2017 15th International Conference on Quality in Research (QiR) : International Symposium on Electrical and Computer Engineering最新文献

{"title":"Secondary voltage control of single phase induction generator operated in small scale picohydro power plant at off-grid area","authors":"Widodo Pudji Muljanto, R. Dalimi","doi":"10.1109/QIR.2017.8168501","DOIUrl":"https://doi.org/10.1109/QIR.2017.8168501","url":null,"abstract":"The usage of monoblock single phase electric water pump for small-scale electric power generation at the off-grid area is beneficial in terms of cost, ease of construction, availability of spare parts and in terms of reliability. The problem found is the difficulty to maintain the output voltage and frequency of single-phase induction motor when operated as an electric induction generator especially during fluctuation of the load due to the un-linearity behaviour of the induction machine. The common way to control voltage and frequency is applying electronic load controller by adjusting dummy load power to compensate the fluctuation of the real load. This research proposes additional secondary voltage control on the system by adjusting the capacitance value of the capacitor connected to the auxiliary winding in order to compensate the fluctuation of the output voltage.","PeriodicalId":225743,"journal":{"name":"2017 15th International Conference on Quality in Research (QiR) : International Symposium on Electrical and Computer Engineering","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131926081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Design of wideband microstrip antenna with parasitic element for 4G/LTE application","authors":"Yulianto La Elo, F. Zulkifli, E. Rahardjo","doi":"10.1109/QIR.2017.8168463","DOIUrl":"https://doi.org/10.1109/QIR.2017.8168463","url":null,"abstract":"This paper discuses the design of wideband microstrip antenna which is for mobile communication especially for 4G/LTE application. The 4G/LTE applications use frequency bands 850 MHz, 900 MHz, 1800 MHz, and 2300 MHz. Therefore, an alternative to support all these bands in one antenna is to design a wideband antenna. To achieve the antenna specification that has the characteristics of wideband, one of the methods that can be used is to add parasitic elements in a rectangular microstrip patch antenna. The antenna design uses FR4 substrate with a dielectric constant of 4.6 and substrate thickness 1.6mm. Ground plane, feed line, patch and parasitic elements using copper material with a thickness of 0.035mm. By using this technique, frequency band is obtained at 793.66 MHz up to 2501.34 MHz and have a bandwidth of 1707.64MHz. Approaching omnidirectional radiation pattern is obtained at the frequency of 850–900 MHz and significant changes in the 1800–2300 MHz frequency. Gain increases with increasing operating frequency. The highest gain in the range of 1800–2000 MHz is 4.47 dB. With the characteristics of this antenna, the result of the antenna design can be used for 4G/LTE application.","PeriodicalId":225743,"journal":{"name":"2017 15th International Conference on Quality in Research (QiR) : International Symposium on Electrical and Computer Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130354759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Stationary obstacle detection using pyramidal lucas kanade optical flow","authors":"Sukra Bambang Wahyu Tri Hatmaja, Saptadi Nugroho, Iwan Setyawan","doi":"10.1109/QIR.2017.8168532","DOIUrl":"https://doi.org/10.1109/QIR.2017.8168532","url":null,"abstract":"The obstacle detection system could be performed using Pyramidal Lucas Kanade Optical Flow calculation. The calculation is using greyscale images obtained from a camera or video files as input. The results from optical flow calculation then processed into Time to Contact (TTC) value that is used to estimate the distance of the robot to the obstacle. This paper proposed an idea to combine Pyramidal Lucas Kanade Optical Flow, the Region of Interest and Time History properties which can be used to detect an obstacle. The system can display the direction indicator as a response to avoid an obstacle. The results indicate that the system can detect the textured stationary obstacle in environments with light intensity between 22 lx and 400 lx. The average of total execution time required by the system for each frame to be processed is 31 ms.","PeriodicalId":225743,"journal":{"name":"2017 15th International Conference on Quality in Research (QiR) : International Symposium on Electrical and Computer Engineering","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132421769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Design and simulation of an output voltage controller for solar power (pv) application using fuzzy logic controller","authors":"Wahidin Wahab","doi":"10.1109/QIR.2017.8168522","DOIUrl":"https://doi.org/10.1109/QIR.2017.8168522","url":null,"abstract":"The solar (PV) energy as one of the renewable natural energy has been widely used as an environment friendly resources, however the intensity of incoming sun-light as the source of the power, is not always the same all the time during the day, which makes the output voltage becomes unstable. The sun light intensity can be influenced by various factors such as the cloudy or sunny weather, which causes large changes in the generated voltage of the solar panels. To compensate for the variation of generated voltage when the light intensity is low, it should be boosted, and when the light intensity is high, it should be bucked and controlled to reach the required output voltage. And furthermore, the output voltage should be maintained to a desired DC voltage to be applicable for electrical households. A Fuzzy Logic controller is designed to control the duty cycle of a PWM signal generated to control the switching period to regulate the output voltage of the system. This paper discusses the design and control of a buck-boost converter for solar panels of the power range 50–100W, which can be used in household apparatus. The system has been analyzed, and validated by simulation study and the results show that the target voltage can be regulated very well.","PeriodicalId":225743,"journal":{"name":"2017 15th International Conference on Quality in Research (QiR) : International Symposium on Electrical and Computer Engineering","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116503608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electrical properties of dye-sensitized solar module with integrated parallel connections","authors":"N. Nursam, J. Hidayat, L. M. Pranoto, S. Wijayanti","doi":"10.1109/QIR.2017.8168468","DOIUrl":"https://doi.org/10.1109/QIR.2017.8168468","url":null,"abstract":"Despite the rapid development of dye-sensitized solar cell since its early breakthrough by Graetzel in 1991, further development on the design and fabrication technique still constitutes a major challenge for this type of solar cell to reach the mass production and marketing level. Generally, the upscaling of dye-sensitized solar cell for daily utilizations necessitates the interconnection of multiple cells to form modules. In this regard, the use of screen-printing method could provide a major benefit to fabricate such structure as it is feasible for industrial and large scale manufacturing process. This contribution describes the fabrication of a 100 × 100 mm2 dyesensitized solar module using semi-automatic screen-printing technique. The fabricated modules comprised of 7 individual cells made from titanium dioxide (TiO2) nanocrystalline films, each with an active area size of 10 × 70 mm2, giving an active area ratio of 70%. The cells were connected to the neighboring cells in a parallel configuration. To simulate the potential of the fabricated modules for indoor applications, the current-voltage characteristics of the module were measured under an ambient lighting with an intensity of 30 mW/cm2. The parallel interconnected dye-sensitized solar module produced an open circuit voltage (VOC) of 0.71 V with a short circuit current (ISC) of 21.73 mA and maximum power output (Pmax) of 4.19 mW. Overall, the fabricated module achieved a power conversion efficiency of 1.99%. A secondary measurement under simulated sun with an intensity of 50 mW/cm2 (0.5 Sun) was also carried out to compare the performance of the modules under different environment. Under the later condition, the VOC, ISC, Pmax, and efficiency obtained were 0.77 V, 27.64 mA, 5.47 mW, and 0.15%, respectively. Our results indicated that the dye-sensitized solar module with integrated parallel connection has a prominent advantage to be applied as an energy source for applications that requires high current input under low-light condition.","PeriodicalId":225743,"journal":{"name":"2017 15th International Conference on Quality in Research (QiR) : International Symposium on Electrical and Computer Engineering","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133615794","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Incorporation of high permittivity circular dielectric resonator for enhancing resonant frequency of microstrip antenna","authors":"Antrisha Daneraichi Setiawan, A. Munir","doi":"10.1109/QIR.2017.8168458","DOIUrl":"https://doi.org/10.1109/QIR.2017.8168458","url":null,"abstract":"This paper deals with the incorporation of a high permittivity circular dielectric resonator (CDR) into a microstrip antenna which is investigated through simulation and measurement. Due to the circular shape of CDR, the microstrip antenna applied for investigation takes a circular patch with planar microstrip lines as a feeding line. The used CDR has the relative permittivity of 50 with the radius of 6.75mm and the height of 6.7mm. While, the microstrip antenna is deployed on a flame retardant (FR) glass-reinforced epoxy dielectric substrate with the relative permittivity of 4.2 and the thickness of 1.6mm. The CDR is incorporated into the microstrip antenna by placing it concentrically on the circular patch of microstrip antenna. From the experimental measurement, it shows that the resonant frequency of microstrip antenna with high permittivity CDR is lower about 1GHz than of the microstrip antenna without CDR from the frequency of 5.94GHz to the frequency of 5.04GHz. Although there is some slight different in other antenna parameters, however, both microstrip antennas show similar tendency each other in their performances.","PeriodicalId":225743,"journal":{"name":"2017 15th International Conference on Quality in Research (QiR) : International Symposium on Electrical and Computer Engineering","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125473179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Broadband planar bow-tie antenna on high resistivity silicon substrate for terahertz application","authors":"Teguh Wahyudi, C. Apriono, F. Zulkifli, E. Rahardjo","doi":"10.1109/QIR.2017.8168514","DOIUrl":"https://doi.org/10.1109/QIR.2017.8168514","url":null,"abstract":"Terahertz (THz) wave frequency region is part of the electromagnetic spectrum. This spectrum is located between 0.3 THz to 10 THz or between radio waves and optics. The THz frequency region has potentials in many different applications, such as imaging, spectroscopy, and wireless communication. However, some problems are still remaining and should be solved to develop THz technology system for an actual use, such as expensive fabrication facilities, lack of recent device performances, and low speed measurement process. This research proposes a bow-tie antenna in the THz region to provide wideband bandwidth for THz broadband applications. This antenna uses high resistivity Silicon material a substrate and Gold metal layer in a specified pattern as a radiating element. The initial bow-tie antenna design is elaborated by combining a capacitive bar technique placed near the antenna feed gap to improve return loss and wide bandwidth. This research is conducted by using the calculation method to analyze the initial antenna model and simulation by using commercial simulator software of CST Microwave studio to perform design optimization. The initial antenna before combined with the capacitive bar has a resonant frequency of 1 THz with return loss (RL) at −11.758 dB, and bandwidth 114.6 GHz from VSWR equal 2. The results from the THz bow-tie antenna combined with the capacitive bar show resonant frequency at 1 THz with RL at −40 dB, and bandwidth 457.47 GHz from VSWR equal 2. The capacitive bar technique has been successfully improved more bandwidth and better resonant frequency at 1 THz.","PeriodicalId":225743,"journal":{"name":"2017 15th International Conference on Quality in Research (QiR) : International Symposium on Electrical and Computer Engineering","volume":"288 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124210096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Miniaturization of array microstrip antenna using peripheral slits for wireless fidelity communication","authors":"S. Alam, I. Wibisana, I. Surjati","doi":"10.1109/QIR.2017.8168459","DOIUrl":"https://doi.org/10.1109/QIR.2017.8168459","url":null,"abstract":"This paper proposed a new design of array microstrip antenna using slit technique to reduce dimension of the antenna for Wireless Fidelity Communication and to increase gain. Dimension of the enclosure of the proposed antenna is 269 mm × 87 mm. The proposed antenna using single layer FR4 substrate with relative permittivity (εr) of 4.3, substrate thickness (h) of 1.6 mm and loss tangent (tan δ) of 0.0265. The simulation results shown that the antenna is capable working at frequency 2448 MHz with VSWR of 1.104 and return loss of −26.14 dB. Bandwidth of the proposed microstrip antenna is 320 MHz (2253 MHz–2573 MHz). Furthermore, its dimension can be reduced up to 37.5% with its gain of the proposed antenna of 6.45 dB.","PeriodicalId":225743,"journal":{"name":"2017 15th International Conference on Quality in Research (QiR) : International Symposium on Electrical and Computer Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130500449","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of coupling coefficient variation effects on double couplers structured single ring resonator with single and double beams injection","authors":"M. Hamidah, S. Rahardjo, R. W. Purnamaningsih, N. R. Poespawati, P. Priambodo","doi":"10.1109/QIR.2017.8168511","DOIUrl":"https://doi.org/10.1109/QIR.2017.8168511","url":null,"abstract":"Ring Resonator has become one of the most interesting research topics nowadays since this device has high finesse value at resonance frequency and high sensitivity as well. There have been many scientific publications in the device's characteristic dynamic conditions, structures (single, multi and combination), and their applications as well, such as sensors, filters and others. The performance characteristics of double coupler structured single ring resonator has been discussed so far but the effect of coupling coefficient variation has not been discussed yet. Meanwhile, in previous research we have investigated the effect of coupling coefficient variation on single coupler structured single ring resonator. Now, we explore further the effect of coupling coefficient variation on the power transfer function output of a double couplers structured single ring resonator. Besides, single beam and double beams inputs are utilized to get the transmission powers as the output characteristics from both of drop and through ports of the ring resonator. The simulation results show, for the drop port output, as the higher coupling coefficient is, the peak of the power transfer function output gets higher for both the drop port output of single beam input and double counter directional inputs, but the double counter directional inputs, shows the peak of the power transfer function output much higher compared to its of the single beam input. Meanwhile for through port output, the result with double parallel inputs configuration shows a bit different behavior with its of single beam configuration, where as the result of the double parallel input configuration exhibits peak of the power transfer output almost similar to the simulation result utilizing single ring resonator with single coupler configuration that has already published previously. This simulation works may be useful in the design of resonator performance when transmission power is one of the important parameters to be considered.","PeriodicalId":225743,"journal":{"name":"2017 15th International Conference on Quality in Research (QiR) : International Symposium on Electrical and Computer Engineering","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126401880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preliminary study of plasma-treated water for germination stimulation of agricultural seeds","authors":"T. Abuzairi, N. R. Poespawati, R. W. Purnamaningsih, Dicky Apriady","doi":"10.1109/QIR.2017.8168467","DOIUrl":"https://doi.org/10.1109/QIR.2017.8168467","url":null,"abstract":"Plasma treatment could generate UV radiation, chemical reactions, and radicals that be able to modify the properties of a wide range of materials, including water. Water treated by plasma produces reactive nitrate-nitrogen and oxygen species that useful for the fertilization of agriculture soil and plant growth. Moreover, the water treated by plasma can be used for increasing postharvest quality of agriculture products. In this study, plasma treatment of water has been used to stimulate the germination of agricultural seed, i.e. water spinach (Ipomoea aquatica). The results demonstrate that the water spinach seeds treated by plasma-treated water not only had better germination rate and germination index, but also had a higher length index and weight. Compared with control sample, the germination rate and germination index of the plasma-treatment sample improved by 16.96% and 28.57%, respectively. Characteristics of length index also increase to 425.46. In addition, fresh weight of plasma-treatment sample was higher than the control sample by 33.3%. These results indicated that plasma-treated water might be potentially applicable for increasing water spinach plant growth.","PeriodicalId":225743,"journal":{"name":"2017 15th International Conference on Quality in Research (QiR) : International Symposium on Electrical and Computer Engineering","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131055461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}