scholarly journals Performance Analysis of Diode Clamped Five-Level Inverter integrated PV Grid system using Soft computing based MPPT Scheme

2021 ◽  
Vol 9 (11) ◽  
pp. 1641-1649
Author(s):  
M. Eswara Prasad
Keyword(s):  
Fuzzy Logic Control ◽  
Pi Controller ◽  
Voltage Source ◽  
Grid System ◽  
Performance Indices ◽  
Pv System ◽  
Dc Voltage ◽  
Pv Panel ◽  
Logic Control ◽  
Pv Grid

Abstract: This paper focuses on diode clamped five-level inverter for the application of PV system. Carrier based phase disposition method is adopted for control of inverter switches. The five-level diode clamped integrated to grid connected PV system is considered for the performance evaluation. The PI controller is adopted for the regulation of DC voltage. The Fuzzy Logic Control (FLC) based MPPT scheme is used to track the maximum power from the PV panel. The performance indices including PV current, DC link voltage and %THD of diode clamped inverter based grid connected PV system is compared with conventional two-level Inverter. The proposed work is carried out in the environment of Matlab/Simulink. Keywords: Diode clamped five-level inverter, FLC MPPT, Two-level voltage source inverter, PWM, THD, PV, Grid.

Comparative Analysis of Grid Connected Photovoltaic Based Z-Source Inverter with PI and PID Controllers

2017 ◽  
Vol 14 (1) ◽  
pp. 577-584
Author(s):  
S Kamalakkannan ◽  
D Kirubakaran
Keyword(s):  
Comparative Analysis ◽  
Pid Controllers ◽  
Grid System ◽  
Pv System ◽  
Matlab Simulink ◽  
Pv Inverter ◽  
Pv Panel ◽  
Time Period ◽  
Ac Current ◽  
Simulation Results

In this work, a grid system attached Z-Source inverters for PV system with perturb and observation algorithm is projected for changing irradiance and to use full obtainable PV power. The boost operation of PV power is attained in inverter using the perception of shoot-through time period. The PV inverter is an important component in a PV system. It executes the conversion of variable DC output of the PV panel module(s) in to pure sinusoidal 50Hz AC current. This pure sinusoidal AC in turn is fed to the grid connected system. The simulation is carried out in Matlab/Simulink platform and benefits of projected systems are emphasised with the aid of simulation results.

scholarly journals Design Of High Attenuation and Less Damping Filter for Renewable Energy Source with Parallel Lrc Component

2019 ◽  
Vol 8 (10) ◽  
pp. 366-372
Keyword(s):  
Field Effect Transistor ◽  
Pulse Width Modulation ◽  
High Efficiency ◽  
Oxide Semiconductor ◽  
Voltage Source ◽  
High Frequencies ◽  
Dc Voltage ◽  
High Attenuation ◽  
Pv Panel ◽  
Effect Transistor

Photovoltaic (PV) panel produces a DC voltage as output which is always having random variations which is further required to convert into a constant DC voltage output, a Voltage Source Inverter (VSI) is the required and further another DC to AC VSI convertor required. VSI used Pulse width modulation (PWM) for switching of metal Oxide semiconductor Field Effect Transistor (MOSFET) and a very fast switch cause harmonics in the circuits, which further need to remove by filters. The available filters are good but reducing either the overall efficiency by 2-3 percentage or giving high damp at resonant frequency. that issue must be resolve, proposed work has come up with a new design in which Parallel LCL-R (PLCL-R) type filter which has high efficiency and high attenuation than previous and better response at high frequencies. Proposed design is been developed with help of Matrix laboratories (MATLAB) Simulink design, where power electronics component tool box 'sim-electronics and sim-escape' used. The results of proposed work found better then LCL filter, TRAP filter and other filters of base works.

scholarly journals An improved 1-φ rectifier system using fuzzy logic control with 3-φ variable frequency drive

2018 ◽  
Vol 7 (2.7) ◽  
pp. 520
Author(s):  
M Kiran Kumar ◽  
SK Almaj ◽  
K S. Srikanth
Keyword(s):  
Fuzzy Logic ◽  
Fuzzy Logic Control ◽  
Fuzzy Logic Controller ◽  
Fuzzy Controller ◽  
Output Frequency ◽  
Variable Frequency Drive ◽  
Dc Voltage ◽  
Motor Current ◽  
Logic Control ◽  
Voltage Ripple

A 3-Φ VFD steam fed from a 1-Φ AC supply. To stop more stresses in the components within the drive and within the input supply,  the drive output power should be restricted. To beat this problem, several VFD makers decided that drive to be de-rated. As often as possible, the drive’s output frequency is limited, supported the dc voltage ripple hence the DC capacitors aren’t overstressed. Through the tradional technique decrement of strain within the DC Capacitors, it doesn’t consider the stresses in other parts of the drive, particularly the diodes at the input and terminal blocks of input. During this paper, brand new fuzzy controller based technique for the protection of the drive the motor   current with FLC is projected. The motor  current is shown to possess info relating the stresses in numerous elements of the VFD together with the diodes at the input, terminal blocks of the input, and therefore the Dc capacitors. The o/p power is projected to be restricted by decreasing the o/p frequency supported the avg and ripple abundancy of the quadrature axis current rather than the dc voltage ripple. To prove this conception, a comparison is made between fuzzy logic controller based technique employing a less power VFD fed from a 1-Φ ac, and the conventional dc voltage ripple based frequency technique.                                                                                                                                                                  

scholarly journals Grid Synchronisation of Photovoltaic Distributed Generation using Hybrid FUZZY-PI Controller

2019 ◽  
Vol 9 (1) ◽  
pp. 5385-5390
Keyword(s):  
Power Generation ◽  
Distributed Generation ◽  
High Power ◽  
Fuzzy Logic Control ◽  
Power Production ◽  
Pi Controller ◽  
Logic Control ◽  
Fuzzy Pi Controller ◽  
The Cost ◽  
Pv Power Generation

The power generation of the world has to be increased every year as the demand increases rapidly. The high power generations are done by hydro, thermal and atomic. The power production cant is increased every year as the cost of power production increases due to this constraint and increase in high power generation increases pollutions. So the distribution side generation are used, and the PV based power generations are used mostly as the maintenance is less comparatively. The power control in PV power generation is done by DQ technique which is most widely used. It has a PI controller to regulate the real power. In this paper, the fuzzy logic control which is combined with the PI controller is used to increase the controllability of the power system. The MATLAB 2017b is used to do the simulation of the applied technique and the results are discussed with improvements.

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