SSPWM three phase inverter design and experimented on unbalanced loads

2018

This article deals with the energy transmission line system which feeds from solar energy at the MATLAB Simulink. So, direct voltage is considered to be converted as an alternating voltage by a 35-level inverter after the solar power plant which has the power of 110 MW an produce 360 kV of direct voltage. A line which covers 240 km of distance is preferred to transmit electrical power from the A1 point to an A2 point. Due to this, the required mathematical equations are calculated with a circuit analyzing method for the line modeling in the simulation. Experiments on the model are carried out at the MATLAB Simulink after the creation of an energy transmission line. After that, when measurements are made taking into consideration the A2 node; the capacitor voltage, the transformer current, the A2 node current, and the fault current, values are given according to the converted voltage at the frequencies of 100 Hz, 80 Hz, and 50 Hz. The obtained results demonstrate the success of the proposed line system, while power is distributed with eliminated fault at a long distance at different frequencies.

Section: Introductionmentioning

confidence: 46%

The Modeling and Analysis of a Power Transmission Line Supplied by a Solar Power Plant

2018

“…This article, unlike the studies listed in the literature, wishes to create a new DC-DC converter structure and mathematical model against the traditional DC-DC converter structures. The proposed circuit structure with its output voltage multiplexing capability offers superior hardware and a different mathematical model than the conventional converters [10][11][12]. Since it has a simpler structure than other cascade converters, it contains fewer circuit elements [13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

PWM controlling of a new multi DC-DC converter circuit

2019

The design and development of DC-DC converter circuits are important for increasing and decreasing the direct current energy sources at operating the loads and systems. In this study, a multi DC-DC converter structure is described. The purpose of creating this circuit structure is to create a more effective circuit by offering a different circuit structure. For the proposed DC-DC converter, a circuit structure with five switches is created. This circuit structure is described by mathematical models according to the operation of the four parts PWMs in different time periods. After the mathematical analysis of the circuit structure, the proposed circuit and conventional circuit are operated in the Matlab Simulink. The obtained results are compared. According to the comparisons, the proposed circuit produces a higher output voltage than the traditional one and has a higher performance. Additionally, the circuit is operated for values of different loads using different switching times. Finally, voltages and currents are observed on loads.

“…The DC energy from the AC source is converted back into AC current to control the power line. The quality of the converted energy from the DC current decreases since the current and voltage contain a high amount of harmonic distortion [10][11][12]. Multi-level inverters are used to eliminate or reduce these unwanted effects.…”

Section: Introductionmentioning

confidence: 99%

Power regulation by couple half wave LPWM rectifier at three-phase loads

2019

The paper presents an application of power control by couple half wave LPWM rectifiers processing at the energy distribution line. The switching method with the components of semiconductor for alternating energy control in the energy distribution line is used on alternating energy sources. In three-phase power line and load, power control and regulation are done with the proposed modulation correction index (MCI). Therefore, the simulation model of 3-phase energy distribution is established after the relationships between the energy sources and the circuit elements are determined by the circuit analysis method. The controls of the current and the voltage are done by trying at the different loads in the line at the simulation. According to the modulation correction index (MCI), currents of unbalanced loads are balanced by the proposed method on the power line. Then, the balance currents and powers that MCI provides are calculated. Finally, a power line of 15 km at length that is created by connecting the model of RLC is tested. Obtained results show the effectiveness of the proposed method.