 channels of trip coil fault detectors by serial communication. From the designed system, the fault and normal states of the trip coil can be remotely monitored in real time. The designed system is verified by the practical circuit breaker of power distribution board. And the results shows the effectiveness of the designed system.
Fuzzy Speed Controller Design of Permanent Magnet Synchronous Generators for Variable-Speed Wind Turbine Systems
Yu, Dong-Young ; Choi, Young-Sik ; Choi, Han-Ho ; Jung, Jin-Woo ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 25, issue 2, 2011, Pages 69~79
DOI : 10.5207/JIEIE.2011.25.2.069
This paper proposes a new fuzzy speed control method based on Takagi-Sugeno fuzzy method of permanent magnet synchronous generators(PMSM) for variable-speed wind turbine systems. The proposed fuzzy speed controller consists of the control terms that compensate for the nonlinearity of PMSG and the control terms that stabilize the error dynamics. The conditions are derived for the existence of the proposed speed controller, and the gain matrices of the controller are given. The proposed control method can guarantee that the PMSG can effectively track the speed reference which is calculated through the MPPT control and can reduce the fluctuations of the generated power under even fast random wind conditions. To verify the performance of the proposed fuzzy speed controller, the simulation results are demonstrated.
Design of an Integrated High Voltage Pulse Generation circuit for Driving Piezoelectric Printer Heads
Lee, Kyoung-Rok ; Kim, Jong-Sun ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 25, issue 2, 2011, Pages 80~86
DOI : 10.5207/JIEIE.2011.25.2.080
This paper presents an integrated variable amplitude high voltage pulse generation circuit with low power and small size for driving industrial piezoelectric printer heads. To solve the problems of large size and power overhead of conventional pulse generators that usually assembled with multiple high-cost discrete ICs on a PCB board, we have designed a new integrated circuit (IC) chip. Since all the functions are integrated on to a single-chip it can achieve low cost and control the high-voltage output pulse with variable amplitudes as well. It can also digitally control the rising and falling times of an output high voltage pulse by using programmable RC time control of the output buffer. The proposed circuit has been designed and simulatedd in a 180[nm] Bipolar-CMOS-DMOS (BCD) technology using HSPICE and Cadence Virtuoso Tools. The proposed single-chip pulse generation circuit is suitable for use in industrial printer heads requiring a variable high voltage driving capability.
A Study on Evaluation for Risk Level in Transmission Network Connected with Renewable Energy
Kim, Sung-Yul ; Moon, Sang-Kun ; Kim, Jin-O ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 25, issue 2, 2011, Pages 87~95
DOI : 10.5207/JIEIE.2011.25.2.087
A Renewable Portfolio Standard(RPS) is a regulation that requires the increased generation of energy from renewable energy sources such as solar, wind, fuel cell, small hydro, biomass and geothermal. By environmental, technical and these regulatory reasons, the amount of renewable energy sources will be increased in a network. However, it is hard to assess risk of a transmission network with large scale renewable energy sources because the output characteristics of renewable energies are intermittent. This paper evaluates effects of a transmission system with supplemental large scale renewable energies into the existing system. To evaluate these effects, a methodology for risk level of components in a network is proposed considering steady state and contingency N-1 in this paper. We consider line current and bus voltage in each state of a network.
A Study on the Implementation of A Fire Detection Monitoring System to Improve Data-Rate in WSN Environment
Lee, Jae-Soo ; Yun, Chan-Young ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 25, issue 2, 2011, Pages 96~102
DOI : 10.5207/JIEIE.2011.25.2.096
There are many problems with the fire detection devices being used in currently, because it is difficult to find location of the source of fire and determine where devices are working or not. In this paper, we proposed fire detection and rescue system using wireless sensor network that can be real-time monitoring and determine safe exit. Fire detection and rescue system based on ubiquitous sensor network can know exactly source of fire and help determine rescue tactics using sensing data from wireless sensor nodes. Transmitted wirelessly in real-time thermal sensor and gas sensor information to analyze the GUI to monitor the status information output to the screen by use of a system implemented in everyday life, looked at the possibility.
Design of a Fuzzy Speed Controller and a Fuzzy Angular Acceleration Observer for a Permanent Magnet Synchronous Motor
Jung, Jin-Woo ; Choi, Young-Sik ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 25, issue 2, 2011, Pages 103~112
DOI : 10.5207/JIEIE.2011.25.2.103
This paper proposes a new fuzzy speed controller for the precise speed control of a permanent magnet synchronous motor(PMSM). The proposed control system needs the information of the angular acceleration instead of the load torque, so the third-order fuzzy acceleration observer estimates it. Moreover, the LMI conditions are derived for the existence of the fuzzy acceleration observer and fuzzy speed controller, and the gain matrices of the observer and controller are obtained. It is analytically proven that the proposed observer-based fuzzy speed regulator is exponentially stable. To evaluate the performance of the proposed control algorithm, experimental results as well as simulation results are provided under the conditions of motor parameter and load torque variations. Finally, it is clearly confirmed that the proposed control method can accurately control the speed of a PMSM.
A study on the Measurement of Power system Frequency using Digital Signal Processor
Lee, Jung-Woo ; Oh, Yong-Taek ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 25, issue 2, 2011, Pages 113~119
DOI : 10.5207/JIEIE.2011.25.2.113
A frequency in electrical power system changes by the load fluctuation in utility grid, has an influence on a connected generator, and ultimately brings a big trouble in the power system. Therefore, a quick measurement of system frequency and governor control of power system is a very important factor in the reliability and the economic feasibility. Electromagnetic frequency relays in the past had the large power consumption and the difficulty of accurate measurement. After Researched and developed digital relays are very affected by the noise and the distortion, and the recently developed Microprocessor relays have problems of expensive device and time when measuring the frequency at 50[ms]. In this study, An improve algorithm that measures the power system frequency quickly and accurately is suggested, simulated by using Matlab and programmed using C code through DSP6713 KIT. This algorithm is tested to the arbitrary voltage waveform input. The results show that the suggested algorithm is effective in the accurate and quick frequency measurements.
Protection of MOV Thermal Runaway and Safety Improvement of SPD using Built-in Instantaneous Trip Device
Kim, Ju-Chul ; Jeon, Joo-Sool ; Ki, Che-Ouk ; Choi, Gyung-Ray ; Lee, Sang-Joong ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 25, issue 2, 2011, Pages 120~125
DOI : 10.5207/JIEIE.2011.25.2.120
SPDs are increasingly being used against lightning and switching surge according to the applicable revised standard and equipotential grounding system. SPDs are equipped usually with a MOV voltage regulating element. The MOV, however, always is exposed to the danger of thermal runaway resulting from inrushing temporary overvoltage and deterioration. In this paper, the authors made two prototype SPDs built-in Instantaneous trip device and analyzed their limiting voltage through test of the MOV breakdown. As the result of the analysis, the SPDs built-in Instantaneous trip device was proven to be effective for protecting MOV against thermal runaway and Instantaneous trip device react for limiting voltage is considered that is applicable to SPD.
Synthesis of TCO-less Solar Cell using Metal Mesh Type Electrode and its Photovoltaic Characteristics
Park, Min-Woo ; Sung, Youl-Moon ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 25, issue 2, 2011, Pages 126~130
DOI : 10.5207/JIEIE.2011.25.2.126
Transparent conductive oxide (TCO) is an important part in the construction of dye-sensitized solar cells (DSCs) because of its low sheet resistance, sufficient light transparent ability and high photoelectrical response as a porous photo-electrode material of DSCs. However, the use of TCO for the two DSC electrodes can result in significant cost increase for the less effective DSCs compared to Si based solar cell. Therefore, the replacement of TCO is required for the commercial production of DSCs. In this study, TCO electrodes are replaced by stainless steel mesh. The 3.44[%] efficiency of the prepared TCO-less DSCs sample was obtained.
Electrical Breakdown Characteristics of N
Gas under Impulse Voltages
Shin, Hee-Kyoung ; Kim, Dong-Kyu ; Lee, Bok-Hee ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 25, issue 2, 2011, Pages 131~136
DOI : 10.5207/JIEIE.2011.25.2.131
This paper aims to examine the possibility of using an environmentally friendly
as an alternative gas to
. For this purpose, we have investigated breakdown characteristics of
under impulse voltages in a quasi-uniform electric field gap. The 1.2/50[
] lightning impulse voltage, switching impulse voltages and oscillatory impulse voltages were applied at the test gap. The electric field utilization factor ranges from 0.5 to 0.8. The experimental data of
acquired in the same experimental condition are presented in parallel for comparison. As a result, the breakdown voltages in
are linearly increased with the gas pressure, also the breakdown voltages in
are increased with increasing the gap distance and electric field utilization factor. The positive breakdown voltages are higher than the negative breakdown voltages. The nagative basic lightning impulse withstand level of 150[kV] in
of about 0.5[MPa] is nearly equal to that in
of 0.15[MPa]. It is seen from the results obtained in this work that
can be used as an eco-friendly alternative gas to
in distribution power equipment.
Fault Current Limiting and Hysteresys Characteristics of a SFCL using Magnetic Coupling of Two Coils on the Iron Core with an Air-Gap
Lim, Sung-Hun ; Kim, Jae-Chul ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 25, issue 2, 2011, Pages 137~142
DOI : 10.5207/JIEIE.2011.25.2.137
In this paper, the fault current limiting and the hysteresys characteristics of a superconducting fault current limiter (SFCL) using magnetic coupling of two coils on the iron core with an air-gap were analyzed. The introduction of the air-gap in the SFCL with magnetically coupled two coils can suppress the saturation of the iron-core and, on the other hand, make the limiting impedance of the SFCL decreased, which results from the increase of the exciting current. To analyze the effect of the aig-gap on the fault current limiting characteristics of the SFCL, the hysteresys curves of the iron core comprising the SFCL were derived from the short-circuit experiment and the variation in the voltage-current trace of the SFCL during the fault period was analyzed. Through the comparison with the current limiting characteristics of the SFCL without air-gap, the air-gap could be confirmed to contribute to the suppression of the iron core's saturation through the increase of the SFCL's burden from the short-circuit current.
IIR Structure Secondary Path Estimation Algorithms for Active Noise Control Systems
Choi, Young-Hun ; Ahn, Dong-Jun ; Nam, Hyun-Do ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 25, issue 2, 2011, Pages 143~149
DOI : 10.5207/JIEIE.2011.25.2.143
In this paper, IIR structures are proposed to reduce the computation complexity of the secondary-pass estimation in active noise control(ANC) systems. However, there are stability problems of using IIR models to reduce the computation complexity in ANC systems. To overcome these problems, we propose a stabilizing procedure of recursive least mean squares (RLMS) algorithms for eatimating the parameters of IIR models of the secondary path transfer functions. The multichannel ANC systems are implemented by using the TMS320C6713 DSP board to test the performance of computation complexity and stability of the proposed methods. Comparing the IIR filters with the FIR filters, the IIR filters can reduce 50[%] of the computation and obtain similar noise reduction result.