Implementation of sinusoidal PWM technique for AC-AC matrix converter using PSIM
23 Mar 2011-pp 364-369
TL;DR: The main objective of this paper is to simulate and analyze the performance of matrix converter based on the different topologies i.e. single phase matrix converter, three phase to single phase Matrix Converter and three phases to three phase matrix converters using sinusoidal PWM technique.
Abstract: Matrix Converter is a single stage AC-AC converter. It can directly convert an ac power supply of fixed voltage into an ac voltage of variable amplitude and frequency. The matrix converters can contribute to the realization of low volume, sinusoidal input current, bidirectional power flow and lack of bulky reactive elements. Due to all these reasons, recently a lot of research has been picked up in the field of matrix converters. And the performance of this converter varies based on the control technique and the different topologies. So the main objective of this paper is to simulate and analyze the performance of matrix converter based on the different topologies i.e. single phase matrix converter, three phase to single phase matrix converter and three phase to three phase matrix converters using sinusoidal PWM technique. The simulation is carried out using PSIM and the results of switching sequence and the output voltage waveforms are presented in this paper.
Citations
More filters
21 Nov 2011
TL;DR: In this paper, a commercial power module of IGBTs connected in a Common-Collector (CC) configuration is presented, where the SVM methodology is presented through elucidative flowcharts from both the DSP and FPGA algorithms and their relationships.
Abstract: Matrix Converters (MC) are alternative circuits applied to direct AC-AC conversion, instead very common AC/DC-DC/AC converters. The first has advantages against the former, mainly about the bi-directional power flow, high power factor and has no large storage elements e.g. capacitor. Day by day the MC, mainly in embedded systems is noted an increase usage of its principles. The space-vector modulation (SVM) technique was adopted, resulting in practically sinusoidal waveforms on the input and output currents, with input displacement factor control and negligible harmonics amplitude. Besides a short revision of MC fundamentals, the paper presents a complete design procedure and implemented in a commercial power module of IGBTs connected in a Common-Collector (CC) configuration. The SVM methodology is presented through elucidative flowcharts from both the DSP and FPGA algorithms and their relationships. Finally, experimental results are presented of a prototype driving a 1 Hp, 4 poles AC induction motor.
3 citations
Dissertation•
01 Jan 2013
TL;DR: In this paper, the authors investigated the AC Chopper's ability to produce harmonic current and concluded that using the AC chopper to produce multiple harmonics for a single control input frequency is very difficult if not impossible.
Abstract: The Step-down AC Chopper (hereby referenced as "AC Chopper") has been presented in recent academic papers as a possible solution for reactive compensation. The goal of this project was to investigate and evaluate the topology to see if the praise could be justified. In addition, this project set a goal to take the research one step further by investigating if the uses of the AC Chopper could be expanded to include active filtering. The ability of the AC Chopper converter to produce harmonic current was investigated. This was the first step in developing the AC Chopper's active filtering functionality. Theorems were developed and simulations were performed with both open and closed loop control. The results show that using the AC Chopper to produce harmonic current is very difficult if not impossible. This is due to intrinsic characteristics of the topology which leads to the converter producing multiple harmonics for a single control input frequency. Hence it was concluded that the AC Chopper is not fit for performing active filtering and that the results do not support continuing any further research on the AC Chopper's filtering capabilities. A prototype of the converter was developed and built to compare the simulations against real observed behavior. The development process has been well documented in this thesis. Open loop control of the prototype was successfully implemented. The results show a good relation between the theory and the measured values. There are certain challenges connected to the realization of the AC Chopper, and the ways of dealing with these challenges have been described herein. The topology was also compared to available technology to evaluate the competitiveness regarding reactive compensation at fundamental frequency. The AC Chopper was not found advantageous compared to the VSI, a modern available solution. The efficiency of the AC Chopper has been found to be slightly higher in simulation, but this has yet to be validated with tests on real prototypes. In addition to lacking the filtering capabilities, the AC Chopper has other disadvantages including expensive components and greater volume. Together the findings in this report suggests that the AC Chopper should be limited to use in single phase systems for reactive compensation at fundamental frequency in open loop control.
1 citations
Cites background from "Implementation of sinusoidal PWM te..."
...It is able to produce an output voltage with different amplitude and frequency to the input voltage[24]....
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...Nonetheless the matrix converter concept can also be used in a single phase arrangement[24]....
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References
More filters
Book•
21 May 1993
TL;DR: In this article, the authors present an overview of three-phase transformers and their application in DC-DC Converters, including the following: 1. Power Semiconductor Diodes and Circuits 2. Power Transistors 3. Diode Rectifiers 4. Power Supplies. 5. DC Drives.
Abstract: 1. Introduction. 2. Power Semiconductor Diodes and Circuits. 3. Diode Rectifiers. 4. Power Transistors. 5. DC-DC Converters. 6. Pulse-width Modulated Inverters. 7. Thyristors. 8. Resonant Pulse Inverters. 9. Multilevel Inverters. 10. Controlled Rectifiers. 11. AC Voltage Controllers. 12. Static Switches. 13. Flexible AC Transmission Systems. 14. Power Supplies. 15. DC Drives. 16. AC Drives. 17. Gate Drive Circuits. 18. Protection of Devices and Circuits. Appendices: Three-phase Circuits, Magnetic Circuits, Switching Functions of Converters, DC Transient Analysis, Fourier Analysis, Thyristor Commutation Techniques, Data Sheets.
2,055 citations
TL;DR: The state-of-the-art view in the development of this matrix converter is presented, starting with a brief historical review and an important part of the paper is dedicated to a discussion of the most important modulation and control strategies developed recently.
Abstract: The matrix converter is an array of controlled semiconductor switches that connects directly the three-phase source to the three-phase load. This converter has several attractive features that have been investigated in the last two decades. In the last few years, an increase in research work has been observed, bringing this topology closer to the industrial application. This paper presents the state-of-the-art view in the development of this converter, starting with a brief historical review. An important part of the paper is dedicated to a discussion of the most important modulation and control strategies developed recently. Special attention is given to present modern methods developed to solve the commutation problem. Some new arrays of power bidirectional switches integrated in a single module are also presented. Finally, this paper includes some practical issues related to the practical application of this technology, like overvoltage protection, use of filters and ride-through capability.
1,879 citations
"Implementation of sinusoidal PWM te..." refers methods in this paper
...The problem of physical space needed by the increased number of switches has been overcome by the development of power electronic building blocks such as the Eupec ECONOMACTM[1] matrix module, or by modifying the matrix converter topologies to use a fewer number of switches....
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...development of power electronic building blocks such as the Eupec ECONOMACTM[1] matrix module, or by modifying the matrix converter topologies to use a fewer number of switches....
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...To overcome these problems, matrix converters [1] has been developed....
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TL;DR: In this paper, the maximum input-output transformer ratio, or output voltage ability, of direct AC-AC pulsewidth-modulated converters is explored and an intrinsic limit, independent of the control algorithm, is found.
Abstract: The maximum input-output transformer ratio, or output voltage ability, of direct AC-AC pulse-width-modulated converters is explored. An intrinsic limit, independent of the control algorithm, is found. A suitable novel converter control algorithm is discussed which achieves such maximum output amplitude ability and displays some interesting features. Finally, the opportunity to implement AC-AC converter control with the use of feedback techniques is considered, and a feedback-based control algorithm for the converter is proposed. >
885 citations
TL;DR: This paper shows how the matrix converter disadvantages-the lack of bidirectional power devices, the lower voltage transfer ratio, and the overvoltages caused by the input filter during power-up-that have delayed the industrial implementation have been overcome.
Abstract: The trend in electrical drives is to integrate the frequency converter, the electrical motor, and even the gear or the pump into a single unit, in order to reduce the costs, to increase the overall efficiency and the equipment reliability. This paper presents the first integrated regenerative frequency converter motor for industry applications, based on a matrix converter topology. The low volume, the sinusoidal input current, the bidirectional power flow, and the lack of the bulky and limited-lifetime electrolytic capacitors recommend this topology for this application. This paper shows how the matrix converter disadvantages-the lack of bidirectional power devices, the lower voltage transfer ratio, and the overvoltages caused by the input filter during power-up-that have delayed the industrial implementation have been overcome. In order to demonstrate the validity of the solution, a 4-kW matrix converter motor prototype is built using a standard frequency converter motor enclosure for testing the requirements for an industrial drive. The tests demonstrate the good performance of the drive.
207 citations
19 Mar 2006
TL;DR: In this article, a hybrid direct power converter (HDPC) is proposed to overcome the two main disadvantages of matrix converters: limited voltage transfer ratio and low immunity to grid disturbance.
Abstract: This paper presents a novel hybrid direct power converter (HDPC) which overcomes the two main disadvantages of matrix converters: limited voltage transfer ratio and low immunity to grid disturbance. The proposed converter is formed by integrating a reversible auxiliary boost converter in the dc link of the two-stage matrix converter. Therefore, the HDPC can provide unity voltage transfer ratio even in the case where the supply voltage is highly unbalanced. The proposed converter also preserves most of the inherent advantages of the conventional matrix converter such as: controllable input power factor, sinusoidal supply currents, and bidirectional power flow. A novel predictive current control technique for the HDPC is also proposed for minimum energy storage in the converter. Important aspects of design, control, and implementation of the new HDPC are presented including theoretical analysis and simulations. Experimental waveforms at unity voltage transfer using a laboratory prototype are presented to confirm the viability of the proposed idea.
91 citations