jose Rodriguez - Academia.edu (original) (raw)
Papers by jose Rodriguez
IEEE Transactions on Industrial Electronics, 2002
The matrix converter is an array of controlled semiconductor switches that connects directly the ... more 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
IEEE Transactions on Industrial Electronics, 2002
IEEE Journal on Selected Areas in Communications, 1998
A watermarking scheme for copyright protection of still images is modeled and analyzed. In this s... more A watermarking scheme for copyright protection of still images is modeled and analyzed. In this scheme a signal following a key-dependent two-dimensional multipulse modulation is added to the image for ownership enforcement purposes. The main contribution of this paper is the introduction of an analytical point of view to the estimation of performance measurements. Two topics are covered in the analysis: the ownership verification process, also called watermark detection test, and the data hiding process. In the first case, bounds and approximations to the receiver operating characteristic are derived. These results can be used to determine the threshold associated to a required probability of false alarm and the corresponding probability of detection. The data hiding process is modeled as a communications system and approximations for the bit error rate are derived. Finally, analytical expressions are contrasted with experimental results
IEEE Transactions on Industrial Electronics, 2005
New regulations impose more stringent limits on current harmonics injected by power converters th... more New regulations impose more stringent limits on current harmonics injected by power converters that are achieved with pulsewidth-modulated (PWM) rectifiers. In addition, several applications demand the capability of power regeneration to the power supply. This work presents the state of the art in the field of regenerative rectifiers with reduced input harmonics and improved power factor. Regenerative rectifiers are able to deliver energy back from the dc side to the ac power supply. Topologies for single- and three-phase power supplies are considered with their corresponding control strategies. Special attention is given to the application of voltage- and current-source PWM rectifiers in different processes with a power range from a few kilowatts up to several megawatts. This paper shows that PWM regenerative rectifiers are a highly developed and mature technology with a wide industrial acceptance.
IEEE Transactions on Industrial Electronics - IEEE TRANS IND ELECTRON, 2009
IEEE Transactions on Industrial Electronics - IEEE TRANS IND ELECTRON, 2010
The 22 papers in this second part of this special section focus on multilevel inverters.
IEEE Transactions on Industrial Electronics, 2007
IEEE Transactions on Industrial Electronics, 2007
IEEE Transactions on Industrial Electronics, 2008
Predictive control is a very wide class of controllers that have found rather recent application ... more Predictive control is a very wide class of controllers that have found rather recent application in the control of power converters. Research on this topic has been increased in the last years due to the possibilities of today's microprocessors used for the control. This paper presents the application of different predictive control methods to power electronics and drives. A simple classification of the most important types of predictive control is introduced, and each one of them is explained including some application examples. Predictive control presents several advantages that make it suitable for the control of power converters and drives. The different control schemes and applications presented in this paper illustrate the effectiveness and flexibility of predictive control.
IEEE Transactions on Industrial Electronics, 2007
IEEE Industrial Electronics Magazine, 2008
IEEE Transactions on Industrial Electronics, 2002
The matrix converter is an array of controlled semiconductor switches that connects directly the ... more 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
IEEE Transactions on Industrial Electronics, 2002
IEEE Journal on Selected Areas in Communications, 1998
A watermarking scheme for copyright protection of still images is modeled and analyzed. In this s... more A watermarking scheme for copyright protection of still images is modeled and analyzed. In this scheme a signal following a key-dependent two-dimensional multipulse modulation is added to the image for ownership enforcement purposes. The main contribution of this paper is the introduction of an analytical point of view to the estimation of performance measurements. Two topics are covered in the analysis: the ownership verification process, also called watermark detection test, and the data hiding process. In the first case, bounds and approximations to the receiver operating characteristic are derived. These results can be used to determine the threshold associated to a required probability of false alarm and the corresponding probability of detection. The data hiding process is modeled as a communications system and approximations for the bit error rate are derived. Finally, analytical expressions are contrasted with experimental results
IEEE Transactions on Industrial Electronics, 2005
New regulations impose more stringent limits on current harmonics injected by power converters th... more New regulations impose more stringent limits on current harmonics injected by power converters that are achieved with pulsewidth-modulated (PWM) rectifiers. In addition, several applications demand the capability of power regeneration to the power supply. This work presents the state of the art in the field of regenerative rectifiers with reduced input harmonics and improved power factor. Regenerative rectifiers are able to deliver energy back from the dc side to the ac power supply. Topologies for single- and three-phase power supplies are considered with their corresponding control strategies. Special attention is given to the application of voltage- and current-source PWM rectifiers in different processes with a power range from a few kilowatts up to several megawatts. This paper shows that PWM regenerative rectifiers are a highly developed and mature technology with a wide industrial acceptance.
IEEE Transactions on Industrial Electronics - IEEE TRANS IND ELECTRON, 2009
IEEE Transactions on Industrial Electronics - IEEE TRANS IND ELECTRON, 2010
The 22 papers in this second part of this special section focus on multilevel inverters.
IEEE Transactions on Industrial Electronics, 2007
IEEE Transactions on Industrial Electronics, 2007
IEEE Transactions on Industrial Electronics, 2008
Predictive control is a very wide class of controllers that have found rather recent application ... more Predictive control is a very wide class of controllers that have found rather recent application in the control of power converters. Research on this topic has been increased in the last years due to the possibilities of today's microprocessors used for the control. This paper presents the application of different predictive control methods to power electronics and drives. A simple classification of the most important types of predictive control is introduced, and each one of them is explained including some application examples. Predictive control presents several advantages that make it suitable for the control of power converters and drives. The different control schemes and applications presented in this paper illustrate the effectiveness and flexibility of predictive control.
IEEE Transactions on Industrial Electronics, 2007
IEEE Industrial Electronics Magazine, 2008