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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...
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...
In this paper, a hysteresis current controller with reduced losses for three-phase grid-connected inverter is proposed. In the proposed hysteresis current controller, one of the inverter phase is clamped to the positive or negative inverter buses depending on the polarity of the phase current. Totally, each inverter phase is clamped for the duration of one third of the fundamental output period. As...
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...
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...
To design the current controller for the grid-connected inverter (GCI), the grid is usually assumed as balance. Hence, the current controller performance gets worse when the grid is unbalanced. In this paper, a virtual inductor is proposed to suppress the effects of grid unbalances. Virtual inductor is an additional control algorithm that changes the system behavior as if there is a real inductor...
Boost converter is one of power converters which are used to fulfill the need of electricity, such as in commuter line and renewable energy power plant This converter is a non-linear converter which is applied by controlling switching in order to get the intended output. Hence, it is difficult to be controlled with a common controller such as VCM and CCM which are linier controllers. Therefore, the...
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...
Medium reservoir hydro electric power plant has been long serving as conventional renewable energy source in Indonesia, mostly in Jawa Island. Shortly after the independence of Republic of Indonesia, large hydro power plants began to be constructed for example Jatiluhur and Riam Kanan, followed by Sigura-gura, Cirata, Saguling, and several others more. Meanwhile, small-sized and microhydro-run-of-river...
Voltage source converter (VSC) technologies present a bright opportunity in a variety of fields within the power system industry. Modular multilevel converter (MMC) technology is expected to supersede two level and three level VSC technologies for HVDC applications due to their advantages in terms of scalability, performance, and efficiency. The paper deals with fault study of VSC HVDC with MMC technology...
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...
Influence of magnet pole section area and slot opening width on the cogging torque in Inset Permanent Magnet Synchronous Machine is investigated. The number of 6 poles and 18 stator slots are fixed. The slot opening of the stator is fixed and magnet poles area slotted. Finite element method magnetic are used for computation of Inset-Permanent Magnet Synchronous Machine characteristics in this paper...
Multicell inverter is a power electronic circuit which is capable of generating AC voltage output that has low ripple. In this paper, the use of hybrid control in multicell inverter was analyzed with the aim of producing a low ripple with an easy and efficient control. The basis of the hybrid control is to minimize the cosine value of the angle between x-xd and fn(x). The output of the hybrid control...
Comparation of switched-reluctance motor (SRM) with 6/4 and 6/10 design configurations are presented in this paper. Both configurations are calculated and designed in detail to obtain the flux and torque characteristics. The study also conduct analysis for both configurations. Simulation of SRM using 2D finite element model is presented to support the analysis, and used to predict the torque produced...
The system of academic rank structure and first appointment regulation for academic staff has been established since 1987, this applied for either state and private-owned universities. The academic rank structure was divided into 9 level, starting from Associate Lecturer rate 100 credit points up to Full Professor rate 1000 credit points. Two years of staying in the previous position was mandatory...
Electric cars becomes one of interesting object for researchers since its ability to meet the requirements of environmentally friendly vehicles. The driving force of electric car comes only from electric motor, hence the car performance is mostly determined by its motor dynamic response. This paper presents the modeling of PMBLDCM (Permanent Magnet Brushless DC Motor) with the load characteristics...
In the next few years, electric cars will be one of the main vehicles in transportation system and are designed to meet the requirement of high efficiency and clean energy vehicles. Since the force to propel electric vehicles comes only from electric motor, the profile of tractive effort -speed of the vehicles is determined by the torque - speed profile of the motor. The torque - speed of the electric...
Measurements of wind speed usually done by using anemometer, these data can be used as a reference signal to the wind turbine control, or it can be used also for mapping the wind energy potential. Recently, the use of anemometer on wind turbines are often eliminated because of technical and cost reasons. This paper describes an alternative method to determine the upstream wind at the wind turbine...
If the sizing of renewable energy power plant is planned with a less reliable data of its energy sources, usually in the future, the power system will have poor performance. Such cases often occur in various regions, including Indonesia. This problem can be solved through observation and measurement in the power systems using a data logger. Data logger is the electronic equipment which can record...
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