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Analysis of Feeder Needs to Support the Implementation of LRT in Palembang 支持巨港轻轨实施的支线需求分析
Pub Date : 2019-10-31 DOI: 10.31427/ijstt.2019.2.2.1
J. Arliansyah
Palembang City in August 2018 was the first city in Indonesia which operated a mass transit of Light Rail Transit (LRT). LRT in Palembang City has a length of 23 km and 13 stations that stretch from the Airport station to the DJKA station. In its first year of operation, it was noted that the number of passengers using LRT was still very small, some efforts were needed to increase the number of LRT passengers. This study aimed to increase the number of LRT passengers by analyzing the development of the feeder line, the potential for increasing the number of passengers, and the infrastructure needs to support LRT operations in Palembang. The results show that four stations have the potential to develop feeder lanes, namely Asrama Haji station, RSUD station, Garuda Dempo station, and Polresta station, with the increased total number of potential passengers of 1460 passengers/day. The supporting infrastructure needed to support movement using LRT consists of a park and ride facilities, pedestrian bridges, the construction and repair of pedestrian facilities, and drop-off and pick-up facilities.
2018年8月,巨港市成为印尼首个运营轻轨公共交通的城市。巨港市的轻轨全长23公里,有13个站点,从机场站延伸到DJKA站。在营运的第一年,我们注意到使用轻铁的乘客人数仍然很少,需要作出一些努力来增加轻铁的乘客人数。本研究旨在通过分析支线的发展,增加乘客数量的潜力以及支持巨港轻轨运营的基础设施需求来增加轻轨乘客数量。结果表明,Asrama Haji站、RSUD站、Garuda Dempo站和Polresta站4个站点具有发展支线车道的潜力,总潜在客流量增加1460人次/天。支持使用轻铁的交通所需的配套基础设施包括停车和转乘设施、人行天桥、行人设施的建造和维修,以及上下车设施。
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引用次数: 1
Module Stabilizing of Biocarbon Based Electrochemical Capacitor 生物碳基电化学电容器模块稳定性研究
Pub Date : 2019-04-30 DOI: 10.31427/ijstt.2019.2.1.5
N. Syarif, D. Rohendi, Wulandari Sudarsono, W. Wong
One of the disadvantages of the electrochemical capacitor (EC) or supercapacitor compared with batteries is its low specific energy. It limits of EC to meet the energy needs of the electrical-electronic devices, such as electric cars. To overcome those limitations, it needs a serial circuit to increase the voltage range, and parallel circuits to increase the storage capacity. Practically, the module that built from 2-6 pieces of 2.5V EC cells will not feasible to make the module with the voltage of 5-15 V. It was found that the voltage of the EC cell could decreases to about 2.0 V, so that the capacitance of the module significantly reduced. This paper reports the basic methods that can be applied to overcome these problems by using a stabilizing or balancing component. The balancing components used in this study were a resistor, a Zener diode, and a Schottky diode. Each component was attached to every EC cell. The influence of the Zener and Schottky diode was observed as a component of a blocking diode. The results showed that the use of a 100-ohm resistor and Zener diode reduces voltage peaks while the use of blocking diode modules leads to increased discharge time. In general, there was no significant change in the charging time, both with and without the balancing and blocking component.
与电池相比,电化学电容器(EC)或超级电容器的缺点之一是比能量低。它限制了EC以满足电气电子设备(如电动汽车)的能源需求。为了克服这些限制,它需要一个串行电路来增加电压范围,并需要一个并行电路来增加存储容量。实际上,由2-6块2.5V EC电池构建的模块将不可用于制造电压为5-15 V的模块。研究发现,EC电池的电压可以降低到2.0 V左右,从而使组件的电容显著降低。本文报告了使用稳定或平衡元件来克服这些问题的基本方法。本研究中使用的平衡元件是一个电阻器、一个齐纳二极管和一个肖特基二极管。每个组件连接到每个EC细胞。齐纳和肖特基二极管作为阻塞二极管的一个组成部分被观察到的影响。结果表明,使用100欧姆电阻和齐纳二极管降低了电压峰值,而使用阻塞二极管模块导致放电时间增加。总的来说,无论是否有平衡和阻塞成分,充电时间都没有显著变化。
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引用次数: 0
Network Analysis of Intercity Bus Terminal and Inner-City Toll Road Development – The Case of Bandung City 城际公交总站与市内收费公路发展的网络分析——以万隆市为例
Pub Date : 2019-04-30 DOI: 10.31427/ijstt.2019.2.1.2
Kardina Nawassa Setyo Ayuningtyas, R. B. Frazila, S. S. Wibowo, Muhammad Farda
This paper explores the impact of Gedebage Terminal development to traffic performance in Bandung City, as well as the development of the inner-city toll road that connects eastern and western part of Bandung City. In addition, the study also analyzes the potential of minibus / public transport route that connects three terminals, namely Gedebage, Cicaheum and Leuwipanjang Terminal, in Bandung City. The study is carried out by using the 4-step modeling principle, by utilizing EMME/4 software. According to the analysis, the development of inner-city toll road will impact the city’s road performance significantly. On the other hand, the development of Gedebage Terminal as a terminal that serves intercity travel replacing Cicaheum Terminal will influence road network performance around the terminal in terms of traffic flow, vehicle speed and volume capacity ratio. The analysis results also suggest that the addition of public transport fleet with high capacity, such as bus, that connects the bus terminals is necessary to support public transport performance in Bandung City.
本文探讨了Gedebage码头的发展对万隆市交通性能的影响,以及连接万隆市东西部分的内城收费公路的发展。此外,该研究还分析了连接万隆市Gedebage, Cicaheum和Leuwipanjang三个码头的小巴/公共交通路线的潜力。采用四步建模原理,利用EMME/4软件进行研究。分析表明,城市内收费公路的发展将对城市道路性能产生重大影响。另一方面,Gedebage码头发展为替代Cicaheum码头服务城际旅行的码头,将影响码头周边道路网络的交通流量、车速和容积容量比。分析结果还表明,为了支持万隆市的公共交通绩效,有必要增加连接公交总站的高容量公共交通车队,如公交车。
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引用次数: 6
Optimal Power Flow with Considering Voltage Stability using Chaotic Firefly Algorithm 考虑电压稳定性的混沌萤火虫算法的最优潮流
Pub Date : 2019-04-30 DOI: 10.31427/IJSTT.2018.2.1.1
Yun Tonce Kusuma Priyanto, Vicky Mudeng, Muhammad Robith
In transportation technology, the development of electric vehicle is growing rapidly. In the future, the availability of electrical power is crucial because every electric tool needs electrical power. Power plant must provide electrical power for all consumer include an electric vehicle. Sustainability of electrical power transmission and distribution must be considered as critical due to its high power consumption in the community. One of the problem to supply electrical power is how to keep the system’s voltage stability. Several variations on the load pattern and topological can lead to a substantial poor impact on the system. However, generation cost must be considered by utilities’ operator. This paper demonstrates a recently developed metaheuristic method called Chaotic Firefly Algorithm (CFA). Our simulation shows that this method may perform better than several well-known metaheuristic methods. Therefore, CFA may become a promising method to solve optimal power flow considering voltage stability cases.
在交通运输技术方面,电动汽车发展迅速。在未来,电力的可用性是至关重要的,因为每一个电动工具都需要电力。发电厂必须为包括电动汽车在内的所有消费者提供电力。电力传输和分配的可持续性必须被认为是至关重要的,因为它在社区的高耗电量。供电的问题之一是如何保持系统的电压稳定。负载模式和拓扑结构上的一些变化可能导致对系统的严重不良影响。然而,发电成本必须考虑到公用事业运营商。本文介绍了一种最近发展起来的元启发式算法——混沌萤火虫算法(CFA)。我们的模拟表明,该方法可能比几种知名的元启发式方法性能更好。因此,在考虑电压稳定的情况下,CFA可能成为求解最优潮流的一种有前途的方法。
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引用次数: 1
Calibration of Traffic Incident Simulation Models Using Field Data 利用现场数据校正交通事故模拟模型
Pub Date : 2019-04-30 DOI: 10.31427/ijstt.2019.2.1.3
Semuel Y. R. Rompis, Filmon G. Habtemichael
This study presents a methodology to calibrate a traffic incident simulation model, particularly in a freeway. The queue length was used as the objective of the simulation model calibration in this study. The simulation model was set up using Traffic Simulation Model PTV. VISSIM. Multiple incident durations were simulated, and the generated queue lengths were compared to the observed queue lengths. The observed queue lengths were estimated using the LWR model and shockwave speeds calculated using the field data. The results confirm that calibrated VISSIM incident model can signify the shockwave propagation speeds and queue length in the event of freeway incident. Such a model can be implemented as an instrument for setting up traffic management strategies to alleviate the incident’s impact.
本研究提出了一种校准交通事故模拟模型的方法,特别是在高速公路上。本研究以排队长度作为仿真模型标定的目标。利用交通仿真模型PTV建立仿真模型。VISSIM。模拟多个事件持续时间,并将生成的队列长度与观察到的队列长度进行比较。观察到的队列长度使用LWR模型估计,冲击波速度使用现场数据计算。结果表明,标定后的VISSIM事件模型能够反映高速公路事故中冲击波的传播速度和队列长度。该模式可作为制定交通管理策略的工具,以减轻事故的影响。
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引用次数: 0
Evaluation of Motorcycle Energy Consumption in Urban Traffic 城市交通中摩托车能耗评价
Pub Date : 2019-04-29 DOI: 10.31427/ijstt.2019.2.1.4
Stepan Pance, Daniel Piskac, Adam Bures, Antonín Voldřich, M. Kováč, B. Budiman
This paper aims to evaluate the energy consumption of motorcycle operating in urban traffic. Position, speed, and elevation in each time segment are collected by GPS - tracking data from the journey of motorcycle Honda Verza 150 in Bandung city. The distance, acceleration, and required tractive force for the motorcycle motion are then calculated. Furthermore, the energy consumption is investigated by modeling the motorcycle and calculating tractive force from the force equilibrium. For each time segment, engaged gear is then proposed for the best energy efficiency. The relationship among speed, required tractive force, and shifted gear according to time and distance are comprehensively discussed.
本文旨在对摩托车在城市交通中运行的能耗进行评价。本田Verza 150摩托车在万隆市的行驶过程中,通过GPS跟踪数据收集每个时间段的位置、速度和海拔。然后计算摩托车运动所需的距离、加速度和牵引力。在此基础上,通过对摩托车进行建模,并根据力平衡计算摩托车的牵引力,研究了摩托车的能量消耗。对于每个时间段,啮合齿轮然后提出了最佳的能源效率。全面讨论了速度、所需牵引力、变速档随时间和距离的关系。
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引用次数: 3
Train Localization using Unscented Kalman Filter – Based Sensor Fusion 基于无气味卡尔曼滤波的传感器融合列车定位
Pub Date : 2018-10-31 DOI: 10.31427/ijstt.2018.1.2.1
I. Faruqi, M. B. Waluya, Y. Y. Nazaruddin, T. Tamba
This paper presents an application of sensor fusion methods based on Unscented Kalman filter (UKF) technique for solving train localization problem in rail systems. The paper first reports the development of a laboratory-scale rail system simulator which is equipped with various onboard and wayside sensors that are used to detect and locate the train vehicle movements in the rail track. Due to the low precision measurement data obtained by each individual sensor, a sensor fusion method based on the UKF technique is implemented to fuse the measurement data from several sensors. Experimental results which demonstrate the effectiveness of the proposed UKF-based sensor fusion method for solving the train localization problem is also reported.
本文介绍了基于Unscented卡尔曼滤波(UKF)技术的传感器融合方法在轨道系统列车定位问题中的应用。本文首先报道了一个实验室规模的轨道系统模拟器的开发,该模拟器配备了各种车载和路旁传感器,用于检测和定位轨道上的列车车辆运动。针对单个传感器获得的测量数据精度较低的问题,提出了一种基于UKF技术的传感器融合方法,将多个传感器的测量数据进行融合。实验结果证明了基于ukf的传感器融合方法解决列车定位问题的有效性。
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引用次数: 4
Review of Switched Reluctance Motor Control for Acoustic Noise and Vibration Reduction 开关磁阻电机的降噪减振控制研究进展
Pub Date : 2018-10-31 DOI: 10.31427/ijstt.2018.1.2.4
J. Furqani, A. Purwadi
Switched Reluctance Motor (SRM) is one of the candidates for substituting permanent magnet motor in Hybrid Electric Vehicle (HEV) application. Compared to permanent magnet motor, SRM is relatively low cost, robust, high reliability, and possible for high-temperature operation because of the absence of permanent magnet. One significant problem in SRM is the high acoustic noise and vibration. The vibration in SRM is caused by the radial forces acting at the stator teeth. Because of the saliency pole configuration in SRM, vibration is prominent. Many studies tried to reduce acoustic noise and vibration in SRM. In this paper, several controls for acoustic noise and vibration reduction are shown. The acoustic noise and vibration reduction from the experiment are also compared in each method.
开关磁阻电机(SRM)是混合动力汽车(HEV)中替代永磁电机的候选电机之一。与永磁电机相比,SRM成本相对较低,坚固耐用,可靠性高,并且由于没有永磁,可以高温运行。SRM的一个重要问题是高噪声和高振动。SRM中的振动是由作用在定子齿上的径向力引起的。由于SRM的凸极结构,振动非常突出。许多研究试图降低SRM中的噪声和振动。本文介绍了几种控制噪声和减振的方法。并对两种方法的降噪效果和减振效果进行了比较。
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引用次数: 3
Effect of Curing Current on Stiffness and Damping Properties of Magnetorheological Elastomers 固化电流对磁流变弹性体刚度和阻尼性能的影响
Pub Date : 2018-10-31 DOI: 10.31427/IJSTT.2018.1.2.3
N. Hapipi, S. Mazlan, S. Aziz, U. Ubaidillah, Seung-bok Choi
In this study, the viscoelastic effects of the magnetic field strength imposed for curing process on the stiffness and damping properties of magnetorheological elastomers (MREs) are experimentally investigated. In order to observe the effect, three different samples of MRE are fabricated by imposing curing current of 0.1 A, 0.3 A and 0.5 A which is equivalent to the magnetic field of 70 mT, 309 mT, and 345 mT, respectively. All samples consist of 30% silicone rubber and 70% carbonyl iron particles (CIPs) by weight percentages. After observing the morphological images via SEM, the dynamic performances of these samples, such as storage modulus and loss factor are evaluated and compared as a function of the magnetic field intensity or oscillation frequency. It is shown that the sample cured at 0.5A exhibits the highest storage modulus in the frequency domain. In addition, MR effects of three samples are identified, and it is found that the sample cured at 0.5A shows the highest absolute and relative MR effect.
实验研究了固化过程中施加的磁场强度对磁流变弹性体(MREs)刚度和阻尼性能的粘弹性影响。为了观察效果,分别施加相当于70 mT、309 mT和345 mT磁场的0.1 A、0.3 A和0.5 A固化电流制备了三种不同的MRE样品。所有样品按重量百分比由30%硅橡胶和70%羰基铁颗粒(cip)组成。通过扫描电镜观察形貌图像后,评估和比较了这些样品的动态性能,如存储模量和损耗因子作为磁场强度或振荡频率的函数。结果表明,在0.5A下固化的样品在频域表现出最高的存储模量。此外,对三种样品的MR效应进行了鉴定,发现在0.5A下固化的样品具有最高的绝对MR效应和相对MR效应。
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引用次数: 3
A Review on Production of Hydrogen from Renewable Sources and Applications for Fuel Cell Vehicles 可再生能源制氢及其在燃料电池汽车上的应用综述
Pub Date : 2018-10-31 DOI: 10.31427/ijstt.2018.1.2.5
D. Rohendi, Dea Radestia Rahmah, D. Yulianti, I. Amelia, Nyimas Febrika Sya’baniah, N. Syarif, A. Rachmat
Hydrogen gas is an energy carrier that has many advantages, including energy density for high mass and environmentally friendly. Hydrogen can be produced from various sources by numerous methods. Hydrogen production from renewable sources is interesting, due to the sustainable and inexpensive supply of the raw materials. Among the sources of renewable raw materials for hydrogen production are water and biomass with various production methods. It consists of the electrolysis of water with acidic and basic conditions, as well as thermochemical and biochemical biomass conversion.
氢气是一种能量载体,具有能量密度大、质量好、环境友好等优点。氢可以通过许多方法从各种来源产生。可再生能源制氢很有趣,因为原材料供应可持续且价格低廉。氢气生产的可再生原料来源包括水和各种生产方法的生物质。它包括酸性和碱性条件下的电解水,以及热化学和生化生物质转化。
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引用次数: 4
期刊
International Journal of Sustainable Transportation Technology
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