Sürdürülebilir Kalkınma Amaçları
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- ArticleAçık Erişim2018Analysis and performance with vertical divided multilevel voltage on phase of induction engine
Can, Erol
In this study, the quality of the transformed energy form is analysed after comparing the single-phase induction motor operated by the SPWM inverter to the 15-level LPWM inverter. Firstly, multilevel inverter and pulse width modulation are designed. The multi-level inverter has sixteen IGBT switches because inverter circuit is constructed with high multilevel inverter topology. Linear pulse width modulation (LPWM) is designed for operation of sixteen switches in the inverter circuit. Secondly, equations of the induction motor are calculated according to d-q axis with creating 15-level alternating voltage. After described equations, 15-level inverter running single phase induction motor is formed at the Matlab Simulink. The obtained results are analyzed according to motor performance and harmonic distortion of the created alternating energy after the proposed model is simulated. Finally, Simulation results of the proposed system are compared with simulation results of SPWM inverter controlling the single-phase induction motor.
RDL Kalıcı Kaydıİncele - ArticleYalnız künye2018A novel SSPWM controlling inverter running nonlinear device
Can, Erol; Sayan, H. Hüseyin
In the paper, Step sinus pulse width modulation (SSPWM) three phase inverter is tested on a nonlinear device which can produce harmonics. There are 12 switches on active and passive cases. On the inverter, operations of switches are provided by arranged SSPWM which can be calculated with similarity rules of triangles. A mathematical model of inverter is obtained with operating characteristics of the switches determined. SSPWM technique is used to control non-linear devices as thyristor and rectifiers which are widely used in electronic systems. So, single phase alternating voltage is converted to direct voltage with rectifier circuit to provide input voltage of inverter. After that, Six switches of common three phase inverter model are connected to six thyristors controlling inputs and outputs of three phase loads so that performance of SSPWM can be investigated on high level harmonic of loads. The inverter load of resistive (R) and inductive (L) are performed at the MATLAB Simulink so that SSPWM technique could be showed the reducing effect of the harmonic on loads. So, SSPWM and SPWM controlling inverter are performed on frequencies. Then, performances of common SPWM and SSPWM running nonlinear loads are compared with results.
RDL Kalıcı Kaydıİncele - ArticleYalnız künye2017DC Motor Controlled by IGBT Switches with Linear Pulse Width Modulation
Can, Erol
Looking at many of the work done so far, it seems that the DC motor is the most preferred option if an engine system is preferred for the desired speed-adjustable operation. This paper has been carried out by using the Partial Linear Pulse Width Modulation (LPWM) method without the current (DC) to direct current (DC) converter and starter in order to control torque , current and speed variation of the DC motor. Therefore, linear pulse width modulation is firstly produced in Matlab SİMULINK. Then, DC current and torque measurements are made after switching the direct current sources with the LPWMs in sequence for DC motor
RDL Kalıcı Kaydıİncele - ArticleYalnız künye2017THE PERFORMANCE OF THE DC MOTOR BY THE PID CONTROLLING PWM DC-DC BOOST CONVERTER
Can, Erol; Sayan, Hasan Huseyin
This paper presents the PID controlling direct current (DC) to the direct current boost converter feds DC motor which has a 3.68 kW and 240 V of DC voltage input on its characteristics. What is first formed is the boost converter mathematical model at the design stage. Secondly, a mathematical model of the DC motor is created so that the boost converter with the machine can be established and modeled at the Matlab Simulink. The PID controller is considered for arranging a pulse width modulation for a boost converter switch because the needed voltage is provided for a DC motor. After that, the PID controlling direct current (DC) to a direct current boost converter running the DC motor is implemented at the Matlab Simulink. In addition to that, the only constant source running the DC motor is simulated at the Matlab Simulink. The DC motor operated by the PID controlling converter that has a low input voltage is compared to the DC motor operated by the high constant DC voltage. A low voltage input converter controlling the DC motor has a high performance according to the high constant DC source running the DC motor.
RDL Kalıcı Kaydıİncele - ArticleYalnız künye2017Novel high multilevel inverters investigated on simulation
Can, Erol
This paper presents a novel high multilevel inverter topology which is based on the created DC voltage levels at loads of the inverter. The circuit model is demonstrated by explaining the relationship between switches, sources and loads. According to the proposed inverter topology, the number of power switches connected to negative side of DC source is constant on inverter, while the number of power switches connected to positive side of DC sources is increasing. Therefore, linear pulse-width modulation (LPWM) is described for operating switches after pulse-width modulation method is developed to generate the PWM signals. Then, mathematical equations are given when resistive (R), inductive (L) and capacitive (C) loads are connected in series on a 9-level inverter. Finally, the performances of the proposed inverters are observed through MATLAB/SIMULINK simulations after the designed multilevel inverters are simulated. So, 6-level, 9-level and 11-level inverters are compared with voltages, currents and harmonic distortions. Harmonic distortions reduce with increasing level of inverter, while three multilevel inverters are investigated on different modulation indexes. The results demonstrate the satisfactory performance of the inverter and verify the effectiveness of a novel high multilevel inverter topology.
RDL Kalıcı Kaydıİncele - ArticleAçık Erişim2017The increasing harmonic effects of SSPWM multilevel inverter controlling load currents investigated on modulation index; [Pojačavajući učinci harmonika SSPWM višerazinskog izmjenjivača u reguliranju struja opterećenja istraživanih na indeksu modulacije]
Can, Erol; Sayan, H. Hüseyin
Step sinus pulse width modulation (SSPWM) multilevel inverter is designed in order to control loads with reducing nonlinear effects as harmonics. Multilevel inverter has six switches for every phase and the switches are connected to control inputs and outputs of load. This method focuses on the identification of twelve IGBT and six MOSFET switches as nonlinear device, which consists of only the active and passive switches in three phase multilevel inverter. Inverter switches operate with pulse width modulation after signals of six step sinus compare with 2- small triangle signals for every phase. While operating characteristics of the switches are determined, a mathematical model of inverter controlling loads can be formed. After that, two PWM techniques are used to investigate the non-linear effects on this circuit model which contains mixed switches in its structure. So, the inverter load of ohmic (R) and inductive (L) are performed at the simulation so that performance of SSPWM multilevel inverter could be showed on loads. So, SSPWM and SPWM controlling inverter is tested on frequencies and modulation indexes. Then, performances of SPWM inverter and SSPWM multilevel inverter running loads are compared with output results.
RDL Kalıcı Kaydıİncele - ArticleYalnız künye2016DIFFERENT MATHEMATICAL MODEL FOR THE CHOPPER CIRCUIT
Can, Erol; Sayan, H. Huseyin
In this study, dc-dc boost converter circuit is described as transformer circuit for direct form of energy in the electrical machine driver system of electrical and electronic engineering. First, mathematical equations of the converter circuit are created when circuit switch opened and closed controlling two states. Then, the equations are resolved for common equation so that the state space equation is formed in matrix form. A mathematical model of the converter circuit is performed at the Matlab Simulink.
RDL Kalıcı Kaydıİncele - ArticleAçık Erişim2016PID and fuzzy controlling three phase asynchronous machine by low level dc source three phase inverter; [PID i neizrazito upravljanje trofaznim asinhronim motorom pomoću trofaznog izmjenjivača slabe istosmjerne struje]
Can, Erol; Sayan, H. Hüseyin
In this study, a three-phase asynchronous motor driven by a broad-based system is described. So, mathematical model of converter, sinus pulse width modulation for the three phase inverter, and mathematical model of three-phase asynchronous motor have to be utilized in order to establish the system. After creating such a system, Fuzzy Logic and PID controllers are focused in order to get satisfactory results which are short settling time of rotor speed, low harmonic and short settling time of high phase current. Created mathematical models are run at the MATLAB Simulink. Direct voltage is applied to converter input. This voltage is represented by a renewable energy source that could be obtained from solar energy source. The direct voltage is lower than the peak of the alternating voltage. The alternating voltage is obtained from output of the inverter to drive the induction motor. Firstly, resistive (R) and inductive (L) loads are driven. Secondly, three-phase asynchronous motor (ASM) is driven with the low direct voltage. After that, simulation results are given in order to demonstrate performance and effectiveness of the proposed system.
RDL Kalıcı Kaydıİncele - ArticleAçık Erişim2016SSPWM three phase inverter design and experimented on unbalanced loads; [Konstrukcija SSPWM trofaznog izmjenjivača i primjena kod nestabilnih potrošača]
Can, Erol; Sayan, H. Hüseyin
A circuit-oriented approach for the analysis of pulse width modulation (PWM) three phase inverter is presented in order to run unbalanced loads in low nonlinear effects as harmonics. This method uses the identification of a six switch nonlinear device, which consists of only the active and passive switches in three phase inverter. When operating characteristics of the MOSFET switch are determined according to step-sinus pulse width modulation method, an average equivalent inverter model can be formed. After that, SSPWM technique is used to drive unbalanced loads in order to compare with common pulse width modulation (PWM) running unstable loads. First, the inverter load of resistive (R) and inductive (L) are performed at the MATLAB Simulink so that by PWM technique could be shown the reducing effect of the harmonic on loads. After that, the system is implemented by real elements as MOSFETs, PIC17F877A, PC 817 phototransitors.
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