scholarly journals A Review on Small Power Rating PV Inverter Topologies and Smart PV Inverters

Electronics ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 1296
Author(s):  
Indragandhi Vairavasundaram ◽  
Vijayakumar Varadarajan ◽  
Pitta Janakiram Pavankumar ◽  
Ramesh Kumar Kanagavel ◽  
Logesh Ravi ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Power Distribution ◽  
Selection Criteria ◽  
High Efficiency ◽  
Renewable Energy Sources ◽  
Switching Frequency ◽  
Power Electronic ◽  
Electronic Circuits ◽  
Power Electronic Circuits ◽  
Uninterruptible Power

The two most critical deciding factors for power consumption are energy efficiency and cost. Power electronic circuits are widely used and play an important role in achieving high efficiency in power distribution to customers and power transfer from source to load. Furthermore, solar energy is abundant, sustainable, and pollution-free in nature. Power electronic circuits are used in high-power applications with voltages ranging from a few millivolts to thousands of volts and wattages ranging from a few mW to megawatts. This paper examines a variety of inverter topologies and their modeling, as well as a comparison of single-stage and multi-stage/inverter topologies depending on the application. The main aim of control techniques is to keep Total Harmonic Distortion (THD) to a minimum and the switching frequency within the permissible range so that inverters for renewable energy sources, electric vehicles, uninterruptible power supply (UPS) systems, and hybrid energy storage systems can work efficiently. Plug-and-play, adaptability, self-awareness, and other features should all be included in a smart inverter. Based on the findings of this comparative analysis, selection criteria are established. This comparative analysis can be used to develop selection criteria for choosing inverter circuits for the various applications described in this paper.

Research on Modeling and Simulation of Power Electronic Circuits Based on MATLAB

2014 ◽  
Vol 687-691 ◽  
pp. 3106-3109 ◽  
Author(s):  
Quan Guo ◽  
Kun Xu ◽  
Fang Yi Sun ◽  
Xue Qian Li
Keyword(s):  
Modeling And Simulation ◽  
Design Process ◽  
High Speed ◽  
High Efficiency ◽  
System Structure ◽  
Power Electronic ◽  
Electronic Circuits ◽  
Actual System ◽  
Power Electronic Circuits ◽  
Simulation Results

the example of three-phase bridge controlled rectifying circuit discussed the method of the utilization of MATLAB SIMULINK on the modeling and simulation of power electronic circuits, and gave the simulation result waveform, verifying the convenience, intuition, high-efficiency, high speed, genuineness and accuracy of this method. This method can also make modeling and simulation on quite complex circuits, power electronic conversion system, and electric drive automatic control system. The systematic modeling is very similar to the design process of the actual system. Users can get the simulation results of the system quickly without programming and the deduction of mathematical models of circuits and systems. The analysis on the simulation results can transform the system structure or modify relevant parameters in order to make the system get the required results and performance, which can greatly accelerate the analysis or design process of the system.

Discontinuous Control and Stability Analysis of Step-Down DC-DC Voltage Converters

2020 ◽  
Vol 38 (3A) ◽  
pp. 446-456
Author(s):  
Bashar F. Midhat
Keyword(s):  
Stability Analysis ◽  
Lyapunov Stability ◽  
Control Method ◽  
Power Electronic ◽  
Electronic Circuits ◽  
Dc Voltage ◽  
Power Electronic Circuits ◽  
Lyapunov Stability Criterion ◽  
Control Step ◽  
Step Down

Step down DC-DC converters are power electronic circuits, which mainly used to convert voltage from a level to a lower level. In this paper, a discontinuous controller is proposed as a control method in order to control Step-Down DC-DC converters. A Lyapunov stability criterion is used to mathematically prove the ability of the proposed controller to give the desired voltage. Simulationsl1 are performedl1 in MATLABl1 software. The simulationl1 resultsl1 are presentedl1 for changesl1 in referencel1 voltagel1 and inputl1 voltagel1 as well as stepl1 loadl1 variations. The resultsl1 showl1 the goodl1 performancel1 of the proposedl1 discontinuousl1 controller.

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