The use of AC Drives in the industry applications has seen tremendous growth over the last 40 yea... more The use of AC Drives in the industry applications has seen tremendous growth over the last 40 years with the rapid development of high-power semiconductors, power converter topology, new control strategies, and their implementation with the advanced digital processors. These have mode it possible to design drives with higher VA rating, with PWM and VC / DTC. However, this article present a real application in Kronospan S.A. Sebes Romania, where for the first time in Romania a medium voltage static converter was put in function with the load voltage of 6kV. The fast ascension of AC electric drives and static power converters was possible through a continuous and fabulous development of the performances of the semiconductor power devices during the last 50 years. There are two big categories of high power semiconductors: thyristors (which switch currents) where we can include switched rectifiers (SCR), gate-blocked thyristors (GTO), the thyristors with integrated switched gate (ICGT) ...
The paper presents many methods to produce synthetic loading of rotating electric machines (induc... more The paper presents many methods to produce synthetic loading of rotating electric machines (induction, synchronous and DC) without load to the shaft using power converter. The required equipment is simple. Setting-up time is considerably reduced because it is not required to connect an external load to the machine's shaft. The range of r.m.s. current control is large beginning from no-load current to overload at rated speed and temperature, that the total losses in the machine can be identified by taking the average of the measured power over one cycle of synthetic loading of the machine.
The needs for life long learning are increased. So, virtual classrooms and virtual joint laborato... more The needs for life long learning are increased. So, virtual classrooms and virtual joint laboratories are used for individual learning as well for collective ones. These new learning places integrate many technologies and enhance their usability by net-based communication between learning students and connected real devices. Robotics animation and visualization can help student to complex programming robot in virtual and real world. Distributed learning environments that support such learning places enable learners to access a wide range of resources rapidly and economically and allow their active participation in social communities. Lot of experiments has been made with student's access to robotics laboratory equipment though Internet communication. In last decade this education space expanded in Ispace Laboratory Network I. INTRODUCTION The constant development of computers and information technology allows the implementation and application of new methods and systems they had...
In this paper is presented an intelligent approach for mobile robot simulation. One of the basic ... more In this paper is presented an intelligent approach for mobile robot simulation. One of the basic idea is how to modeling of robot manipulators. It has an expanding area of interest because it can aid the design and usage of robots. We usually need design and testing of manipulators, robot action planning, on line control of robot manipulators, user interface, and training and education. RoboSim is a very good simulator developed for simulating the interaction, cooperation, and communication among various robots existing in a complex virtual environment. RoboSim is evaluated from 1995 year in very respectable tool. Usually Robosim used to perform simulations of many types of robots for working within a single, virtual environment. It usually provides a better way to develop various robotic applications in different enviroment. This work analysing the performance of Robosim simulator, various design changes applied to the simulator, and the implementation various architecture on the e...
The problem of finding the optimal path for the robot arm is one of the most important problems o... more The problem of finding the optimal path for the robot arm is one of the most important problems of industrial robot. Problem consists when robot looking for specific routes that require the lowest power consumption. Path that established between any
two end points, can follow many paths. All these paths require different amounts of energy depending on the distance, velocity and acceleration. Path planning for robotic arms have a several degrees of freedom. This problem is solved by using neuro-fuzzy techniques. Using analytical and numerical techniques is very difficult to find a good solution. Mathematically is more
difficulty to move a robotic arm in the presence of obstacles, but child instinctively moving his hand in the presence of obstacles. A way that allows us to progress is a neuro-fuzzy fusion systems. Neural networks make the ability to learn, while Fuzzy logic is based on the emulation of thinking of an expert. In addition, as hardware technology advances, more and more value will be placed on solutions that can be used in parallel processing, such as neural networks and fuzzy logic with neural networks.
Abstract: - In this paper is analyzing the current operating conditions of one electric arc furn... more Abstract: - In this paper is analyzing the current operating conditions of one electric arc furnace (EAF) in order to evaluate the best option to solve the energy consumption problem. Experimental results show that EAFs represent a substantial source of electric disturbances, such as voltage fluctuations, flicker, harmonics, and unbalance between phases. Improvement of the energetic performances of an EAF imposes a careful technical and economical analysis. The possible compensation solutions include passive filter, SVC (static var compensator) and STATCOM (static synchronous compensator). Finally, the guideline for compensator selection and performance estimation is obtained. Key-Words: - Electric Arc Furnace, Flicker, Power Factor, Harmonic Analysis, Reactive Compensator, Improvement.
... View colleagues of Gabriel Nicolae Popa. ... 5. Manuela Panoiu , Caius Panoiu , Mihaela Osaci... more ... View colleagues of Gabriel Nicolae Popa. ... 5. Manuela Panoiu , Caius Panoiu , Mihaela Osaci ,Ionel Muscalagiu, Simulation result about harmonics filtering using measurement of some electrical items in electrical installation on UHP EAF, WSEAS Transactions on ...
... 7. Gabriel Nicolae Popa , Sorin Deaconu ... 9. Manuela Panoiu , Caius Panoiu , Mihaela Osaci ... more ... 7. Gabriel Nicolae Popa , Sorin Deaconu ... 9. Manuela Panoiu , Caius Panoiu , Mihaela Osaci ,Ionel Muscalagiu, Simulation result about harmonics filtering using measurement of some electrical items in electrical installation on UHP EAF, WSEAS Transactions on Circuits ...
The use of AC Drives in the industry applications has seen tremendous growth over the last 40 yea... more The use of AC Drives in the industry applications has seen tremendous growth over the last 40 years with the rapid development of high-power semiconductors, power converter topology, new control strategies, and their implementation with the advanced digital processors. These have mode it possible to design drives with higher VA rating, with PWM and VC / DTC. However, this article present a real application in Kronospan S.A. Sebes Romania, where for the first time in Romania a medium voltage static converter was put in function with the load voltage of 6kV. The fast ascension of AC electric drives and static power converters was possible through a continuous and fabulous development of the performances of the semiconductor power devices during the last 50 years. There are two big categories of high power semiconductors: thyristors (which switch currents) where we can include switched rectifiers (SCR), gate-blocked thyristors (GTO), the thyristors with integrated switched gate (ICGT) ...
The paper presents many methods to produce synthetic loading of rotating electric machines (induc... more The paper presents many methods to produce synthetic loading of rotating electric machines (induction, synchronous and DC) without load to the shaft using power converter. The required equipment is simple. Setting-up time is considerably reduced because it is not required to connect an external load to the machine's shaft. The range of r.m.s. current control is large beginning from no-load current to overload at rated speed and temperature, that the total losses in the machine can be identified by taking the average of the measured power over one cycle of synthetic loading of the machine.
The needs for life long learning are increased. So, virtual classrooms and virtual joint laborato... more The needs for life long learning are increased. So, virtual classrooms and virtual joint laboratories are used for individual learning as well for collective ones. These new learning places integrate many technologies and enhance their usability by net-based communication between learning students and connected real devices. Robotics animation and visualization can help student to complex programming robot in virtual and real world. Distributed learning environments that support such learning places enable learners to access a wide range of resources rapidly and economically and allow their active participation in social communities. Lot of experiments has been made with student's access to robotics laboratory equipment though Internet communication. In last decade this education space expanded in Ispace Laboratory Network I. INTRODUCTION The constant development of computers and information technology allows the implementation and application of new methods and systems they had...
In this paper is presented an intelligent approach for mobile robot simulation. One of the basic ... more In this paper is presented an intelligent approach for mobile robot simulation. One of the basic idea is how to modeling of robot manipulators. It has an expanding area of interest because it can aid the design and usage of robots. We usually need design and testing of manipulators, robot action planning, on line control of robot manipulators, user interface, and training and education. RoboSim is a very good simulator developed for simulating the interaction, cooperation, and communication among various robots existing in a complex virtual environment. RoboSim is evaluated from 1995 year in very respectable tool. Usually Robosim used to perform simulations of many types of robots for working within a single, virtual environment. It usually provides a better way to develop various robotic applications in different enviroment. This work analysing the performance of Robosim simulator, various design changes applied to the simulator, and the implementation various architecture on the e...
The problem of finding the optimal path for the robot arm is one of the most important problems o... more The problem of finding the optimal path for the robot arm is one of the most important problems of industrial robot. Problem consists when robot looking for specific routes that require the lowest power consumption. Path that established between any
two end points, can follow many paths. All these paths require different amounts of energy depending on the distance, velocity and acceleration. Path planning for robotic arms have a several degrees of freedom. This problem is solved by using neuro-fuzzy techniques. Using analytical and numerical techniques is very difficult to find a good solution. Mathematically is more
difficulty to move a robotic arm in the presence of obstacles, but child instinctively moving his hand in the presence of obstacles. A way that allows us to progress is a neuro-fuzzy fusion systems. Neural networks make the ability to learn, while Fuzzy logic is based on the emulation of thinking of an expert. In addition, as hardware technology advances, more and more value will be placed on solutions that can be used in parallel processing, such as neural networks and fuzzy logic with neural networks.
Abstract: - In this paper is analyzing the current operating conditions of one electric arc furn... more Abstract: - In this paper is analyzing the current operating conditions of one electric arc furnace (EAF) in order to evaluate the best option to solve the energy consumption problem. Experimental results show that EAFs represent a substantial source of electric disturbances, such as voltage fluctuations, flicker, harmonics, and unbalance between phases. Improvement of the energetic performances of an EAF imposes a careful technical and economical analysis. The possible compensation solutions include passive filter, SVC (static var compensator) and STATCOM (static synchronous compensator). Finally, the guideline for compensator selection and performance estimation is obtained. Key-Words: - Electric Arc Furnace, Flicker, Power Factor, Harmonic Analysis, Reactive Compensator, Improvement.
... View colleagues of Gabriel Nicolae Popa. ... 5. Manuela Panoiu , Caius Panoiu , Mihaela Osaci... more ... View colleagues of Gabriel Nicolae Popa. ... 5. Manuela Panoiu , Caius Panoiu , Mihaela Osaci ,Ionel Muscalagiu, Simulation result about harmonics filtering using measurement of some electrical items in electrical installation on UHP EAF, WSEAS Transactions on ...
... 7. Gabriel Nicolae Popa , Sorin Deaconu ... 9. Manuela Panoiu , Caius Panoiu , Mihaela Osaci ... more ... 7. Gabriel Nicolae Popa , Sorin Deaconu ... 9. Manuela Panoiu , Caius Panoiu , Mihaela Osaci ,Ionel Muscalagiu, Simulation result about harmonics filtering using measurement of some electrical items in electrical installation on UHP EAF, WSEAS Transactions on Circuits ...
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two end points, can follow many paths. All these paths require different amounts of energy depending on the distance, velocity and acceleration. Path planning for robotic arms have a several degrees of freedom. This problem is solved by using neuro-fuzzy techniques. Using analytical and numerical techniques is very difficult to find a good solution. Mathematically is more
difficulty to move a robotic arm in the presence of obstacles, but child instinctively moving his hand in the presence of obstacles. A way that allows us to progress is a neuro-fuzzy fusion systems. Neural networks make the ability to learn, while Fuzzy logic is based on the emulation of thinking of an expert. In addition, as hardware technology advances, more and more value will be placed on solutions that can be used in parallel processing, such as neural networks and fuzzy logic with neural networks.
order to evaluate the best option to solve the energy consumption problem.
Experimental results show that EAFs represent a substantial source of electric disturbances, such as voltage fluctuations, flicker, harmonics, and unbalance between phases. Improvement of the energetic performances of an EAF imposes a careful technical and economical analysis.
The possible compensation solutions include passive filter, SVC (static var compensator) and STATCOM (static synchronous compensator).
Finally, the guideline for compensator selection and performance estimation is obtained.
Key-Words: - Electric Arc Furnace, Flicker, Power Factor, Harmonic Analysis, Reactive Compensator,
Improvement.
two end points, can follow many paths. All these paths require different amounts of energy depending on the distance, velocity and acceleration. Path planning for robotic arms have a several degrees of freedom. This problem is solved by using neuro-fuzzy techniques. Using analytical and numerical techniques is very difficult to find a good solution. Mathematically is more
difficulty to move a robotic arm in the presence of obstacles, but child instinctively moving his hand in the presence of obstacles. A way that allows us to progress is a neuro-fuzzy fusion systems. Neural networks make the ability to learn, while Fuzzy logic is based on the emulation of thinking of an expert. In addition, as hardware technology advances, more and more value will be placed on solutions that can be used in parallel processing, such as neural networks and fuzzy logic with neural networks.
order to evaluate the best option to solve the energy consumption problem.
Experimental results show that EAFs represent a substantial source of electric disturbances, such as voltage fluctuations, flicker, harmonics, and unbalance between phases. Improvement of the energetic performances of an EAF imposes a careful technical and economical analysis.
The possible compensation solutions include passive filter, SVC (static var compensator) and STATCOM (static synchronous compensator).
Finally, the guideline for compensator selection and performance estimation is obtained.
Key-Words: - Electric Arc Furnace, Flicker, Power Factor, Harmonic Analysis, Reactive Compensator,
Improvement.