EPE Association: EPE-PEMC 2004 - Topic 02-3: Matrix converters

EPE-PEMC 2004 - Topic 02-3: Matrix converters
You are here: EPE Documents > 04 - EPE-PEMC Conference Proceedings > EPE-PEMC 2004 - Conference > EPE-PEMC 2004 - Topic 02: POWER ELECTRONICS CONVERTERS > EPE-PEMC 2004 - Topic 02-3: Matrix converters

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   A 150kva Vector Controlled Matrix Converter Induction Motor Drive
By P. W. Wheeler(uk), J. C. Clare(uk), D. Katsis(us), T. Podlesak(us), M. J. Bland(uk), L. Empringham(uk) [View]
[Download]

Abstract: This paper describes the design, construction and testing of a 150kVA Matrix Converter induction motor drive. The converter has been built using 600Amp, 1400Volt IGBTs. This paper outlines the design and construction of this converter, which is the largest Matrix Converter built and tested to date.

   A Matrix Converter Permanent Magnet Motor Drive For An Aircraft Actuator Application With The Ability To Ride-Through Power Supply Loss
By P. W. Wheeler, L. Empringham, M. Apap, J. C. Clare, K. J. Bradley, C. Whitley, G. Towers [View]
[Download]

Abstract: This paper describes the design, construction and testing of a Matrix Converter Permanent Magnet Motor Drive for an Electro- Hydrostatic Aircraft Actuator (EHA). The Matrix Converter has been designed to function correctly under a range of operating scenarios found in aerospace applications, including ride-through during temporary loss of supply. Practical results of the converter operating are presented for a range of test conditions.

   A Spice Simulation Method Of Matrix Converters For Power Device Analysis In Bidirectional Switches
By J. L. Galvez, X. Jorda, M. Vellvehi, P. Godignon, J. Rebollo, M. J. Prieto, J. M. Lopera [View]
[Download]

Abstract: A new method to simulate a three-phase to threephase Matrix Converter in normal operation mode using SPICE is proposed. The simulation will allow to study the behavior of the power devices (IGBTs and FREDs) within a bidirectional switch taking profit from the numerous available SPICE models.

   An Accurate Saber Simulation Of Matrix Converter Drive Systems For More Electric Aircraft Applications
By Liliana De Lillo, Patrick Wheeler, Jon C Clare, Lee Empringham, Maurice Apap, Keith Bradley, Paul Robson, Chris Whitley, Graham Towers [View]
[Download]

Abstract: This paper describes the simulation of Matrix converter drive systems for aircraft actuator applications with particular importance being given to accurately represent the non-linearities present in real drive systems. The simulation results are validated against results from a Matrix converter aircraft actuator demonstrator. The validation of the simulation model offers a platform to further investigate and design other drive systems.

   An Improvement Scheme Of Control Performance For Matrix Converter
By Hideki Ohguchi, Jun-Ichi Itoh, Ikuya Sato, Akihiro Odaka, Hirokazu Kodachi, Naoya Eguchi [View]
[Download]

Abstract: This paper proposes improvement schemes of the voltage control performance for the matrix converter. The voltage control performance is deteriorated because of the commutation method, the output voltage error, and the input voltage disturbance such as the input voltage distortion and unbalance, in general. Firstly, two types of the commutation methods are described in this paper. The switching loss is compared through simulations, and the converter efficiency is compared through experiments on the two methods. Secondly, the output voltage error is analyzed and an error compensation scheme is proposed in this paper. The experimental results show the THD of the output current can be decreased with the proposed compensation. Finally, in order to decrease the distortion of the output voltage in case of the input voltage disturbance, a novel compensation method for the input voltage disturbance is proposed. The adequacy of the method is proved by simulations and experiments. Motor drive characteristics of a 22kW proto type matrix converter, equipped with the proposed methods, are also shown.

   Application Of The Matrix Converter For The Sensorless Control Of Permanent Magnet Ac Machines Using High Frequency Injection
By A. Arias(es), R. Filka(uk), G. Asher(uk), M. Sumner(uk) [View]
[Download]

Abstract: This paper investigates the use of a Matrix Converter for the sensorless control of a Surface Mounted Permanent Magnet Synchronous Machine using High Frequency Injection for zero and low speed. The Matrix Converter has almost zero dead time, which leads to such a converter have a much more linear performance and achieves better results than the conventional Voltage Source Inverter. A comparison of the sensorless technique proposed using both converters is done.

   Application Of The Matrix Converter For Vector Controlled Doubly-Fed Induction Machine
By E. Chekhet, V. Mikhalsky, S. Peresada, I. Shapoval, V. Sobolev [View]
[Download]

Abstract: The paper presents an application of matrix converter technology for high performance vector controlled doubly-fed induction machine used as generator. Brief description of the space vector modulation algorithm and improved commutation strategy for matrix converter as well as high performance torque tracking indirect stator flux oriented vector control algorithm are given. The results of intensive experimental study of the proposed control algorithms for doubly-fed induction machine supplied by matrix converter are presented.

   Improved Control Methods For Enhanced Power Transfer Of The Matrix Converter
By J. Igney, M. Braun [View]
[Download]

Abstract: This paper presents a new modulation strategy for matrix converters, which provides the maximum control range including reactive input power. The modulation strategy is based on modern representations of the switch state in the space vector domain. There geometrical considerations lead to a comprehensible strategy to determine free variables without reducing the intrinsic control range of the switch matrix. A comparison with other modulation strategies shows, that this control range exceeds the control range of all previously proposed modulation strategies. A further advantage is, that low switching losses are expected, because a maximum of switches are idle during a modulation period.

   Investigation Of The Dual Bridge Matrix Converter Operating Under Boost Mode
By Lixiang Wei, Thomas A Lipo [View]
[Download]

Abstract: The dual bridge matrix converter can create high quality input/output waveforms as the normal double bridge converter with less switches, simpler clamp circuit and easier control. Moreover, it can also operate with a common busmultiple inverter fed load condition. As a result, a more flexible and compact design can be made with this topology. This paper investigates the operation of a dual-bridge matrix converter (DBMC) under the boost mode. The converter operates at several hundred hertz fundamental frequency at both the input and two output sides. The high frequency operation at both sides further reduces the size and the weight of the system. Finally, theory analysis and simulation results are presented in the paper to verify its effectiveness.

   Matrix Converters: A New Approach On Venturini Modulation Technique
By S. Ferreira Pinto, J. Fernando Silva [View]
[Download]

Abstract: This paper defines the guidelines for a set of lectures for M.Sc. or Ph.D. students in electrical engineering. These students are very familiar with the Concordia and Park transformations, used in the analysis and design of controllers for most power converters and electrical machines. These previously acquired skills should be advantageously used to introduce the high frequency control of matrix converters, based on ideal dq matrix converter models, allowing an original theoretical approach on the derivation of Venturini modulation indexes.

   Novel Hybrid Modulation Schemes Extending The Reactive Power Control Range Of Conventional And Sparse Matrix Converters Operating At Maximum Output Voltage
By Frank Schafmeister, Johann W. Kolar [View]
[Download]

Abstract: Two novel modulation schemes are proposed for three-phase ACAC Sparse Matrix Converters (SMC) which facilitate the formation of reactive input current for purely reactive load or purely active load and operation at the modulation limit. The derivation of the modulation schemes which also could be employed for Conventional Matrix Converters and rely on a decoupling of the output voltage and the input current formation is described in detail. Furthermore, the operating limits, i.e. the maximum reactive input current which could be formed for given modulation index and load current amplitude are determined. Finally, all theoretical considerations are verified by digital simulations of a 7.5kW Very Sparse Matrix Converter.

   Performance Of SiC Schottky Diodes In Matrix Converter Applications
By M. J. Bland, P. W. Wheeler, J. C. Clare, L. Empringham [View]
[Download]

Abstract: The objective of this paper is to assess the performance of bi-directional switch components for direct AC-AC (matrix) converter applications. Two 2-phase to 1-phase Matrix Converters are constructed with different bi-directional switch components. The three bi-directional switch structures to be considered are: Silicon (Si) diode-Si IGBT and Silicon Carbide (SiC) diode-Si IGBT. All of the commutation scenarios possible in a Matrix Converter topology using two or four step commutation are studied. The improved reverse recovery performance of the SiC Schottky diodes is assessed with reference to measured switching waveforms. The effect of the two different switch structures on the overall performance of the Matrix Converter with particular attention to power circuit losses is investigated.

   S-A-X-II - Converter - An Efficient, Reduced Matrix Converter Topology For Energy Recovering
By D. Domes, W. Hofmann, M. Ziegler, S. El-Barbari [View]
[Download]

Abstract: The paper proposes a new topology for electrical drives using a reduced matrix converter. Modifying the classical matrix converter topology that way, that only two output phases with unidirectional current flow remain, the number of unidirectional active switches can be reduced to 33%. The commutation strategy becomes inherent safe and simple compared to the classical matrix converter. Problems with static magnetic fields in the stator field of a three-phase machine, caused by the DC-parts in the two converter output currents, can be solved using a transformer. A great advantage over former presented reduced topologies is that the mains currents are symmetrical to time axis in principle.

EPE-PEMC 2004 - Topic 02-3: Matrix converters
You are here: EPE Documents > 04 - EPE-PEMC Conference Proceedings > EPE-PEMC 2004 - Conference > EPE-PEMC 2004 - Topic 02: POWER ELECTRONICS CONVERTERS > EPE-PEMC 2004 - Topic 02-3: Matrix converters
	[return to parent folder]

	A 150kva Vector Controlled Matrix Converter Induction Motor Drive By P. W. Wheeler(uk), J. C. Clare(uk), D. Katsis(us), T. Podlesak(us), M. J. Bland(uk), L. Empringham(uk)	[View] [Download]
Abstract: This paper describes the design, construction and testing of a 150kVA Matrix Converter induction motor drive. The converter has been built using 600Amp, 1400Volt IGBTs. This paper outlines the design and construction of this converter, which is the largest Matrix Converter built and tested to date.

	A Matrix Converter Permanent Magnet Motor Drive For An Aircraft Actuator Application With The Ability To Ride-Through Power Supply Loss By P. W. Wheeler, L. Empringham, M. Apap, J. C. Clare, K. J. Bradley, C. Whitley, G. Towers	[View] [Download]
Abstract: This paper describes the design, construction and testing of a Matrix Converter Permanent Magnet Motor Drive for an Electro- Hydrostatic Aircraft Actuator (EHA). The Matrix Converter has been designed to function correctly under a range of operating scenarios found in aerospace applications, including ride-through during temporary loss of supply. Practical results of the converter operating are presented for a range of test conditions.

	A Spice Simulation Method Of Matrix Converters For Power Device Analysis In Bidirectional Switches By J. L. Galvez, X. Jorda, M. Vellvehi, P. Godignon, J. Rebollo, M. J. Prieto, J. M. Lopera	[View] [Download]
Abstract: A new method to simulate a three-phase to threephase Matrix Converter in normal operation mode using SPICE is proposed. The simulation will allow to study the behavior of the power devices (IGBTs and FREDs) within a bidirectional switch taking profit from the numerous available SPICE models.

	An Accurate Saber Simulation Of Matrix Converter Drive Systems For More Electric Aircraft Applications By Liliana De Lillo, Patrick Wheeler, Jon C Clare, Lee Empringham, Maurice Apap, Keith Bradley, Paul Robson, Chris Whitley, Graham Towers	[View] [Download]
Abstract: This paper describes the simulation of Matrix converter drive systems for aircraft actuator applications with particular importance being given to accurately represent the non-linearities present in real drive systems. The simulation results are validated against results from a Matrix converter aircraft actuator demonstrator. The validation of the simulation model offers a platform to further investigate and design other drive systems.

	An Improvement Scheme Of Control Performance For Matrix Converter By Hideki Ohguchi, Jun-Ichi Itoh, Ikuya Sato, Akihiro Odaka, Hirokazu Kodachi, Naoya Eguchi	[View] [Download]
Abstract: This paper proposes improvement schemes of the voltage control performance for the matrix converter. The voltage control performance is deteriorated because of the commutation method, the output voltage error, and the input voltage disturbance such as the input voltage distortion and unbalance, in general. Firstly, two types of the commutation methods are described in this paper. The switching loss is compared through simulations, and the converter efficiency is compared through experiments on the two methods. Secondly, the output voltage error is analyzed and an error compensation scheme is proposed in this paper. The experimental results show the THD of the output current can be decreased with the proposed compensation. Finally, in order to decrease the distortion of the output voltage in case of the input voltage disturbance, a novel compensation method for the input voltage disturbance is proposed. The adequacy of the method is proved by simulations and experiments. Motor drive characteristics of a 22kW proto type matrix converter, equipped with the proposed methods, are also shown.

	Application Of The Matrix Converter For The Sensorless Control Of Permanent Magnet Ac Machines Using High Frequency Injection By A. Arias(es), R. Filka(uk), G. Asher(uk), M. Sumner(uk)	[View] [Download]
Abstract: This paper investigates the use of a Matrix Converter for the sensorless control of a Surface Mounted Permanent Magnet Synchronous Machine using High Frequency Injection for zero and low speed. The Matrix Converter has almost zero dead time, which leads to such a converter have a much more linear performance and achieves better results than the conventional Voltage Source Inverter. A comparison of the sensorless technique proposed using both converters is done.

	Application Of The Matrix Converter For Vector Controlled Doubly-Fed Induction Machine By E. Chekhet, V. Mikhalsky, S. Peresada, I. Shapoval, V. Sobolev	[View] [Download]
Abstract: The paper presents an application of matrix converter technology for high performance vector controlled doubly-fed induction machine used as generator. Brief description of the space vector modulation algorithm and improved commutation strategy for matrix converter as well as high performance torque tracking indirect stator flux oriented vector control algorithm are given. The results of intensive experimental study of the proposed control algorithms for doubly-fed induction machine supplied by matrix converter are presented.

	Improved Control Methods For Enhanced Power Transfer Of The Matrix Converter By J. Igney, M. Braun	[View] [Download]
Abstract: This paper presents a new modulation strategy for matrix converters, which provides the maximum control range including reactive input power. The modulation strategy is based on modern representations of the switch state in the space vector domain. There geometrical considerations lead to a comprehensible strategy to determine free variables without reducing the intrinsic control range of the switch matrix. A comparison with other modulation strategies shows, that this control range exceeds the control range of all previously proposed modulation strategies. A further advantage is, that low switching losses are expected, because a maximum of switches are idle during a modulation period.

	Investigation Of The Dual Bridge Matrix Converter Operating Under Boost Mode By Lixiang Wei, Thomas A Lipo	[View] [Download]
Abstract: The dual bridge matrix converter can create high quality input/output waveforms as the normal double bridge converter with less switches, simpler clamp circuit and easier control. Moreover, it can also operate with a common busmultiple inverter fed load condition. As a result, a more flexible and compact design can be made with this topology. This paper investigates the operation of a dual-bridge matrix converter (DBMC) under the boost mode. The converter operates at several hundred hertz fundamental frequency at both the input and two output sides. The high frequency operation at both sides further reduces the size and the weight of the system. Finally, theory analysis and simulation results are presented in the paper to verify its effectiveness.

	Matrix Converters: A New Approach On Venturini Modulation Technique By S. Ferreira Pinto, J. Fernando Silva	[View] [Download]
Abstract: This paper defines the guidelines for a set of lectures for M.Sc. or Ph.D. students in electrical engineering. These students are very familiar with the Concordia and Park transformations, used in the analysis and design of controllers for most power converters and electrical machines. These previously acquired skills should be advantageously used to introduce the high frequency control of matrix converters, based on ideal dq matrix converter models, allowing an original theoretical approach on the derivation of Venturini modulation indexes.

	Novel Hybrid Modulation Schemes Extending The Reactive Power Control Range Of Conventional And Sparse Matrix Converters Operating At Maximum Output Voltage By Frank Schafmeister, Johann W. Kolar	[View] [Download]
Abstract: Two novel modulation schemes are proposed for three-phase ACAC Sparse Matrix Converters (SMC) which facilitate the formation of reactive input current for purely reactive load or purely active load and operation at the modulation limit. The derivation of the modulation schemes which also could be employed for Conventional Matrix Converters and rely on a decoupling of the output voltage and the input current formation is described in detail. Furthermore, the operating limits, i.e. the maximum reactive input current which could be formed for given modulation index and load current amplitude are determined. Finally, all theoretical considerations are verified by digital simulations of a 7.5kW Very Sparse Matrix Converter.

	Performance Of SiC Schottky Diodes In Matrix Converter Applications By M. J. Bland, P. W. Wheeler, J. C. Clare, L. Empringham	[View] [Download]
Abstract: The objective of this paper is to assess the performance of bi-directional switch components for direct AC-AC (matrix) converter applications. Two 2-phase to 1-phase Matrix Converters are constructed with different bi-directional switch components. The three bi-directional switch structures to be considered are: Silicon (Si) diode-Si IGBT and Silicon Carbide (SiC) diode-Si IGBT. All of the commutation scenarios possible in a Matrix Converter topology using two or four step commutation are studied. The improved reverse recovery performance of the SiC Schottky diodes is assessed with reference to measured switching waveforms. The effect of the two different switch structures on the overall performance of the Matrix Converter with particular attention to power circuit losses is investigated.

	S-A-X-II - Converter - An Efficient, Reduced Matrix Converter Topology For Energy Recovering By D. Domes, W. Hofmann, M. Ziegler, S. El-Barbari	[View] [Download]
Abstract: The paper proposes a new topology for electrical drives using a reduced matrix converter. Modifying the classical matrix converter topology that way, that only two output phases with unidirectional current flow remain, the number of unidirectional active switches can be reduced to 33%. The commutation strategy becomes inherent safe and simple compared to the classical matrix converter. Problems with static magnetic fields in the stator field of a three-phase machine, caused by the DC-parts in the two converter output currents, can be solved using a transformer. A great advantage over former presented reduced topologies is that the mains currents are symmetrical to time axis in principle.