scholarly journals Comparative analysis of Conventional Converter and SVPWM based Matrix Converter

2020 ◽  
pp. 362-368
Keyword(s):  
Pulse Width ◽  
Pulse Width Modulation ◽  
Research Work ◽  
Matrix Converter ◽  
Switching Scheme ◽  
Matrix Converters ◽  
Semiconductor Switches ◽  
Three Phase ◽  
Modulation Techniques ◽  
The Matrix

In recent years, matrix converters have become increasingly attractive for these applications because they fulfill all the requirements, having the potential to replace the conventionally used rectifier_dc link_inverter structures. The matrix converter is an array of controlled semiconductor switches that connects directly the three-phase source to the three-phase load. It utilizes bidirectional controlled switch to achieve automatic conversion of power from AC to AC. In the last few years, an increase in research work has been observed, bringing this topology closer to the industrial application.There are several modulation techniques for matrix converter out of each Space Vector Pulse Width Modulation(SVPWM) is considered. It is an algorithm for the control of pulse width modulation width modulation (PWM). Indirect matrix converter is implemented because of its simplicity in switching scheme and advantages over Direct matrix converter. Three phase matrix converter is studied and implemented using MATLAB/SIMULINK. Finally the results are compared with conventional dc-link back to back converter. From the results, it can be concluded that THD level of line voltages, phase voltages is reduced in case of Indirect matrix converter when compared to conventional dc-link back to back converter.

scholarly journals Simulation of Matrix Converter by using MATLAB-Simulink

2021 ◽  
Author(s):  
Abhinav Vinod Deshpande
Keyword(s):  
Pulse Width Modulation ◽  
Matrix Converter ◽  
Matlab Simulink ◽  
Matrix Converters ◽  
Variable Voltage ◽  
Power Electronic Circuits ◽  
The Matrix ◽  
Power Frequency ◽  
Frequency Changes ◽  
Intermediate Circuit

The matrix converter converts the input line voltage into a variable voltage with an unrestricted output frequency without using an intermediate circuit, dc link circuit. A pure sine in and pure sine out is the unique feature of the matrix converter. This research paper also analyzes the basic operating principle and the simulation modeling of the direct matrix converter, which is controlled by the Space Vector Pulse Width Modulation technique by using the software which is known as MATLAB/Simulink. The most desirable features in the power frequency changes can be fulfilled by using the matrix converters, and this is the reason for the tremendous interest in the topology. Since the power electronic circuits which is known as the motor drives are used to operate the AC motors at the frequencies other than that of the supply.

scholarly journals Hybrid Pulse Width Modulation Strategy of a High-Frequency Link Three-Phase Four-Leg Matrix Converter Based on Compensation Theory

2019 ◽  
Vol 10 (1) ◽  
pp. 39
Author(s):  
Rutian Wang ◽  
Fuxu Wang ◽  
Haining Pan ◽  
Sutong Liu
Keyword(s):  
High Frequency ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Matrix Converter ◽  
Compensation Method ◽  
Switching Frequency ◽  
Control Logic ◽  
Compensation Strategy ◽  
High Switching Frequency ◽  
Three Phase

A high-frequency link (HFL) three-phase four-leg matrix converter (MC) can output three-phase balanced voltage for unbalanced load conditions. It is an inverter with great development potential. This paper presents a hybrid pulse width modulation (HPWM) strategy for a four-wire matrix converter based on the fourth bridge leg compensation method. Firstly, the rear-stage topology of a high-frequency link three-phase four-leg matrix converter is decoupled into two sets of ordinary three-phase four-wire inverters. Then the compensation strategy is applied to separate the fourth bridge leg from the coupling of the ordinary inverter and realize its independent control. Under the theory of compensation, the fourth bridge leg plays a role in compensating the deviation of the neutral point potential when the load is unbalanced, the fourth bridge leg does not need to work when the load is balanced. Finally, the fourth bridge leg modulation wave obtained by the compensation method is combined with the front three bridge leg modulation waves to perform the coupling control using the hybrid pulse width modulation strategy. It has changed the problem that the previous hybrid pulse width modulation strategy cannot be directly applied to the four-wire matrix converter. This strategy is simple to control, without adding any auxiliary commutation detection circuitry, can effectively solve the inherent commutation problem in the bidirectional switch tube of the four-wire matrix converter. It simplifies the complexity of the system, reduced control cost, and high switching loss caused by high switching frequency. The fast adjustment function of compensation strategy makes the dynamic response performance of system under load fluctuation state more prominent, the harmonic distortion rate is smaller. The perfect combination of two strategies allows the high-frequency link three-phase four-leg matrix converter with any form of load to give full play to its structural advantages. The related work verifies the feasibility and effectiveness of the modulation method and control logic.

scholarly journals Matrix Converter Control Strategies and Modulation Techniques

2019 ◽  
Vol 8 (2S8) ◽  
pp. 1176-1182
Keyword(s):  
Control Strategies ◽  
Matrix Converter ◽  
Phase 3 ◽  
Control Techniques ◽  
Three Phase ◽  
Modulation Techniques ◽  
The Matrix ◽  
New Varieties ◽  
Research Achievement ◽  
And Control

The matrix converter is an variety of restrained semiconductor changeovers that interfaces straightforwardly to the three-phase (3-Ø) supply to the 3-Ø load. This paper presents the cutting edge see in the improvement of this converter, beginning with a concise recorded survey. A significant piece of this paper is discourse of the most significant modulation and control techniques grew as of late. Uncommon consideration is apt to current contemporary technologies cultivated to take care of commutation issue. certain new varieties of energy bidirectional changeovers associated in a exclusive module and certain pragmatic outcome akin to the feasible appeal of this methods like over voltage safety, accustom of filtrate, and ride-through skill are further presented. Ultimately, this paper consists of simulation blocks and their corresponding results and also relation between different control techniques. Over the most recent couple of years, an expansion in research achievement obsolete watched, carrying this analysis confining to the modern requisition.

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