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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 24, Issue 12 - Dec 2010
Volume 24, Issue 11 - Nov 2010
Volume 24, Issue 10 - Oct 2010
Volume 24, Issue 9 - Sep 2010
Volume 24, Issue 8 - Aug 2010
Volume 24, Issue 7 - Jul 2010
Volume 24, Issue 6 - Jun 2010
Volume 24, Issue 5 - May 2010
Volume 24, Issue 4 - Apr 2010
Volume 24, Issue 3 - Mar 2010
Volume 24, Issue 2 - Feb 2010
Volume 24, Issue 1 - Jan 2010
Selecting the target year
An Evaluations of Light Pollution on Roadway Lighting
Cho, Sook-Hyun ; Lee, Min-Wook ; Kim, Hoon ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 24, issue 6, 2010, Pages 1~7
DOI : 10.5207/JIEIE.2010.24.6.001
Outdoor lighting have been controlled by laws and regulations instituted in accordance with each country's situations because lights are also considered as one of pollutions at the view of environmental pollutions and energy saving. Thus, in this paper, we suggest the calculation method and regulations of light pollution suitable for domestic by comparing and analyzing various types of road lighting luminaires based on the calculation method of light pollution accepted internationally.
Novel LCD CCFL-backlight Electronic Ballast using the Phase-shift Full-bridge Inverter
Jeong, Gang-Youl ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 24, issue 6, 2010, Pages 8~17
DOI : 10.5207/JIEIE.2010.24.6.008
This paper proposes a novel LCD CCFL-backlight electronic ballast using the phase-shift full-bridge inverter. The proposed electronic ballast reduces the ignition voltage and eliminates current spikes using the new digital dimming control applied with soft-starting. Thus the electronic ballast improves ignition behavior of the CCFL and hence increases the CCFL's life span. For this, this paper analyzes the full-bridge inverter topology of the proposed electronic ballast and explains the new digital dimming control algorithm applied to the ballast, briefly. And this paper shows a design example of the prototype circuit and explains an implementation method of the digital dimming control which is implemented on a single-chip microcontroller with software. This was implemented as actual prototype electronic ballast, and its experimental results showed that the proposed electronic ballast operates correctly. The ignition voltage of the prototype in the digital dimming operation was reduced about 30[%] compared with the conventional electronic ballast and there were not any current spikes.
Light Pollution of Outdoor Lighting in Coastal Area - Focused on Busan City -
Kong, Hyo-Joo ; Kim, Jeong-Tai ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 24, issue 6, 2010, Pages 18~26
DOI : 10.5207/JIEIE.2010.24.6.018
Outdoor lighting has become a necessary essential part of society for safety and comfortable space. However, inappropriate outdoor lighting leads to energy waste and poor landscape. Outdoor lighting is a very important social element, which enables us to conduct various activities at night in a safe, efficient and comfort way. River Thames in UK, Venice in Italy and Sydney in Australia is a good example of the coastal area. This paper aims to evaluate the light pollution of outdoor lighting in coastal area in Busan city. The Radiant Imaging ProMetric-1400 was used to measure the luminance of Gwangalli Beach, Marine City and Haeundae Beach. Compare to the CIE recommendation level the luminance of the all outdoor lighting were about 2~20 times higher. Outdoor lighting of the building facade luminance level and color should be particularly limited.
A Study on the Emergency and Recovery AC/DC Combination Lamps in the Electric Substations
Park, Joon-Yeol ; An, Youn-Ki ; Kim, Jong-Soo ; Shin, Hye-Young ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 24, issue 6, 2010, Pages 27~34
DOI : 10.5207/JIEIE.2010.24.6.027
This study is for the improvement in the equipment environment of the emergency and recovery lamps in electric substations. To solve problem about the weak illuminance of existing emergency lamps, the AC/DC combination lamps and switches are reviewed. And the improved illuminance standards that are divided each room's purpose are suggested. It is based on a nuclear power plant's Illuminance Standards and a safety lamp's Illuminance Standards of Illuminance Standards Korean Industrial Standards - KS A 3011 -, not just 5~10[%] in according with normal lamp's illuminance. Lastly, The experiments are conducted to prove the suggested contents on this study. Consequently, a battery capacity is not increased, but illuminance of emergency and recovery lamps can be increased.
Analysis of Electrostatic Field and Potential Distributions in Conductor-Backed Coupled Coplanar Waveguide Using Conformal Mapping Method
Yoo, Tae-Hoon ; Han, Ki-Soo ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 24, issue 6, 2010, Pages 35~42
DOI : 10.5207/JIEIE.2010.24.6.035
We use conformal mapping method to derive the analytical expressions for calculating electrostatic fields and electric potentials surrounding the conductor-backed coupled coplanar waveguide(CBCCPW) structure. Using the derived expressions, the electrostatic fields and potentials are computed at various points of the CBCCPW's geometry and the field and potential distributions are analyzed. The proposed method provides a faster and simpler calculation of the field distributions than the full-wave analysis method because no iterations are required. This method can be widely applied to the analysis of microwave integrated circuits using coupled line, such as coupler, filter, and microstrip antenna.
Reduction of DC-Link Voltage Ripple of Three-phase AC/DC Converter for Uninterruptible Power Supply by Applying Fuel Cell
Park, Jin-Ho ; Kim, Kyung-Min ; Lee, Jung-Hyo ; Won, Chung-Yuen ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 24, issue 6, 2010, Pages 43~51
DOI : 10.5207/JIEIE.2010.24.6.043
Conventional UPS(Uninterruptible Power Supply) using batteries for assisting the source is limited by the large volume and the life-time of battery. Moreover, voltage variation caused by the sudden load variation brings the problems on UPS system output. In this paper, the battery using fuel cell which is environment-friendly alternative energy is connected on AC/DC converter for UPS to compensate the sudden load variation energy and make the stable power.
An Optimal Location of Superconducting Fault Current Limiter in Distribution Network with Distributed Generation Using an Index of Distribution Reliability Sensitivity
Kim, Sung-Yul ; Kim, Wook-Won ; Bae, In-Su ; Kim, Jin-O ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 24, issue 6, 2010, Pages 52~59
DOI : 10.5207/JIEIE.2010.24.6.052
As electric power demand of customers is constantly increasing, more bulk power systems are needed to install in a network. By development of renewable energies and high-efficient facilities and deregulated electricity market, moreover, the amount of distributed resource is considerably increasing in distribution network consequently. Also, distribution network has become more and more complex as mesh network to improve the distribution system reliability and increase the flexibility and agility of network operation. These changes make fault current increase. Therefore, the fault current will exceed a circuit breaker capacity. In order to solve this problem, replacing breaker, changing operation mode of system and rectifying transformer parameters can be taken into account. The SFCL(Superconducting Fault Current Limiter) is one of the most promising power apparatus. This paper proposes a methodology for on optimal location of SFCL. This place is defined as considering the decrement of fault current by component type and the increment of reliability by customer type according to an location of SFCL in a distribution network connected with DG(Distributed Generation). With case studies on method of determining optimal location for SFCL applied to a radial network and a mesh network respectively, we proved that the proposed method is feasible.
Improved Mesh Grounding Electrode Model by Changing Arrangements of Internal Conductors of the Mesh Grounding Electrode
Shim, Yong-Sik ; Choi, Hong-Kyoo ; Kim, Tae-Hoon ; Song, Young-Joo ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 24, issue 6, 2010, Pages 60~66
DOI : 10.5207/JIEIE.2010.24.6.060
Mesh grounding electrodes in Korea and abroad are designed as lattice-shaped equidistance grounding grids. In case of a lattice-shaped grounding Grid, however, there is a problem of higher touch voltage at the corner of the grid relative to the center. To overcome this problem, we used oblique-shaped equidistance grounding grid to reduce the area of the corner where mesh voltage occurs. As a result the mesh voltage was reduced. Therefore, this paper suggests the use of oblique-shaped grounding grid instead of the existing lattice-shaped ones. It applied the same grounding design dimensions for both lattice-shaped and oblique-shaped grounding grids, compared and analyzed mesh voltage, GPR, ground resistance, total length of grounding conductor, verified that oblique-shaped grounding grid is superior to the lattice-shaped.
Evaluation of the Protection Performance of TT and TN Systems for Low-Voltage Consumers Against Lightning Surges
Lee, Kyu-Sun ; Choi, Jong-Hyuk ; Lee, Bok-Hee ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 24, issue 6, 2010, Pages 67~74
DOI : 10.5207/JIEIE.2010.24.6.067
Most of domestic low-voltage consumers are supplied from the TN-C system of KEPCO, but their load installations have established according to the national statutory standard for electrical installations based on the TT system. In this work, to propose the proper system earthing arrangements of ensuring the protection of information-technology equipment against lightning surges, the protection performance of TT and TN systems against lightning surges was investigated. As a result, when lightning surge was injected to the neutral line of distribution system, the potential difference between the equipment earth terminal and neutral point of low-voltage mains in a TT system was significantly raised. The TT system is not advised due to the risk of damage to the sensitive computer equipment. Main equipotential bonding is an important requirement for protection of low-voltage installations against lightning surges. The TN system provides the best means to reduce the incoming lightning surges through the neutral line of low-voltage service systems. In addition, It is highly recommended to install the additional earthing at the service position of low-voltage consumers.
Synchronous Robot Simulator both on Virtual and Real Space for Quadruped Pet Robots
Kim, Hong-Seok ; Yi, Soo-Yeong ; Choi, Byoung-Wook ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 24, issue 6, 2010, Pages 75~82
DOI : 10.5207/JIEIE.2010.24.6.075
In this paper, we developed a new MSRDS(Microsoft Robotics Developer Studio) simulator for a quadruped pet robot with synchronization of virtual and real robots. By using this simulator, it is possible to reduce time and cost for gait and motion design and it will help for commercialization of service pet robots. In the research point of view, the simulator can be used to examine the model differences between the virtual and the real robots. Since this simulator implements the coordinated control of the virtual and real robots, it can be used as an internet game using two remote pet robots.
Evaluations of Dangerous Voltages around Grounding Electrode using Small-sized Model
Baek, Young-Hwan ; Lee, Bok-Hee ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 24, issue 6, 2010, Pages 83~88
DOI : 10.5207/JIEIE.2010.24.6.083
In this paper, to propose a valid method solving a problem relevant to grounding from actual field data, the experimental results relevant to touch and step voltages and surface potential profiles measured around the real-sized and small-sized grounding electrode models were described. The ground surface potential profiles and dangerous voltages around the concrete pedestals employed in street facilities such as street lamps, traffic signal lamp and controllers as a case study were measured and discussed. The hemispherical cell with a diameter of 1,160[mm] was employed to simulate uniform soil. As a result, the results measured with the small-sized model were in reasonably agreement with the data obtained from the real-sized installation. It was found that the small-sized model test could be employed as a useful means evaluating the dangerous voltages around grounding electrodes installed at the inaccessible areas such as mountains, underground, underwater, and so on.
Analysis of the Isolated Boost Converter Using Self-Driven Switch
Hong, Soon-Chan ; Chae, Soo-Yong ; Chung, Dae-Taek ; Kim, Hee-Sun ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 24, issue 6, 2010, Pages 89~98
DOI : 10.5207/JIEIE.2010.24.6.089
Isolated boost converter is desirable in the dc/dc converter applications where isolation is required and extremely high step up is needed. Transformer used to step up low input voltage into high output voltage must satisfy the volt-sec balance condition. Conventional isolated boost converter is controlled with conducting intervals overlapping. In this case, there is a problem that control circuit is complicated. In this paper, it is proposed and analyzed the isolated boost converter which set up a reset winding for the volt-sec balance of transformer and can construct the control circuit simple by using a self-driven switch. Finally, the validity of the theoretical analyses for the proposed converter is verified by both simulations and experiments on the 10[W] class isolated boost converter.
Implementation of Improved Automatic Lighting System using PLC
Kang, Shin-Wook ; Joo, Jin-Hwan ; Kwon, Hak-Cheol ; Lee, Suk-Gyu ; Park, Ju-Hyun ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 24, issue 6, 2010, Pages 99~106
DOI : 10.5207/JIEIE.2010.24.6.099
This paper proposes a novel design of enhanced auto light control system using PLC(Power Line Communication) and SMS(Short Message Service) to copy with emergent cases effectively. In the proposed system, the indoor sensing system is designed to send emergent messages to the users or system manager in case of fire or invasion, which may prevent secondary accident. In addition, data transmission using PLC may drastically decreases the number of lines. The experimental results show the effectiveness of the proposed system.
A Study on the Grounding Resistance Effects of Lightning Arrester for Lightning Stroke Protection in Electric Distribution Systems
Kim, Kyung-Chul ; Jung, Ji-Won ; Lee, Kyu-Jin ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 24, issue 6, 2010, Pages 107~114
DOI : 10.5207/JIEIE.2010.24.6.107
Lightning is the discharging of high-voltage charged cells within clouds to earth other or to the earth. Lightning protection grounding is essential for the protection of buildings, distribution lines, and electrical equipment from lightning surges. Equipment grounding is for the purpose of controlling the voltage to earth within predictable limits. This paper investigates the effects of lightning arrester grounding resistance by analysing the neutral to earth voltages and arrester break down voltages when the lightning strike hits the distribution line. The case study was simulated numerically and graphically through the use of the EDSA software program.
A Centralized Monitoring System for Factory Electrical Installation Using Active Database
Choi, Sang-Yule ; Moon, Hyun-Ho ; Lee, Jong-Joo ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 24, issue 6, 2010, Pages 115~122
DOI : 10.5207/JIEIE.2010.24.6.115
The main purpose of centralized monitoring system is to manage factory electrical installation efficiently by on-line data acquisition and supervisory control. The existing centralized system is only able to be managed by operator whenever electrical installation's faults are detected. Therefore, it may be possible for propagating the installation's faults when operator make the unexpected mistakes. To overcome the unexpected mistakes, in this paper, the author presents a centralized monitoring system for factory electrical installation using active database. by using active database production rule, stated system can minimize unexpected mistake and can operate centralized monitoring system efficiently. Test results on the five factory electrical installations show that performance is efficient and robust.
Multiobjective Optimal Double-Layer PM Rotor Structure Design of IPMSM by Response Surface Method and Finite Element Method
Choi, Gil-Sun ; Hahn, Sung-Chin ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 24, issue 6, 2010, Pages 123~130
DOI : 10.5207/JIEIE.2010.24.6.123
In general, a design method based on the equivalent magnetic circuit has been used for basic design of Interior Permanent Magnet Synchronous Motor(IPMSM). However, the equivalent magnetic circuit method has difficulty in considering the arrangement of PM. IPMSM has high degree of freedom for PM rotor design. In this paper, we proposed the multiobjective optimal design method considering the arrangement of PM for the double-layer PM rotor structure that minimizes the torque ripple as well as maximizes the torque of IPMSM. The design variables of double-layer PM rotor structure are obtained from the Response Surface Method. Torque and torque ripple were calculated by Finite Element Method.
The Analysis of Energy Cost Adopting an Electric Residence using Historical Energy Consumption Data
Lee, Jun-Kyu ; Shin, Hee-Sang ; Cho, Sung-Min ; Lee, Hee-Tae ; Jang, Sung-Kyu ; Kim, Jae-Chul ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 24, issue 6, 2010, Pages 131~137
DOI : 10.5207/JIEIE.2010.24.6.131
Change of the energy used in a house can be separated from LNG, and electric power. The electric power consumption of a house is more increasing than LNG. The interest for electric houses is rising due to energy saving and low carbon emission. Accordingly, the amount of energies and cost are analyzed consumed in a house using cumulative energy consumption. The result of analysis, amount of electric power, is more increase. In comparison, the use volume of city gas is more decrease. In this paper, the use volume of energy resource is analyzed using historical energy consumption data in the past 25 years. In addition, expected electrical power and heating energy is analysed adopting an Electric Residence.
Modeling for the Analysis of Rail Potential in the DC Railway Power System
Cho, Woong-Ki ; Choi, Kyu-Hyoung ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 24, issue 6, 2010, Pages 138~146
DOI : 10.5207/JIEIE.2010.24.6.138
DC railway power supply system generally uses the running rails as negative-polarity return conductor for traction load current, and the induced rail potential and stay current cause serious problems to any electrified matter in the underground and also safety problems to human body. This paper presents a new algorithm for the analysis of the rail potential and the stray current in DC railway power system operated under independent/parallel power feeding mode. The effect of load current fluctuation during train operation is also calculated by using TPS(Train Performance Simulation) program to analysis the variation of the railway potential and stray current along railway track. Simulation program is developed based on the proposed algorithm and case studies are provided.
Research on the Effect of Interconnected Distributed Wind Power Generation(225[kV], AC Link Method) on Power Quality in System
Na, Chae-Dong ; Park, Jung-Shin ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 24, issue 6, 2010, Pages 147~153
DOI : 10.5207/JIEIE.2010.24.6.147
When small scale wind and solar power generation systems are connected to conventional power distribution system. It is worried that it can affect the quality of electricity such as voltage variation, power factor, frequency, harmonics and flicker. Therefore, in this research, in order to investigate the effects of wind power generation equipments(AC link method) on electrical power quality, when they are connected to distribution system. Power quality analyzer was installed respectively at the front side of power conversion system of conventional wind generation system and secondary side of consumer's power supply at distribution line. Measurements on power quality were performed and the effects of the wind generation system on distribution system were analyzed when it was and was not operated. The results show that 0.34[%] increase on voltage variation, 0.145 increase on current crest factor and 0.6[
] deviation on phase difference when the power generation system was operated.
Design of MSR for Magnetic Field Shielding of Low Frequency
Choi, Hak-Yun ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 24, issue 6, 2010, Pages 154~159
DOI : 10.5207/JIEIE.2010.24.6.154
In this paper, the magnetically shielded room for low magnetic field shielding is designed and measured by fabricated. The size of magnetically shielded room was 3.0[m](W)
3.0[m](H) to enter the industrial measuring instruments and analyzed DC and AC shielding characteristics of magnetic materials with a high permeability and AC shielding characteristics by eddy current of conductive materials. As a results, shielded room dimensions were obtained. To verify the analysis results, magnetically shielded room is fabricated and the calculated results are compared with the measured results. The Measured results show good agreement with calculated results. According to measurements, 5 times of 0.1[Hz] and 86 times of 60[Hz] is achieved at low frequency. The fabricated shielding room can be used as the magnetically shielding room for low magnetic field shielding.
A Study on the Supply and Stray Current Distribution of the DC Railway Power System
Cho, Woong-Ki ; Choi, Kyu-Hyoung ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 24, issue 6, 2010, Pages 160~168
DOI : 10.5207/JIEIE.2010.24.6.160
This paper presents the analysis of the current as stray current and supplied current of the substation, on the DC railway power system. In DC railway power supply system, the running rails are usually used as the return conductor(negative-polarity) for traction load current. This condition mainly focuses on economic considerations, since it does not require the installation of an additional return conductor. But, problems of low resistance between the running rails for the return conductor and earth allows a significant part of the return load current to leak into the earth. This current is normally called to as leakage or stary current. This stary currents creates serious problems for any electrified matter in the underground. Therefore, reduction of stray current of the DC railway power supply system is also of direct benefit to the operational and safety aspects of the DC railway systems. In this paper, deal with the analysis of the current distribution on the DC railway power system applied the common grounding system, using SPLIT of CDEGS program.
Development of IEC 61850 Client Testing System for Verifying the Communication Conformance of Substation Automation
Lee, Nam-Ho ; Jang, Byung-Tae ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 24, issue 6, 2010, Pages 169~176
DOI : 10.5207/JIEIE.2010.24.6.169
Substation Automation System is basically operating throughout communicative services among IEC 61850 based devices. So, minimum requirement in order to install the system in the substation is to verify server and client conformance of IEDs and HMIs according to the IEC 61850 standard. Even though UCA IUG issued IEC 61850 conformance test procedures for both the server and the client, Much of the test is limited to IEDs as server and there is no client-only testing tool except KEMA server test tool sets. this study aims to develop IEC 61850 client testing system for verifying the full communication conformance of the substation automation system and this paper describes the design and implementation of the testing system.
Design of Real-Time Power System Simulator for Education using LabVIEW
Lee, Kyu-Hwa ; Kim, Il-Ju ; Choi, Joon-Young ; Lee, Song-Keun ;
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, volume 24, issue 6, 2010, Pages 177~182
DOI : 10.5207/JIEIE.2010.24.6.177
As the technology is developing, the power system is also developing. Nowaday the power system operation has been complicated because of new technology development, new electric equipments and new operation method of the power system. As the electric equipments performance developing, the fault ratio of power system has been decreased. Therefore, new operation method is needed. More complicated the power system operation method, we need more the power system simulator to train and educate the novice power system operators. In this paper, we made real-time power system simulator using LabVIEW through the TCP/IP communication. With this simulator the instructor can simulate the trainee within various unpredicted cases that real power system could happen.