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The value of sub-transient reactance depends on the design of damper winding or amortissuer. All synchronous generators have sub-transient reactants even though it does not have damper winding physically. The damper winding can contribute to reduce the sub-transient current when generator in fault condition. The generator quantitative parameters are used to perform the simulation using MATLAB/Simulink...
This paper validates the advantage of using an integrated electric vehicle-battery model in torque control application. In the integrated electric vehicle-battery model, battery dynamics is explicitly included in the model. A well-known linear quadratic integral (LQI) design is adopted here to have an optimal controller with zero tracking error. The energy consumption is, however, observed through...
Hybrid between PV and Generator with battery is one common technology that has been used in the world due to meet the system with the presence of renewable energy. These systems are typically used in isolated area or areas away from the grid. In this paper the hybrid PV-Generator with battery power plant will be designed for Aha Village in Morotai Island which is one island in Indonesia that located...
This paper investigates the optimum phase number for multiphase PWM inverters. The input current ripple is used as a performance indicator. Analysis results show that phase number more than nine cannot provide significant input current ripple reduction. Experimental results are included in this paper to show the validity of the proposed analysis method.
Energy-efficient system is very desirable in an electric vehicle. Having energy-efficient control systems in the vehicle should be advantageous in this regard. This paper presents an integrated battery-electric vehicle model to capture battery dynamics. In order to evaluate the usefulness of the model for having energy-efficient system, a linear quadratic integral (LQI) control of the vehicle's speed...
In the recent decades, an enormous awakening in electrical vehicles researches and industries has raised the needs of safety and simplicity in the electrical vehicle battery charging. Many options are offered to transfer the electrical power wirelessly, comprising Inductive Power Transfer method which is a widely known way in doing a near-field wireless power transfer. In this paper, the proposed...
Odd stator slot-number permanent magnet brushless DC motor with asymmetrical-winding has the advantage of unique flux distribution in the stator slot. It could be explored to make sensorless control using flux linkage variation method for this kind of machine. This paper investigates the capability of the 9-slot 8-pole PM BLDC motor to be controlled sensorless from zero speed. The results show that...
The concern for the supporting power converters is unavoidable in the development of inductive power charging system technology for electric vehicle application. In both the primary and secondary sides, power converters are needed to both generate and harvest the high frequency AC power which is transferred wirelessly in a resonant frequency. In his paper, we develop the power converters that are...
This paper presents implementation prototype data logger of PV monitoring system based on low cost online monitoring for existing 1.6 kWp single-phase grid-connected photovoltaic (PV) system in Electrical Energy Conversion Research Laboratory (EECRL) of School of Electrical Engineering and Informatics (SEEI), Institute of Technology Bandung (ITB). For cost reduction, the data logger developed by microcontroller...
A multiple three-phase machine can be symmetrical or asymmetrical, depending on the phase displacement between the three-phase stator winding sets. This paper investigates the optimal phase displacement to minimize the output current ripple of nine-phase PWM inverters. The output current can be separated into current components that produce air gap flux and current components that produce copper losses...
This paper presents about synchronous alternator design for 10625kVA capacity for small thermal power plants with gas or coal fuel in Indonesia. Indonesia, which has archipelago topology, needs small power plants especially in non-five main islands and playing rule as based load supply. The generator was designed to fulfill requirement specification from Indonesian Electricity Company (PLN) and verified...
In the past year mini car has been increase in production, this type vehicle need low cost drive train and low maintenance. Motor Switched reluctance has many advantages this motor have lower manufacturing cost with low maintenance. In this paper Switched Reluctance Motor 6/4 is proposed based on sizing-motor procedure. Optimize process using design of experience (DoE) with manual iteration, the final...
Currently there are 12.659 remote and underdeveloped villages in Indonesia that do not have access to public utility (PLN) electricity. From those villages, 2.519 of them have no electricity at all. The absence of electricity inhibited people's quality of life, and will hold down economic growth. Therefore, electrification of those villages is very important. The conventional way of electricity generation...
A simple method to verify an interior permanent magnet synchronous motor (IPMSM) design is presented in this paper. The method is based on the maximum torque per ampere (MTPA) and the maximum torque per voltage (MTPV) curve of the motor. In order to verify the method, a specified motor is used as a sample and comparison is made with the results from a motor design software based on Finite Element...
In this paper the comparison of Maximum Torque per Ampere (MTPA) and Constant Torque Angle (CTA) control for 30kW Interior Interior Permanent Magnet Synchronous Motor (IPMSM) is presented. MTPA is usually used for IPMSM which has a large saliency ratio for optimum torque in the machine. But for a small saliency ratio machine, MTPA control may be not produce significant result. In order to verify the...
This paper presents modeling of existing proprietary-based 1.6 kWp single-phase grid-connected photovoltaic (PV) system in Electrical Energy Conversion Research Laboratory (EECRL) of School of Electrical Engineering and Informatics (SEEI), Institute of Technology Bandung (ITB). The PV system was a grant from Indonesia State Utility Company (PT. PLN), included with the propietary inverter. Although...
The needs of good State of Charge (SOC) estimation method for lithium batteries are very high, not only useful for battery protection, preventing under-discharged, controlling the battery management system, and increasing the battery life, but also to increase the useable battery power. To make an SOC estimation method, second order Thevenin dynamic battery model is chosen, where the impedance values...
A model of a 10 kW BLDC motor controller is reconstructed by utilizing PSIM software. This design process starts by identification of the controller characteristics. The identifications includes the work mechanisms, capability work rating and other significant factors that must be considered in utilizing BLDC motor controller as electric vehicle drive. In this controller, there are some modes identified...
In this paper, a bidirectional dc fast charging system for electric vehicle is analysed by considering its impact on the distribution transformer. The proposed battery charger topology combines constant voltage and constant current strategy as the battery charging control techniques. Both of working mode works interchangeably depends on distribution transformer loading condition. The model is verified...
This paper describes an investigation of the impacts of DC Fast Charging Station on IEEE 34-node test feeder. This simulation includes fundamental characteristics of electric vehicles, such as battery capacity, and energy consumption in everyday trip. As those parameters depend on user behavior, a model for user behavior is also modeled in this investigation. Then, penetration level of car that uses...
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