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The purpose of this study is to model, simulate and verify the entire vehicle handling dynamics of UNS Electric vehicle (Semar-T) using Matlab-Simulink. The modeling of Semar-T electric vehicle begins from the derivation equation of motion and Dugoff tire model. The equations are derived using Second Newton's Law and then simulated in Matlab-Simulink environment. Five handling condition tests are...
Sebelas Maret University (UNS) as a member of a consortium team for developing national electric vehicle, is developing a lithium battery for energy storage in electric vehicle (EV). Currently, the technology is in the technology development phase for commercialized under the university spin off scheme. In the technology development phase, according to the Goldsmith commercialization model, price...
Sebelas Maret University (UNS) as a member of a consortium team for developing national electric vehicle (Mobil Listrik Nasional, hereinafter referred to as Molina), is developing a lithium battery technology. This technology is prepared as the main energy storage in electric vehicle (EV), which are being developed by the team, which is called SmarT EV. Currently, the technology is in the technology...
A Wireless Battery Monitoring System (WBMS) for electric vehicle has been developed for monitoring voltage, current and temperature of battery. This system consists of hardwares (sensors, a microcontroller, a bluetooth module, an Android smartphone) and software. It was designed on a low cost microcontroller ATMEGA 328 (Arduino UNO). Voltage, current and temperature data are transfered to microcontroller,...
Incubator as one of the mechanisms in the commercialization of technology plays an important role to commercialize the results of technology research in higher education. National electric car (Molina) as one of the results of university research commercialization requires a system to bring the results of research to the market. This paper aims to produce a model of the flowchart of the business process...
The study is aimed to develop, model and simulate a magnetorheological brake (MRB) system. The drum-type MRB comprises of a rotating disk immersed in magnetorheological fluids (MRFs) and surrounded by an electromagnet coil. The magnetized coil causes a solidification of the MR fluid so that the shear stress between the moving part and static part increases resulting in the decrement speed of the moving...
Accurate estimation is still challenging for the development stage of a product due to lack information about the production process, bill of material, and detailed activity. Parametric cost estimation based on activity-based costing can be used to generate the cost information of the whole process from the design stage until development stage. This paper presents a parametric cost estimation model...
The real time Battery Monitoring System (BMS) has been designed using LabVIEW Interface for Arduino (LIFA). The voltage devide was used for sensing of battery voltage and the ACS712 based on effect hall sensor was used for current sensing. The computer with Ni LaBVIEW calculated and observed voltage and current of Battery. The result showed that BMS can monitor of voltage and current with real time...
Nowadays, technologies for highly efficient electric vehicles (EVs) suited for society mobility are needed. Battery technology is one of those important technologies for EVs. This paper aims to map out trade-off between battery technologies that were ever invented. Battery performance requirements depend on the vehicle application so that the suitable battery gives both of high energy density and...
Battery of 10 kWh is a result of a mini manufacturing plant project of Research & Development (R&D) for Indonesia Electric Vehicle (MOLINA) Consortium Team, Sebelas Maret University (UNS) will be installed in the SmarT Electric Vehicle (EV). In an attempt to analyze the feasibility of this investment and in order to attract investors to expand this project, MOLINA UNS conducted a feasibility...
Sebelas Maret University (UNS) as a member of a consortium for developing national electric vehicle (Mobil Listrik Nasional, in sort Molina). It is currently making a prototype electric vehicle. A battery is a major component in an electric vehicle and a supplier of energy to the Electric Vehicle (EV). Sebelas Maret University created a technology that was developed in the prototype Li-ion batteries...
Development of prototype is important phase of technologies for electric vehicles (EVs). The cost estimate of the development phase of prototype is required to minimize production cost in the future. This paper proposed an application to estimate production cost of EVs prototype. By using this application, users do not need to formulate the model to calculate a cost estimation despite the product...
This paper depicts the development of backward automatic parallel parking system for nonholonomic mobile robot. The configuration of the system consists of ultrasonic sensor, rotary encoder, controller, and actuators. The path planning algorithm is developed based on the data acquired from the sensor. The proposed idea of the path planning is based on the geometrical equations in which the needed...
This paper presents the application of support vector machines (SVM) for determining voltage unstable areas in an actual power system. The voltage unstable area is first determined based on the power transfer stability index (PTSI) calculated using information obtained from dynamic simulation output. Simulations were carried out on a practical 87 bus test system by considering load increase as the...
In security assessment of power systems, presently, the deterministic approach is the most widely used method. However, in the current competitive environment, the drawbacks become salient; hence security assessment based on the concept of risk is required. Risk assessment is an approach that quantitatively captures the factors that determine security level, namely likelihood and the severity of events...
This paper presents dynamic voltage collapse prediction on an actual power system using support vector machines. Dynamic voltage collapse prediction is first determined based on the PTSI calculated from information in dynamic simulation output. Simulations were carried out on a practical 87 bus test system by considering load increase as the contingency. The data collected from the time domain simulation...
This paper presents a combined static and dynamic voltage stability analysis method to predict dynamic voltage collapse in a practical power system using the power transfer stability index (PTSI). In the static voltage stability analysis, the contingencies due to load increase at all the load buses are ranked so as to determine the critical contingencies based on the maximum permissible load. Then,...
This paper presents a new method to determine voltage unstable area in power systems using Kohonen neural network (KNN) from dynamic voltage stability viewpoint. Using KNN, the buses in a power system are classified as critical and non critical buses based on the power transfer stability index values. The critical buses are then clustered to form the voltage unstable area in a power system. The proposed...
This paper presents a new indicator named as the power transfer stability index for predicting dynamic voltage collapse in power systems. In the time domain simulation process, dynamic power system models such as automatic voltage regulator, over excitation limiter, under load tap changer and induction motor are considered. The performance of the proposed indicator was tested using the 9-bus and the...
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